ROADPAC´14 RP51
PRAGOPROJEKT a.s., 147 54 Praha 4, K Ryšánce 16
PROGRAM RP51
Construction of corridor cross sections
User guide
Release 25.02.2014
© Pragoprojekt a.s. 1986-2014
RP51 Construction of corridor cross sections
2 User guide
1. Introduction
Program RP51 “Construction of corridor cross sections” is part of package
ROADPAC. It serves for complex processing of roadway for solving construction
of corridor cross section in alignment range. Program is controlled by a
preprocessing program.
1.1 Function of program
Program computes - constructs corridor cross sections, uses actual input data and
results data of programs RP43-cross section arrangement, RP31- vertical alignment
and RP27-Terrain cross sections. This program can be followed by programs
RP53- Drawing of corridor cross sections, RP83-Perspective views on designed
corridor and RP71- Calculation of cut-fill earthworks etc.
1.2 Processed data files
Input files
.V51 - file of actual input data of program RP51
.STR - terrain cross sections file
.SNI - vertical alignment file
.SKR - cross section arrangement file (grading details)
Output files
.V51 - probably modified file of input data
.L51 - Listing
.SPR - corridor cross sections file
.O51 - graphic informative and checking file
2. Input data
The input data are processed by filling and editing of tables or to click on controls
placed on forms appearing on the computer display. Display operation is described
in special user guide. See chapter “Introduction”. Forms usually incorporate
common control part, graphical part if it is useful and input data part. A Picture
box, if is placed on form, serve to display immediate results. Input data of program
corridor cross section of road are prepared in several blocks. Each block includes
one or more tables. Some of them can be omitted (according to a type of task).
Tables are placed on several tabs. Program offers immediate graphic verification of
current processing. Currently computed cross-sections are displayed at ones.
Practice with program is next:
Specification of parameters ► calculation ► visual checking.
Alternative specification of parameters ► calculation ► visual checking.
Construction of corridor cross sections RP51
User guide 3
2.1 Corridor cross sections- modification.
After program start an information form is shown on the screen with displayed
urgent input files state. It means urgent for successful calculation. If any of light
bulbs not shining proper defect must be eliminated – urgent input files must exists
and must be available.
An interactive control program proceeds assigning of task parameters as well as
program running. After push down button „Assemble corridor cross section“ the
main form of preprocessing program is shown.
After push down button „Templates" the function enables easier access for
newcomer users. From Menu form are accessible basic elements (items) of corridor
cross section specification. Selected items are then used for assembling of input
data. Than main form of control program is shown likewise for further edition and
modification of task parameters. Previous data stored in V51 if co-exists are
substituted. For appropriate modification if requested is necessary to use standard
regimes. More detailed description of all program possibilities and features see
follows.
2.2 Control data
Controls list:
Date is date of input data assignment
RP51 Construction of corridor cross sections
4 User guide
Project Title and Road Title
Those texts will be printed in the header of output files and listings.
Picturebox In picturebox is displayed only one cross section always. Beside
picturebox are placed its zoom controls, combobox which contains chainages of all
cross sections of the current task and buttons for fast selection of previous, next first
and last cross section of current task. Coordinates X and Z of mouse cursor
position are also displayed, if right mouse button is permanently pressed over area
of picturebox. Origin of coordinates is placed on axis with level = 0.
Checkboxes serving for what and how options.
Graphic scheme of parameters (Right beside) Picture changes according selected
Tab and selected parameter. It serves like graphical tooltip.
2.2 Block parameters of corridor
2.3 First assembling of cross section Regime
If input data file align.V51 not exists yet, program assembles cross sections file
immediately after program start with standard parameters. Only those cross sections
are assembled which has its equivalent in cross section arrangement input file .SKR
and terrain cross section file. If input data file already exists program process
current data.
Construction of corridor cross sections RP51
User guide 5
2.3 Correction of cross section regime.
Afterwards the user is able step by step in parts and parameters groups specify and
modify parameters of task according his requirements.
Tabs serves for parameters group selection. See next picture. For detailed
explanation see chapter 3.
Tables serve for detailed parameters specification. See next picture. For detailed
explanation see chapter 3.
Button serves for correction of ditches bottom levels.
3. Parameters of cross section
3.1 Standard and substandard parameters
If no parameters are specified on tabs in tables, program assembles cross sections
file according standard parameters. In next text are mentioned all these standard
(default) parameters values explicitly.
On 13 available tabs organized to groups at proper tables should be any parameter
change to substandard value by user
Last tab is determined for pavement construction layers templates specification
See chapter 4.
RP51 Construction of corridor cross sections
6 User guide
3.2 Basic using terms
Basic using terms are shown on pictures No 2a, 2b, 2c.
Picture No 2a:
1-2 fillet 5-6 unpaved shoulder (verge)
1-3 cut 7-8 unpaved shoulder (verge)
3-4 rock excavation 8-9 Off-cut
4-5 ditch in cut 6-7 roadway
Picture No 2b:
1-2 foot ditch 6-7 fill (embankment)
2-3 fill (embankment) 7-8 special shapes
3-4 unpaved shoulder (verge) 4-5 roadway
5-6 unpaved shoulder (verge)
Construction of corridor cross sections RP51
User guide 7
Picture No 2c:
1-2 transition part between cut 4-5 unpaved shoulder (verge)
and fill 5-6 embankment(fill)
2-3 unpaved shoulder (verge) 6-7 foot ditch
3-4 area of roadway 8-9 formation in intersection
with existing pavement
3.3 Templates
Button<Use Template> is addresed to inexperienced users for easy way how
to assembly corridor cross sections without detail understanding over all
program paremetres and its functionality . In several graphic menus are
stored basic task types in 288 combinations of ditch , slope e.i. shapes.
After click on the button the next forms will be shown. It contains six basic
simple types of roads, six basic simple solution of central reserve and basic
boolean solutions of ditches, transitional parts, filleting of slopes , top soil
spreading e.i. (see next picture.)
RP51 Construction of corridor cross sections
8 User guide
4 Detailed description of parameters
Verge (Unpaved shoulder) (10-11)
Meaning of individual items is following:
Side code: [L/ /R]
Space (blank) means validity of parameters for both sides
L validity of parameters for the left side
R validity of parameters for the right side of the roadway
Validity from
It is the chainage (km). Specified parameters are valid from.
Validity to
It is the chainage (km). Specified parameters are valid to.
Parameter Standard Dimension Meaning
P10-1 .75 m Shoulder - width
P10-2 8. +-% Shoulder - gradient (principle and size)
1)
P10-3 0. +-% Formation -gradient (principle and size)
1)
P10-4 0. m Shoulder - congestion (at ditch in cut) 2)
P11-1
0. - Widening of shoulder - code (for safety fence)
= 0 if height of embankment HN>P11-3
3)
= 1 always 4)
= 2 never
P11-2 0.75 m Widening - size (not assigned = 0.75 m)
P11-3 4. m Widening - critical height (not assigned = 4
m)
Notes:
1. Gradient of shoulder and formation
Construction of corridor cross sections RP51
User guide 9
1.1. P10-2 = 0 (P10-3 = 0) indicates unpaved shoulder crossfall (formation under
shoulder), in case that gradient ascending towards centreline. When gradient
descending towards centreline, gradient of shoulder will be done 8% out,
gradient of formation will always extended.
1.2. P10-2 > 0 (P10-3 > 0) indicates construction of assigned gradient P10-2
(P10-3). When crossfall of pavement is greater than P10-2 and also greater
than P10-3, pavement gradient will be extended. If gradient is descending
towards centreline, opposite gradient will be done.
1.3. P10-2 < 0 (P10-3 < 0 means extension of pavement gradient for shoulder
crossfall and formation crossfall under pavement if gradient ascending
towards centreline. If pavement gradient is descending towards centreline,
opposite gradient will be done.
