CalculuxRoad

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Specify and calculate standard road lighting schemes

On basis of – Lighting requirements (Lav, Eav, Uo, U1, TI, SR)

Calculux Road

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Obs 1

Obs 1

Obs 2

Obs 2 CEN 13201

In the transverse direction the observer shall be positioned in the centre of each lane in turn.

General Remarks

4

LP = Qo x EP

Qo: reflection coefficient of the road surface

Qo is defined by CIE depending on type of road surface (Road reflection tables)

Asphalt CIE R3with Qo=0.07 used in the M.E.

E, L and Qo

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Specify and calculate standard road lighting schemesOn basis of – Lighting requirements (Lav, Eav, Uo, U1, TI, SR) – Preset standard grids (CEN)

Calculux Road

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w

s

3w60m

Default observer position: Middle of each lane60m ahead of the road section

Luminance calculation and measurementsCIE method

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distance60 meter

distance

max.100m

height of observer 1.50m

2 luminaires in a same row are

enclosed

Observer in the center

of each lane

LUMINANCE : Field of calculationCEN method

8

Road ≤ 6.02

Grid Method1

Grid Method2

Grid Method3

Grid Method4

Grid Method5

Grid Method6

Grid Method7

Grid Method8

Road > 6.02

CEN Luminance

CEN Illuminance

LUMINANCE : Field of calculationGrids / Consequences on Calculux Road

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In the longitudinal direction : D = S / ND : spacing between points in the longitudinal direction, in metres

S : spacing between luminaires in the same row, in metres

N : number of calculation points in the longitudinal direction with the following values:

for S ≤ 30 m, N = 10;

for S > 30 m, the smallest integer giving D ≤ 3 m The first transverse row of calculation points is spaced at a distance D/2 beyond the first luminaire (remote from the observer).

Spacing of the points in a driving lane :

In the transverse direction : d = WL / 3d : spacing between points in the tranverse direction, in metres

WL : width of the lane, in metres

The outermost calculation points are spaced d/2 from the edges of the lane.

LUMINANCE: Position of calculation points

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LUMINANCE: Position of observer

• Observer is located at the centre of each lane• Observer´s eye is 1,5 m above the road level

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Calculux Road 6.