2. Congestion is always performed together with ditch in cut. If there is not
done code P11-1 which is preferred (program alert by warning about formal
error).
3. Widening will be performed if embankment is higher than P11-3. Height
of embankment HK is measured according to note of code P30-1. Widening
is not radically performed if type of embankment P20-1 = 6 is set. In case of
embankment without ditch is HK measured from terrain.
4. Widening will be performed without respect on fact either it is cutting or
embankment.
Annotations to solution of shoulder are shown on following pictures No 3a till 3e.
Picture No 3a:
Basic width at HN < P11-3 or at P11-1 = 2.
Picture No 3b:
Widening at HN > P11-3 (P11-1 = 0) or at P11-1 = 1.
RP51 Construction of corridor cross sections
10 User guide
Picture No 3c:
Extension of pavement crossfall (formation) at
P10-2 = 0 or P10-2 < P
P10-2 = 0 or P10-3 < P
Picture No 3d:
Gradient of formation if pavement (formation) crossfall is descending
towards CL is always descending in opposite direction.
Picture No 3e:
Construction of corridor cross sections RP51
User guide 11
Shoulder width congestion in cut.
For P11-1 <> 1 will be used P10-4 value.
For P11-1 = 1 widening if P11-2 is set will be always performed.
Central reserve and paved central reserve (12)
Meaning of individual items is following:
Side code: [L/ /R]
Space (blank) means validity of parameters for both sides
L validity of parameters for the left side
R validity of parameters for the right side of the roadway
Validity from
It is the chainage (km). Specified parameters are valid from.
Validity to
It is the chainage (km). Specified parameters are valid to.
Parameter Standard L Standard R Dimension Meaning
P12-1 0. 0.75 m Break Point - distance from
central reserve
P12-2 0. 0.06 m BP - superelevation (from
inside edge of pavement,
down is positive)
P12-3 6. 6. % Formation - gradient (under
RP51 Construction of corridor cross sections
12 User guide
central reserve)
P12-4 0. 0.75 m Formation – drainage
position (distance from
centreline)
Picture No 4
Meaning of parameter Standard
Notes:
1. Left and right part must be always
specified even when a side limits are
specified.
2. Upper part of central reserve can be
given by maximally two Break Points.
If both parameters P12-1 are positive,
one BP lays on the left and the next one
on the right side.
When parameter P12-1 < 0 is given, actual BP point (L or R) is located on opposite
side.
3. Points will be omitted by specification of parameter P12-1 = 0 together with
P12-2 = 0. See picture-standard where is break point omitted on the left.
4. Both points can be omitted this way. Then central reserve will be a
connection line of inner edges of pavement (inner points of grading details).
5. To design of central reserve as point on centreline set parameter P12-1 on the
left or on the right by value 0.01.
6. Formation in central reserve is defined by position of drains on the left and
on the right (P12-4) and by gradient leading to drainage from edge of
formation (P12-3). In case that drains on the left and right are assigned,
gradient between them is designed automatically.
7. Gradient P12-3 and also axial distance P12-4 are always specified positive.
Value P12-4 = 0 indicates suppression of drain. Both drains can be
suppressed this way. When axial drain in central reserve is needed set one of
parameters P12-4 = 0.01, second P12-4 = 0.
Construction of corridor cross sections RP51
User guide 13
8. Modification of central reserve must be always specified on two rows for the
left (L) and right (R) side in same segment of chainage. When condition of
program is not kept, shows mistake of data.
9. Drain can be assigned either directly in centreline of roadway (see picture
No 5) or on the left or right from centreline (distance >= 0.25m). Position is
modified at other specification.
Examples of specification in usual cases:
Picture No 5a: Picture No 5b:
Parameters: Parameters:
P12-1 1.5 -0.5 -0.5 1.5
P12-2 0.1 0.1 0.1 0.1
P12-3 6. 6. 6. 6.
P12-4 1. 1. 1. 0.
Picture No 5c: Picture No 5d:
Parameters: Parameters:
P12-1 1.0 1.0 1. 0.
P12-2 0.1 0.1 0.1 0.
P12-3 6. 6. 6. 6.
P12-4 1. 0. 0. 0.
without drainage
RP51 Construction of corridor cross sections
14 User guide
Picture No 5 e: Picture No 5 f:
Parameters: Parameters:
P12-1 0. 1. 0.01 0.
P12-2 0. 0.1 0.1 0.
P12-3 6. 6. 6. 6.
P12-4 0.01 0. 0. 1.
Picture No 5g:
Parameters:
P12-1 0. 0.
P12-2 0. 0.
P12-3 6. 6.
P12-4 0. 1.
Parameters Settings in case of an additional lane placing in central reserve:
Central reserve can overlap the centreline in case of insertion of left-turning lane
but there are necessary to keep some modifications in construction of central
reserve. Basic meaning of parameters P12-X stays without change. Also principles
for their use are not changed.
When central reserve exists and any parameters P12-X are not given, following
default values are used:
a) When right half of central reserve wide is 1.0 m at least, parameters in
accordance with previous documentation are used:
on the left: on the right:
P12-1 = 0. m P12-1 = 0.75 m
P12-2 = 0. m P12-2 = 0.06 m
P12-3 = 6. % P12-3 = 6. %
P12-4 = 0. m P12-4 = 0.75 m
b) When the condition is not fitted and left half of central lane wide is 1.0 m at
least, symmetrical parameters are used:
P12-1 = 0.75 m P12-1 = 0.0 m
P12-2 = 0.06 m P12-2 = 0.0 m
P12-3 = 6. % P12-3 = 6. %
P12-4 = 0.75 m P12-4 = 0.0 m
Construction of corridor cross sections RP51
User guide 15
c) When neither this condition is fulfill, solution without gutter (connection of
both edges of central reserve) and with drain in half of width central reserve is used:
P12-1 = 0.0 m P12-1 = 0.0 m
P12-2 = 0.0 m P12-2 = 0.0 m
P12-3 = 6. % P12-3 = 6. %
P12-4 = D m P12-4 = 0.0 m, when central point D lays on the left, or
P12-4 = 0.0 m P12-4 = D m, when central point D lays on the right.
In case that distance from point D (drain) to nearer edge of formation is smaller
than 0.25 m, drain is overlooked and ending points of formation are connected by
line. Ending points of pavement cannot layover and also ending points of formation.
This is controlled by program CROSS SECTION ARRANGEMENT. If ending
points of pavement or formation gets over central reserve then are written in "big
protocol" with opposite sign. In this case beginning points of pavement or
formation do not lay on centreline but they are always identical.
In new version program RP51 allows solving of following 12 types of central
reserves in crown (combination of parameters P12-1 and P12-2) and 8 type of
central reserves in formation (combination of parameters P12-3 and P12-4):
Variants of crown solution for dual carriageway:
RP51 Construction of corridor cross sections
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1 2 points of central reserve on the left 7 connection of outside points
2 2 points of central reserve on the right New options:
3 1 point on the left, 1 point on the 8 all central lane on the right
right 9 ditto, connection of points
4 1 point of central reserve on the left 10 all central lane on the left
5 1 point of central reserve on the right 11 ditto, connection of points
6 1 point of central reserve on centerline 12 solution with curbs
For dual carriageways, where is placed left-turning additional lane (on one side or
on both directions), only one solution is possible:
For roof crossfall on lane is add point at centreline by extension of carriageways
crossfall and it will be automatically vertically placed at the level of theoretical
horizontal alignment. The crossfall of carriageway continues without interruption at
one-sided crossfall.
In such case central reserve must be coded by giving parameters for both sides of
carriageway by this way:
P12-1 = 0.0 m P12-3 = 0.0
P12-2 = -1.0 m P12-4 = 0.0
Omission of parameters P12 would appear adding of default values according to
paragraphs a) till c) that is not right solution.
Variants of formation solution for dual carriageways:
1 Drain on the left and right New options:
Construction of corridor cross sections RP51
User guide 17
2 Drain only on the right 6 Whole of central reserve with drain on the left
3 Drain only on the left
4 Without drain 7 Ditto without drain
5 Drain on central line 8 All central reserve without drain
9 Ditto, without drain
Test on error No 746 “drain out of central reserve” has been added in new version.
Drain is placed inside central reserve, into position given by parameters P12-4. Zero
value of parameter indicates omission of drain. Exact position in central reserve is
dimensioned by assignment P12-4 = 0.01 (on the left or right or both). When
assigned position is out of central reserve, warning No 746 is shown. When
assigned position is identical with inside edge of pavement, drain is moved towards
center of central reserve up to 0.27 m so it will be placed inside of central reserve.
Example of solution with additional turning lane that overlaps centreline (picture
from RP53):
Paved central reserve
Meaning of individual items is following:
Drainage placing: [L/ R]
L drain will be placed on the left side
R drain will be placed on the right side
Start of pavement
It is the chainage (km). Start of paved central reserve segment.
End of pavement
It is the chainage (km). End of paved central reserve segment.
Formation gradient
Gradient (%) of formation under paved part of central reserve.
RP51 Construction of corridor cross sections
18 User guide
Offset of drain
Offset distance in meters from centreline of drain placement
Fill slopes (20 - 22)
Meaning of individual items is following:
Side code: [L/ /R] ditto
Validity from ditto
Validity to ditto
Parameter Standard Dimension Meaning, note
P20-1
0 - Type of embankment construction
= 0 embankment according to ČSN 2)
= 1 broken-slope, foot to top 1)
= 2 broken-slope, top to foot 1)
= 3 simple slope assigned 1:b1
= 4 simple slope referring to comparative
height HN 3)
= 5 simple slope given by through point
= 6 simple slope given by level on specified
side limit, fill slope solution without respect on
terrain position 4)
P20-2
0 - for P20-1 = 0 or 6 has no sense
m for P20-1 = 5 distance of reference point from
centreline
- for P20-1 other: first gradient of layer 1 : P20-
2
P20-3
0 - for P20-1 = 0 or 3 has no sense
m for P20-1 = 5 or 6 level of reference point
m for P20-1 = 4 : first comparative height SV1
m for P20-1 = 1 or 2 first thickness of layer
P20-4 0 - for P20-1 = 1, 2, 4 other gradient of layer1 :
Construction of corridor cross sections RP51
User guide 19
P20-4
P21-1 (P22-1) 0 m for P20-1 = 4 other comparative height SV
m for P20-1 = 1 or 2 other thickness of layer
P21-2 0 - for P20-1 = 1, 2, 4 other gradient of layer
(P22-2)
P21-3 (P22-3) 0 m see P21-1
P21-4 0 - see P21-2
Notes:
1. For type P20-1 = 1, 2 and 4 can max. 6
various gradients and 5 thicknesses of
layers (or comparative heights) be
assigned. 2 gradients and 1 thickness
(SV) must be minimally specified. All
other parameters are omitted in this
case. (Use space in proper table cell.)
None of specified parameters can be
equal to 0.
2. Broken slopes in accordance with ČSN
broken slopes generally program usually starts to construct from terrain.
When foot ditch type 2 is made, broken slope starts from bottom of foot
ditch.
3. Height of embankment HN is measured from terrain. In case of ditch type 2;
from bottom of ditch, in case of ditch type 3 from bench (compare pictures
for code P30-1). Height HN must be given on table row in ascending order.
4. In this case IP with terrain is not argument of construction end. In such case
construction ends at IP point with side limits borderline, on elevation P20-3.
Solution will be performed also in case that points A,C or BO lays under
terrain. Simultaneously cannot be assigned code P50-1=6. Point BO on
borderline cannot lay higher then point A. In such a case is performed
standard solution (P20-1=0). When parameter P20-1=6 is specified program
does not perform conditioned widening of shoulder. When edge line A-BO
does not intersect formation, the formation will be extended until borderline
by same gradient as before.
Generally: When embankment does not intersect extended terrain, the terrain is
ended vertically in a point AN. Terrain is extended horizontally on 50 m.
Scheme and notes of embankment shapes: Ending of embankment on the bottom
depends on type of foot ditch (see later). Drawn scheme are usually without foot
ditch but they can continue into ditch type 1,2 or 3.
P20-1 = 0, embankment in accordance with CSN
Picture No 6a: Picture No 6b:
Less than 6 m more then 6 m
RP51 Construction of corridor cross sections
20 User guide
P20-1 = 1 General broken-slope given from foot to top
Picture No 7a:
% dh
P20-2 P20-3
P20-4 P21-1
P21-2 P21-3
P21-4 -
P20-1 = 2 General broken slope given from the top to foot
Picture No 7b:
% dh
P20-2 P20-3
P20-4 P21-1
P21-2
P20-1 = 3 Simple gradient
Picture No 7c:
Construction of corridor cross sections RP51
User guide 21
%
P20-2 -
P20-1 = 4 simple gradient in accordance on elevation HN
Picture No 7d:
% dh
P20-2 P20-3 1) for HN < P20-3 is used 1: P20-2
P20-4 P21-1 2) for HN < P21-1 is used 1: P20-4
P21-2 - 3) for HN > P21-1 is used 1: P21-2
A) with or without ditch B) with ditch type 2 C) with ditch type 3
ditch type 1
P20-1 = 5 Simple gradient done by reference point
Picture No 7e:
Program checks if point A descends. Point B gives only direction of gradient and
can also lie under terrain. Embankment ends on terrain as normal or on level of
ditch.
P20-2 P20-3
P20-1 = 6 Simple gradient directing to point BO (level at side limit)
Picture No 7f:
- P20-3
RP51 Construction of corridor cross sections
22 User guide
Point BO and also point A can pertinently lie under terrain. The only condition is
that gradient from point A to point BO descends towards BO.
Picture 7g:
Ditch at foot of fill slopes (30 - 31)
Meaning of individual items is following:
Side code: [L/ /R] ditto
Validity from ditto
Validity to ditto
Parameter Standard Dimension Sense
P30-1
3 - Type of foot ditch
= 0 ditch of type 1 on existing terrain
descending towards centreline 2)
= 1 ditch of type 1 always 2)
= 2 without ditch
= 3 ditch of type 2 on existing terrain
descending towards centreline
= 4 ditch of type 2 always
= 5 ditch of type 3 if terrain descending
towards centreline only 4)
Construction of corridor cross sections RP51
User guide 23
= 6 ditch above terrain
P30-2 0.4 m depth of ditch 1)
3)
P30-3 0 m bottom width
P30-4 2. - slope gradient behind ditch (from terrain) 1 :
P30-4
P31-1 2.5 - gradient of slope in front of ditch (from
bench)1: P31-1
P31-2 0 m bench width
P31-3 0 % gradient of bench
P31-4 2. m checking height for modification of gradient
(gives P31-4 = 0 also indicates P31-4 = 2 m)
5)
Notes:
1. For type 1 and 3 is depth P30-2 measured
from bench, for type 2 from existing terrain
in place of bottom (see picture No 8)
2. When in case of type 1 bottom of ditch gets
to above terrain, ditch will be cancelled.
3. When level of ditch bottom is assigned
(fixed) by label 92, value P30-2 at ditch of type 1 and 2 is ignored. If the
bottom gets to above terrain, ditch will be cancelled. Ditch of type 3 cannot
be assigned in case that level of bottom is given by code 92. Program shows
warning with mistake and ditch is cancelled.
5. Condition Dh < P31-4 for type 1 and 2, see next picture, is not performed,
parameters are modified: new P31-4 = (P31-4) x 2 and new P30-4 = P30-4 -
0.25. If condition is come true in such case, new parameters P31-4 and P30-
4 will be assembled in this section. If does not suite it, next modifications
are performed until condition is fulfilled. This condition is not permitted for
type 3, it does not make sense.
Scheme of entities for specification of foot ditch is on picture No 8a, 8b, 8c.
HN (height of embankment) is used for widening of shoulder (P11-1 = 0) and also
for gradient of embankment according to its height (P20-1 = 4).
Ditch type 1 (Placed behind IP of embankment slope with terrain)
When absolute level of ditch bottom is specified (code 92), P30-2 is ignored.
Picture No 8a:
RP51 Construction of corridor cross sections
24 User guide
Ditch type 2 (Embankment slope ended at ditch bottom)
When absolute level of ditch bottom is specified (code 92), P30-2 is ignored.
Picture No 8b:
Ditch type 3 (Used when existing terrain descending towards CL only)
Picture No 8c:
Note: Bottom cannot be given by absolute height (code 92 for ditch type
3); in this case program cancels construction of the ditch.
Rocky slopes (40 - 41)
Meaning of individual items is following:
Side code: [L/ /R]
Space (blank) means validity of parameters for both sides
Construction of corridor cross sections RP51
User guide 25
L validity of parameters for the left side
R validity of parameters for the right side of the roadway
Validity from
It is the chainage (km). Specified parameters are valid from.
Validity to
It is the chainage (km). Specified parameters are valid to.
Parameter Standard Dimension Meaning
P40-1 3 - Gradient of rock excavation in upper layer is
(P40-1) : 1 2)
P40-2 3 - Gradient of rock excavation in deeper layers is
(P40-2) : 1 2) 5) 7)
P40-3 10 - Rock border (according soil classification
number) 1)
P40-4 1 m width of bench between the rock and cut
4)
P41-1 2. m width of bench in rock
P41-2 5. % gradient of bench in rock
P41-3 5. m height between benches
P41-4 0. m critical height for cancelling last bench and
the way of finishing cut 3)
For each type of rock excavation (given by various gradient of slope) can be
specified up to 5 benches.
Notes:
1. Such as a rock can be specified any layer
by its class number.
2. When two or more layers are specified
as a rock, than second and next layers
have got unit gradient P40-2. When both
assigned gradients of rock are the same,
both (pertinently all) rock layers are
taken as one.
3. Rules for ending of last cut layer, when
resulted level of last slope is dh </P41-4/ and dh>P41-3:
3.1. For P41-4 > 0: cut is extended until rock surface and there is a bench of
width P40-4 constructed.
RP51 Construction of corridor cross sections
26 User guide
3.2. For P41-4 < 0: standard slope of cut will be constructed from the upper
bench up to P41-3 and also bench of width P40-4 is constructed.
3.3. For P41-4 = 0 (program keys P41-4=P41-3): P41-3, bench width P41-1, cut
continues until rock surface and there is bench on it, width P40-4.
3.4. Warning, when is specified (by mistake) P41-4 < P41-3, program puts
P41-4 = P41-3 (as in case 3).
4. When the top layer is defined as rock, upper bench is omitted. Program
solves IP with surface of existing terrain without respect on pertinently
stripping of humus.
5. When P40-1 or P40-2 is equal to 0, vertical slope is performed.
6. When there is a softer layer (soil) below layer defined as rock, slope is
performed as standard cut without benches.
7. Rule for gradient of excavation on interface of two layers of rock: when
slope between benches intersects border category, it is construct gradient
according value valid for upper layer.
Scheme of ditch construction in rock cut is shown on following picture No. 9.
Picture No 9:
Ending of cut at dh < P41-3
Picture No 10a:
Ending of cut at P41-3 < dh < /P41-4/
Picture No 10b:
Construction of corridor cross sections RP51
User guide 27
Solution for case that top layer is defined as rock
Picture No 10c:
Cut slopes (50 - 52)
Meaning of individual items is following:
Side code: [L/ /R]
Space (blank) means validity of parameters for both sides
L validity of parameters for the left side
R validity of parameters for the right side of the roadway
Validity from
It is the chainage (km). Specified parameters are valid from.
Validity to
It is the chainage (km). Specified parameters are valid to.
Parameter Standard Dimension Meaning
P50-1
0 - Type of cut
P50-1 = 0 simple gradient according to ČSN
1), 2)
= 1 broken-slope, specified from foot to top
= 2 broken-slope, specified from top to foot
RP51 Construction of corridor cross sections
28 User guide
= 3 simple gradient specified 1 : P50-2
= 4 simple gradient in accordance with
optional value SV 2)
= 5 simple gradient specified by reference
point 4)
= 6 simple gradient given by level at side limit
point BO. Ditch solution without respect on
position of terrain and geology 3)
= 7 broken-slope according to interfaces of
geol. layers.
P50-2
0 - for P50-1 = 0 or 6 - does not make sense
m for P50-1 = 5 distance of reference point from
centreline
for others: fist layer gradient is 1 : P50-2
P50-3
0 - for P50-1 = 0 or 3 - does not make sense
m for P50-1 = 5 or 6 - elevation of reference
point
- for P50-1 = 7 - second gradient of layer
1 : P50-3
- for P50-1 = 4 - first optional level SV
m for P50-1 = 1 or 2 - first layer thickness
P50-4
2 - for P50-1 =0, 3, 5, 6 - does not make sense
- for P50-1 = 7 - third gradient of layer is
1 : P50-4
- for P50-1 = 1,2,4 - second layer gradient is
1 : P50-4
P51-1 (P52-
1)
0. m for P50-1 = 4 - other optional level SV
for P50-1 = 1,2 - other layer thickness
P51-2
(P52-2)
0 m for P50-1 = 1, 2, 4 other layer gradient
P51-3 (P52-
3)
0. m see P51-1
P51-4 (P52-
4)
0. m see P51-2
Notes:
1. According to ČSN are relevant next
gradients:
1.1. Up to 2 m depth 1: 2
1.2. Over 2 m depth 1: 1.75
Construction of corridor cross sections RP51
User guide 29
2. Depth HV is measured from point B (end of ditch area, it means either end
of bench or where is the end of slope behind ditch or bottom of ditch).
Depth HV must be given in ascending order.
When rock excavation prevents standard cut, is depth measured from point F (end
of last rock excavation bench).
3. In this case IP with terrain is not searched and corridor ends at point of side
limits BO, on elevation P50-3. Solution will be also performed in case that
points B or BO lay above terrain. Simultaneously cannot be specified code
P20-1 equal 6. Gradient is put immediately behind ditch from point B,
pertinently rock excavation is ignored.
It is allowed that point BO lays lower than point B. Value BO must exist in
file .SKR,(cross section arrangement) otherwise spare solution is used (P50-
1 = 0).
4. Slope is put from point B (in soil) or from point F (behind rock cut).
Scheme of solution for individual types of ditch:
1. Type of ditch (P50-1) = 0
Individual gradient 1:n in according to ČSN:
for HV < 2m n = 2
for HV >2m n = 1.75
Picture No 11a:
2. Type of cut (P50-1) = 1
Layers in gradients prescribed from foot to top
Picture No 11b:
3. Type of cut (P50-1) = 2
Layers in gradients prescribed from top to foot
Picture No 11c:
RP51 Construction of corridor cross sections
30 User guide
4. Type of cut (P50-1) = 3
Simple gradient - picture No 11 d
Picture No 11d:
5. Type of cut (P50-1) = 4
Simple gradient in accordance with optional depth
Picture No 11 e:
6. Type of cut (P50-1) = 5
Gradient given by reference point E
Picture No 11 f:
7. Type of cut (P50-1) = 6
Gradient given by level at side limit
Picture No 11g:
Construction of corridor cross sections RP51
User guide 31
8. Type of cut (P50-1) = 7
Broken-gradients on interface of geol. layers
Picture No 11h:
Ditch in cut (60 - 63)
Meaning of individual items is following:
Side code: [L/ /R]
Space (blank) means validity of parameters for both sides
L validity of parameters for the left side
R validity of parameters for the right side of the roadway
Validity from
It is the chainage (km). Specified parameters are valid from.
Validity to
It is the chainage (km). Specified parameters are valid to.
Parameter Standard Dimension Meaning
P60 - 1 0 - Compound code of type combination and the
way of bench position measuring
Three digit number meaning according to
RP51 Construction of corridor cross sections
32 User guide
following table:
1.digit 2.digit 3.digit
combination ditch bottom bench
elevation
0 A1 - C2 from roadway from bottom
1 B1 - C2 from formation from roadway
2 C1 - C2
3 A1 - A2
4 B1 - B2
Meaning of symbols A,B,C see pict.12,13,14
roadway means from roadway edge downward
bottom means from ditch bottom upward
formation means from formation downward
P60-2 0.4 m ditch depth from edge of roadway (from
formation according the compound code)
P60-3 3.0 - gradient of slope in front of ditch bottom 1 :
P60-3
P60-4 1.2 m horizontal projection of this slope
(can be avoided if gradient is assigned)
P61-1 0. m Ditch bottom width
P61-2 0.3 m bench elevation from bottom (from point A)
P61-3 3 - slope gradient behind ditch 1 : P61-3
P61-4 0.9 m horizontal projection of slope behind ditch
(can be avoided if gradient is specified)
P62-1 0. m bench width
P62-2 0 % bench gradient
P62-3 0 m position of endpoint of formation at bench
P62-4 1 - last (reverse) gradient of formation 1:P62-4
P63-1 0. m distance of drain from hard shoulder edge
P63-2 0.5 m drain width
P63-3 6 % reverse slope of formation behind the drain
P63-4 0. m thickness of formation at ditch bottom
Note: No value except P61-2 can be
negative.
Explanatory notes to ditch design:
1. Ditch bottom can be defined:
Construction of corridor cross sections RP51
User guide 33
1.1. In absolute terms (by level) on type 92 line
1.2. By relative depth with reference to roadway (point A)
1.3. By relative depth with reference to formation (point C)
Mode 1 is always preferred to Mode 2 and Mode 3
Mode 3 is applicable only for type A2, B2 or C2.
2. It cannot be foreseen whether the ditch bottom will appear above or below
formation (otherwise it would be impossible to design londitudinal gradient of
ditch bottoms by means of code 92). Therefore, every ditch type (A, B, C) is
possible construct in two variants according to pictures 12, 13 and 14. User can
specified only combination of those two types. First in case that ditch bottom is
above formation and second in case that bottom is below formation.
3. Only following combinations are possible:
3.1. When bottom depth from roadway edge is specified (P60-2 = x0x) or
bottom elevation specified by absolute height above sea level:
A1 - C2 code 00x
B1 - C2 10x
C1 - C2 20x
A1 - A2 30x
B1 - B2 40x
3.2. When bottom depth from formation is specified (P60-2 = x1x), only
two solutions are possible A2, B2 or C2 (bottom is always under formation).
Following codes are specified:
C2 code 01x , 11x or 21x
A2 code 31x
B2 code 41x
4. Elevation of bench behind the ditch can be defined as the last digit of the three-
digit code:
4.1. from ditch bottom (always defined as positive value), 3.digit = 0
4.2. from point A (positive upward, negative downward), 3.digit = 1
5. Position of drain (parameter P63-1) refers to hard shoulder outer edge (edge No
3 from file cross section arrangement file). If there were not specified any
special shapes in grading details, than it is simultaneously the last point of
grading details on roadway. Special shapes, if are specified on roadway, has no
influence on position of drain. In case that drain given this way should lie
nearer to centreline than last point of formation (includes special points on
formation), drain is moved at last point of formation.
Scheme of type and dimension needed to key-in are on pictures No 12, 13 and 14.
Picture No 12:
TYPE A1 – bottom above formation
RP51 Construction of corridor cross sections
34 User guide
TYPE A2 – bottom below formation
Picture No 13:
TYPE B1 – bottom above formation
Construction of corridor cross sections RP51
User guide 35
TYPE B2 – bottom below formation
Picture No 14:
TYPE C1 – bottom above formation
RP51 Construction of corridor cross sections
36 User guide
TYPE C2 – bottom below formation
For each combination all values shown in the drawings must be defined except the
values of P60-4 and P61-4, which are not needed, if the values of P60-3 or P61-3
and vice versa are specified. Values P60-4 and P61-4 are accepted to calculation
only if one of determining values P60-2, P60-3 respectively values P61-2, P61-3 are
not specified. Typical examples of solution and methods of definition are shown on
pictures No 15a till 15c:
Standard solution (no row in table is specified).
Picture No 15a:
Solution with ditch block
Picture No 15b:
Construction of corridor cross sections RP51
User guide 37
P60-2 = 0.5 P62-1 = 0
P60-3 = 3 P62-3 = 0
P61-1 = 0 P62-4 = 0
P61-2 = 0.166 P63-3 = 6
P61-3 = 3
Picture No 15c:
P60-2 = 0.5 P61-3 = 2
P60-3 = 3 P62-1 = 0.6
P61-1 = 0 P62-2 = 5
P61-2 = 0.5 P62-3 = 1.1
P63-3 = 6 P62-4 = 1
Top soil spreading (70)
Meaning of individual items is following:
Side code: [L/ /R] ditto
Validity from ditto
Validity to ditto
RP51 Construction of corridor cross sections
38 User guide
Parameter Standard Dimension Meaning
P70-1 0. m Topsoil spreading thickness
P70-2 0. m Overlapping length of topsoil spreading on
unpaved shoulder
P70-3 0. m Topsoil spreading thickness in central
reserve 1)
P70-4 0 m Elevation which define part of ditch depth
without topsoil spreading 2)
Values P70-1 and P70-2 are specified positive.
Notes:
1. Width of topsoil spreading on central
reserve is taken from cross section
arrangement see SKR file.
2. Meaning of value P70-4:
P70-4 = 0: topsoil is spread everywhere
on ditch
P70-4 > 0: topsoil is not applied up to
the elevation P70-4 from bottom (picture 16a)
P70-4 = -1: topsoil is not applied on part from bottom to level of inner
bench edge
P70-4 = -2: topsoil is not applied on part from bottom to level of outer
edge of roadway.
Rule for topsoil spreading of ditch in cut in soil
P70-4 = 0
Picture No 16a:
Does not depend on formation ending
Construction of corridor cross sections RP51
User guide 39
P70-4 > 0
Picture No 16b:
P70-4 = -1
Picture No 16c:
70-4 = -2
Picture No 16d:
Rules for topsoil spreading of ditch in rock
Rock excavation slopes is never covered with topsoil, filling up shoulder yes (with
respect to given P70-4)
Picture No 17a:
Rules for topsoil spreading of foot ditches
RP51 Construction of corridor cross sections
40 User guide
P70-4 = 0 topsoil spreading continuously
Picture No 17b:
P70-4 = -1
Picture No 17c:
P70-4 = -2 works in the same way as for P70-4 = -1
Transition parts, rounding, subgrade improvement (90)
Meaning of individual items is following:
Parameter Standard Dimension Meaning
P90-1
0 Rounding slopes solution:
0 = no rounding
1 = only in embankment segments
without foot ditches
2 = only in cut segments
3 = in both cases stated above
4 = also at the end of foot ditches below
embankment. (All edges will be
rounded.)
P90-2 Drains in fill segment?
Construction of corridor cross sections RP51
User guide 41
0 = no drains in fill
1 = Drains in fill always
P90-3 0 - in transition parts between cut and fill is in
problematic cases road solved as:
0 = fill according rule
1 = cut according rule
2 = always as cut
-1= always as fill
P90-4 5. m critical distance for fill solution of fill
solution
Note: All values are specified positive.
Edges rounding:
According to ČSN 73 6101 rounding of cut
and fill edges are performed at top and foot of
slope. According to examples in MD ČSR
(VL2, 95.04) there are several modes, how to
perform rounding is explained:
1. According to VL 311.01 rounding will
be performed only in topsoil layer that will be
chamfered into curve of length max. 2.00 m
on heal or on edge. Range of topsoil stripping does not change unlike to case when
rounding is not performed.
2. According to VL 301.03 and 301.04 width of topsoil stripping and topsoil
spreading is increased by length of tangent curvature (max. 2.0m). Resulting shape
is the same in both cases, only calculations of cut-offs are influenced, firstly topsoil
stripping and topsoil spreading. In second case are costs on both elements increased
a lot. In program RP51 parameter P90-1 (code of rounding type) is updated. Old
versions of Roadpac did not use rounding (code P90-1 = 0).
This method is also used at rounding of type 1. Chamfer has no influence on topsoil
spreading and topsoil stripping cut-offs volumes. At drawing sections by program
RP53 are those rounding ignored. For computations of land acquisition range the
rounding must be respected in assignment of adequate distance of bench marks.
At code P90-1 greater than 0, the curvature is designed according to item 2.
Practically it is performed by inserting of 5 points (broken polyline on slope
simulated curve) instead of slope IP with terrain.
It will be used in cut-fills of topsoil spreading and stripping, it is also drawn in
cross section drawings (Attention on specified elevation and slopes description,
remedial points are given by elevations and also by slope description). During land
acquisition range calculation is specified distance of bench marks from end of
curvature.
RP51 Construction of corridor cross sections
42 User guide
Solution of transition part:
Position of point B and C determine if is cross sections in cut or fill (see picture
18a/b).
If both points are located above existing terrain, it is clear fill. When are both points
below terrain, it is cut.
Transition part becoming in case than one of the points is above terrain and second
below existing terrain.
A) Both solutions are possible:
Case 1.
Picture No 18a:
Picture No 18b:
Solution for P90-3 = 0 Solution for P90-3 = 1
Performs fill and foot ditch Performs ditch and cutting
according to assignment. according to assignment
Case 2.
Picture No 18c:
Drains in transition part solution:
Code P90-2 is used in following cases:
P90-2 = 0, No drains will be constructed in fill solution in transition part
P90-2 = 1, Drains will be always constructed in fill solution in transition part
Construction of corridor cross sections RP51
User guide 43
Explanatory notes of transition part solution:
Picture No 18d:
Solution for P90-3 = 1 Solution for P90-3 = 0
Performs fill and foot ditch Performs ditch and cutting
according to assignment according to assignment
B) No solution is possible:
Case 1.
Picture No 19a:
Picture No 19b:
Solution for P90-3 = 0 a x < P90-4 (SPEC 1)
Value P30-1 is corrected on 2 (foot ditch is not performed)
Solution for P90-3 = 0 a x > P90-4 (SPEC 2)
Picture No 19c:
a) P30-1= 0, 1, 5 (type of foot ditch)
Slope AC is performed in accordance with parameters valid for fill. Dimensions of
foot ditch referring to assignment (as if P31-4 = infinity and P30-1 = 1.
RP51 Construction of corridor cross sections
44 User guide
Picture 19 d:
b) P30-1= 3 or 4 (foot ditch type).
Slope AP is performed according to parameters valid for fill. Dimensions of foot
ditch according to assignment (as if P31-4 = infinity and P30-1 = 4).
Solution for P90-3 = 1 (SPEC 3)
Picture No 19e:
Solution to point B is performed according to parameters valid for ditch, solution
behind point B according to parameters for fill at opposite slope and gradient P62-2
as far as intersection with terrain at adjacent slope.
Case 2.
Solution is at all options the same as at case 1. Special case when cutting between
point C and other construction intersects terrain. Construction is ended in point D.
Picture No 19f:
Picture No 19g:
Construction of corridor cross sections RP51
User guide 45
Code P90-3 new option.
When points A and B are closely in Cut or Fill position, it means closely out from
transition part, program will accept solution according selected options:
P90-3 = 0, Like transition as fill
P90-3 = 1, Like transition as cut
P90-3 = 2, Always as cut
P90-3 = -1, Always as fill
Code P90-3 and value of critic distance P90-4 are used in following cases:
1. Point B appears below terrain and simultaneously point C above terrain. In
this case both clear fill and clear cutting solution are possible. According to
value P90-3 actual variant is performed.
2. Point B appears above terrain and simultaneously point C below terrain. In
this case no clear solution is possible. According to value P90-3 actual
variant is performed.
Note: If the level of the ditch bottom has been defined (code 2), it must be
respected in accordance with the same rules as those applicable to
clear embankment or clear ditch.
Subgrade improvement layer (93)
Improvement layers in fill is constructed as upper layer from final selected and well
compacted material, or in cut, where upper bottom ground layer has not required
quality and must be replaced due to bearding capacity of the ground. In transition
segments can both cases merge from fill to cut and vise-versa.
RP51 Construction of corridor cross sections
46 User guide
Specification of subgrade improvement layer
On tab (90) was placed table for improvement layers depths specification in
segments added. Different depth for cut and fill should be specified.
These values can be specified by the standard way. On one row with code 511 are
in file V51 stored parameters P93-1 depth of improvement layer in fill and P93-2 in
cut. Column for side (R/L) specification is always blank. Parameters are valid for
both sides of cross section. Both values must be always specified, however in any
segment should be zero depth specified.
Tab Cut-offs or filling (91)
Meaning of individual items is following:
Parameter Standard Dimension Meaning
P91-1
0 - 0 ... neither Off-cut nor filling are not
performed
1 ... road construction with a cut type of ditch
is in cut - picture 20 a, b
2 ... road construction with a cut type of ditch
is in fill - picture. 20 c, d
3 ... road construction with a foot ditch is in
cut - picture. 20 e, f
4 ... ... road construction with a foot ditch is in
fill picture 20 g
P91-2 5 +-% gradient from point B to terrain (+) is
upwards,( -) is downwards
P91-3 1.5 - gradient of slope adjacent to shoulder edge is
1 : (P91-3); it is defined only if P91-1 = 3 or 4
- picture 20 e, f, g
P91-4 0.75 m elevation of slope adjacent to shoulder edge; it
is defined only if P91-1 = 3 or 4 see picture 20
e, f, g
Construction of corridor cross sections RP51
User guide 47
Notes:
1. For P91-1 = 1 and P91-1 = 2 the cut type
ditch is created according to code P60-x,
P61-x, P62-x and P63-x (see picture 20 a, b,
c, d).
2. For P91-1 = 3 foot ditch is created according
to type P30-1 = 1 and parameters from code
P30-x and P31-x (picture 20 e). If the
parameter P30-1 = 2 is defined, the
suppression of the foot ditch is respected
(picture 20 f).
If value P30-1 is different, it is automatically corrected to P30-1 = 1.
3. For P91-1 = 4 a fill with the foot ditch of type P30-1 is performed.
4. In cases 2 and 3 is performed a simple fill slope defined by parameters P91-
3, P91-4 respective. Otherwise are meaningless.
Picture No 20a: Picture No 20b:
Picture No 20c: Picture No 20d:
RP51 Construction of corridor cross sections
48 User guide
Picture No 20e: Picture No 20f:
Picture No 20g:
Tab Specified ditch levels (92)
Meaning of individual items is following:
Parameter Standard Dimension Meaning
P92-1 0. m bottom level of ditch at the beginning of
specified segment
P92-2 0. m bottom level of ditch at the end of specified
segment
Notes:
1. If chainage of the end of the section
equal 0 and also the level of the ditch
bottom at the end equal 0 means that is
defined level of the single ditch bottom
and P92-1 is relevant for one cross
section only. Its chainage is specified as
beginning chainage of segment.
Construction of corridor cross sections RP51
User guide 49
Otherwise the level of the ditch bottom within the specified section is obtained
by linear interpolation. If the ditch terminates at the end of the segment, its
chainage must be defined.
2. When there are not conditions for ditch creation (e.g. embankment and P30-
1=2), command of code 92 is ignored and program reports an error.
3. According to pavement the position of prescribed level of ditch bottom can
be as follows:
3.1. above roadway edge; than is command code 92 ignored and program reports
an error
3.2. Within roadway edge and formation; than the formation is performed
according to parameters valid in certain section (only P60-1 = 1 is replaced
to P60-1 = 4) and above it is created curb with given bottom level.
3.3. Below formation; deep ditch is performed and formation is ended on its
side.
Rules for solution of cross section according to position prescribed bottom
level and referring to pavement are valid also for passage parts between
excavation and embankment..
Emergency announcers
Emergency announcers are established in area of shoulder, thus construction of road
bed in their proximity has no continuity with Cross section arrangement file, nor
with program RP43. Therefore it is convenient, that all changes related with
specification of emergency announcers are
implemented to program RP51 and SPR file. Still
it is necessary to reflect further results in program
RP53 (drawing of cross-sections), RP71
(calculations of building volumes) and in drawings
of layouts in ROADCAD system.
Comparison of sample sheets of safety fences made
of steel and made of concrete results in conclusion
that island for emergency announcer installation
can be always modeled as widening of shoulder in
RP51 Construction of corridor cross sections
50 User guide
shape of trapezoid and that its shape can be always defined by up to 6 parameters
for both sides.
Dialogue program SI51C will set defaults that correspond to standard steel safety
fence. User will specify only chainage S1 and side (L, R) and program will offer
defaults on a new row, and other parameters, if they are atypical, parameters can be
modified by user. For standard safety barrier on single carriageway road are defaults
(by measurement from sample list): S2 - S1 = 46.8 m, P1 = 4.7 m, P2 = 19.9 m, P3
= 2.15 m, P4 = 1.40 m
Comment: in opposite direction you also specify S2 > S1 (like with all
parameters). But P1 and P2 values are always plotted in direction of travel, thus in
opposite direction - from S2 chainage in direction towards S1!
This way of coding has an advantage that it is reflected during generation of cross
sections in all sections in sector between S1 and S2 and the program will easily
calculate required width of shoulder for every position of section on a basis of
entered parameters.
In area between chainage S1 and S2 will be nominal width of shoulder (marked by
dashed line) increased by widening, which will be linearly interpolated between
values: zero, P3, P4 and zero.
For precise capturing of shape of road bed in closeness of emergency announcer,
program RP51 will generate, besides standard sections in regular chainage, another
4 sections in chainage S1, S1+P1*0.001, S1+P2*0.001 and S2 (inversely in
opposite direction). For such sections is defined neither surfacing nor terrain, but
both can be interpolated from closeness sections of SKR and STR files. Once the
sections are constructed and stored in SPR file, all follow-up programs will respect
them; thus they is used for layout design, building volumes and drawings SI53 -
there you can specify by code, whether to draw all sections or just so called
"tabular", i.e. with regular step specified in 001 and 002 data. Naturally, such
additional sections are not included among tabular ones.
If a new section merges with some of existing ones with tolerance less than 4.9 cm,
no new section will be created and code of announcer (value 1024 in WP code) will
be added to existing code of WP section
Specification checking:
- Two adjacent announcers on the same side may not overlap (in opposite
direction they can)
- P2 > P1, neither P1 nor P2 must be smaller than S2 - S1
- S2 > S1 (applies to all parameters in general).
Construction of corridor cross sections RP51
User guide 51
- S2 - S1 is at least 1 m (the function will be available also for other
modifications, e.g. stacking ground of spreading materials or other construction -
e.g. for traffic lights
- P1 is at least 0.1 m and S2-S1 - P2 is also at least 0.10 m. In the event of
widening by step the program will thus generate no section pairs in identical
chainage, but section pairs in 10 cm distance. Even in this case only one section
may be identified to existing section - the closer one.
- widening of P3 and P4 is positive and up to 100 m as a maximum (again
possibility to use it for other purposes, e.g. parking place or operational areas).
Limitation
Four new sections will be generated only in mode of creation of Cross section
arrangement file and terrain files (Code1 = 1); in correction mode (Code1 = 3) there
will be applied increased widening of shoulder in sector between S1 and S2, but
further sections will not be created. This mode does not read Cross section
arrangement file, but it generates Cross section arrangement reversely from SPR file
and in such events the interpolation of surfacing would be enormously complex.
Besides that, in this mode the program copies all sections situated out of specified
correction area.
In mode of selection of sections according to list (Code3 = 1) the program creates
only such new sections that fall in area delimited in a list.
Parameter Standard unit meaning
P13-1 4.70 m Distance of section with widening P13-3
P13-2 19.90 m Distance of section with widening P13-4
P13-3 2.15 m widening of unpaved shoulder P3
P13-4 1.40 m widening of unpaved shoulder P4
Construction of cross section according to standard parameter values
Picture No 21a:
RP51 Construction of corridor cross sections
52 User guide
Picture No 21b:
Picture No 21c:
Picture No 21d:
4. Pavement construction layers specification
Construction layers was previously specified independently of program SI51without
any connection between corridor cross section file and next programs of system
which deals with construction pavement layers volumes etc.
Now program figure up its shape in each cross section and store points on pavement
construction layer edges to new type file align. SPR. Programs RP45 a RP47 using
this new feature for creating setting out tables. Program RP72 creates volume and
areas calculations afterwards.
Construction of corridor cross sections RP51
User guide 53
Up to 7 construction layers + subgrade can be specified. Each layer is defined by
name, thickness of layer, and by values which define shape of layer cap. It means
values of offset and gradients of proper layer.
For specification of layers is principle of templates usage. Templates selected for
current task by user are always stored into input data file v51. Alongside it is
possible these templates inserted to dBase of templates or load to data from dBase.
Program RP51 does not work with dBase on line bat with copies of templates only.
Range of central reserve samples
Pavement
For specification of pavement layers will tables placed on Tab Pavement –
construct intended.
At the right side of tab is placed table of templates localization along alignment.
Templates of single carriageway roads are valid for both sides of pavement
construction. For roads with central reserve must be specified templates separately
for left and right side of carriageway. Templates should be different on the left and
right side in number of layers and its shape.
Side L/ /R Column are blank if pavement construction is on the both sides of
roadway in case of carriageway with or without central reserve concurrent.
RP51 Construction of corridor cross sections
54 User guide
Meaning of individual items is following:
Chainage of validity from (km) Chainages must be concur on both sides and
segments may not overlapping itself. If no template will be in any segment specified
no construction will be stored in corridor cross section file in this segment.
Chainage of Validity to (km) ditto.
Template name Up to 10 characters can be assign as name of template.
Names of template must exactly correspond to names stored in list of used
templates. (See next picture.)
Data editing of templates in input data file
For data editing serve next table
Meaning of individual items is following:
Template name Up to 10 characters can be assign as name of template.
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Subbase 1-6 ending type It can be specified by values from 1 to 6. If user
click on cell (Eye) header “See
types” of proper table the scheme of
all six end-capping types motives are
visible.
Layers count . A count of layers is specified including subbase layer
(At most 7 layers can be specified + subbase, it means total 8)
Roadway Type Specify dual carriageway or single carriageway roadway. One of
possibility is chosen.
See template. . If user click-on cell (Eye) header “See template” of proper table
the shape of template will be displayed. Table is inaccessible.
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Table of pavement layer specification
Table is ready to accept specification of 8 layers. Lower layer is always subbase
layer and it has different properties during construct process according Subbase
cap code.
Name of layer can have up most 8 characters, is used for description of layers in
listings of subsequent RP45, RP47 a RP72 programs.
Layer thickness (m) thickness of proper layer must be specified except subbase
layer thickness.
Edge offset (Neither adjacent to the left/ right side of carriageway or to the
shoulder side or central reserve side respectively). Offset is measured
horizontally from the origin point:
The origin point is the inner edge of carriageway in case of road with
central reserve and outer edge of carriageway.
The origin point is the left edge of carriageway in case of road without
central reserve and right edge of carriageway.
Layer gradients are specified in a way 1: x, Enter value x
By buttons “Open dBase of templates”, “Add template to dBase”, "Select
template from dBase" and “Save (s) template dBase” user can maintain his input
data and dbase.
Open dBase of templates. This is intended for modification of templates in dBase.
Before using of this editor user must open dBase Standard core dBase is placed
after installation at directory ....roadpac\sablony\pavement.dbr User can establish
by “Save (s) template dBase” its own dBase in any directory on his computer.
After dBase opening it is possible to click on button "Select template from
dBase". The proper form „List of templates“ is shown afterwards. In the left side
of form is placed listbox filled by templates. After click on any of them in the list is
selected template drawn in picture and table is load to program.
This table is intended for visualization of selected templates no modification is
permitted. For specification of new templates and modification of it is intended
basic tables placed on Tab, template is copied to it by click on button "Fill table".
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From the tab “Pavement – dBase” is no direct access to input data V51. Templates
transmission from opened dBase to input data V51 is accomplished on tab
Pavement-construct only
4. DESCRIPTION OF OUTPUT LISTING
The output listing is generated in the course of the computation in the 'road' .L51
file. Its printing can be controlled from the main menu.
Output listing includes protocol about current calculation inclusive error reports.
Other part of output listing is given by requirements stated in control data:
Small listing contains basic data about cross sections, which are included in files
CORRIDOR CROSS SECTIONS. Signs used in small protocol are explained by
this protocol itself.
Full listing is comment listing of detailed data about all cross sections. Coordinates
of terrain, surface of roadway, pavement and formation, data about topsoil
spreading, data about position of ditches in cut or fill, side limits are printed etc.
5. Warning messages
The program differentiates between fatal errors, which usually cause program
termination with unusable results and formal errors that are handled by alternate
solution. Fatal errors are marked by *** in reports and formal errors are marked by
**. The following table contains list of warning messages and comments to
alternate solution:
In the first part of program the input data are controlled. In this part fatal errors
appear that construction of cross sections is not done and file SPR is not created.
In the second part of program cross sections are designed continuously according to
chainage. In this part the fatal errors usually do not occur, program try to created
spare solution everywhere, in case of fatal error the cross section is omitted. In
protocol are simultaneously written cross section chainage, number of indicated
errors at its creating and summary of error reports. Maximally can be indicated 19
reports, if there is more error than 19 in current cross section it is taken are fatal
error and section is not inscribed to SPR.
In second part of program are errors signed by stars and by code.
** L error in left half of cross section
** P error in right half of cross section
** S error in central reserve
** G error in terrain and in geology
The following table contains list of error messages and comments to alternate
solution:
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58 User guide
Text of message Alternate solution
Errors in control data part of program:
*** Leading line is missing * 51
*** Inaccessible type of leading line: aaa
** First line ignored
*** Between leading data read no marked line *
*** Premature end of data
*** Inaccessible code of function number = nn
*** Error while reading of working file
*** Inaccessible line type
** Premature data end, line 999 is missing
*** Line read with error, ignored: (line deccription)
*** Vertical alignment file is empty
*** Error in writing to working file
** Terrain from km n.nnn is missing to the end of road
** Terrain in km n.nnnn is missing
** Cross section in km n.nnnn before beginning of road
** Next cross sections with chainage greater than km n.nnnn
behind road end
** Negatively specified parameter used positively
*** Inacceptable code value
** Inacceptable code combination P20-1 a P20-2: P20-1=0
** Inacceptable code combination P20-1 a P20-3: P20-1=0
** Inacceptable code combination P50-1 a P50-2: P50-1=0
** Inacceptable code combination P50-1 a P50-3: P50-1=0
** P60-3 i P60-4 equal 0 - entered standard
** P61-3 i P61-3 equal 0 - entered standard
*** Line read with error, ignored: (line description)
** Correction in km nn.nnnnnn is out of road range, ignored
** Inacceptable parameter code
*** Inacceptable marking of side validity
** Parameter validity nnnnn out of road range
** Parameter n.nnnn n.nnnnn is valid before beg.of road
** Parameter nn.nnnnnn nn.nnnnnn is valid behind end of road
*** More than 100 parameter changes
*** Upward of 100 modifications segments, ignored
*** End chainage is smaller than beginning chainage
** Specified line disagree with code 1 and 3: (line description)
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** Modification segment out of road range, ignored
** Ditch segment nnnn out of road range,ignored
*** More than nnn parameter changes
*** More than nnn ditch specification
Errors in creation of cross section part:
*** In cross section was indicated more than 19 errors
** Ditch bottom above bench, bottom elevation ignored
** Ditch bottom above terrain, bottom elevation ignored
** Large dist. ditch elev.-terrain: changed P30-4,P31-4
** Construction overlaps terrain for more than 50 m, limited
vertically
** Ditch bottom above terrain, bottom level ignored
** Large dist. ditch elev.-terrain: changed P30-4,P31-4
** Level of fill determine point above pavement:P20-1=0
** Ditch cancelled - unreal solution
** Terrain extended on the left
** Terrain extended on the right
** P11-1 = 1 and P20-1 is not 0
** Soil is specified deeper than rock
** P20-1 = 6, but side limit is not specified
** Entered bottom level not correspond. with ditch type
** P50-1 = 6, but side limit is not specified
** Outside drainage behind foot ditch
** Codes P20-1 and P50-1 equal 6, corrected P20-1
** Level at side limit is above roadway
** P20-1 = 6 and side limit inside of pavement
** Formation incorrectly to pavement
** P50-1 = 6 and side limit before the end of ditch
** Construction overlaps terrain for more than 50 m, vertically
limited
** Level of ditch bottom above roadway
** End of formation before ditch bottom
** Slope of ditch in cut changes on 1:3
** Formation ending before roadway edge
** Incor.solution of form.shape under ditch, put type B
** Shape of formation ending under pavement, put type C1
** Shape of formation ended before ditch bottom
** Determined point under pavement - P20-1 = 0
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** Elevation determined point above pavement - P20-1 = 0
** Bottom ditch above roadway - given level ignored
** Formation above pavement - grading details copied
** Construction overlaps terrain for more than 50 m, vertically
limited
** Determined point before ditch (rock)- P50-1 = 0
** Excavation acc. to no specified geology - P50-1 = 3
** Construction overlaps terrain for more than 50 m, vertically
limited
* Used condition acc. to image 19d: ditch bottom 0.2 m
** Construction overlaps terrain for more than 50 m,vertically
limited
** Ditch bottom above bench - given 92 level ignored
** Construction overlaps terrain for more than 50 m,vertically
limited
** Filename of drawing is missing
** Interval of parameter for c. reserve has not identical chainage
for left and right side nnnnn standard was used
** Incorrectly specified parameters nnn for solution of
formation top part nnn standards were used
** Specified widths of central reserve overlap nnn pavement
edge point nnn replaced by standard solution
** Formation parameters of central reserve nnn are unsuitable
nnn formation horizontal, without drainage
** Max. number of points on roadway exceeded
** Max. number of points on construction exceeded
** Off-cut (fill) can not bee constructed nnn parameter 91
ignored
** Codes P20-1 and P50-1 equal 6, corrected P50-1
*** Terrain in the place of probe local. is not defined
*** In the place of probe local. terrain under 1.interf.
*** 1. layer of geology thiner than stripping of topsoil
*** Indicated error invalid number
*** Indicated error denormal number
*** Indicated error division by zero
*** Indicated error overflow
*** Indicated error underflow
* Indicated error in exact precision
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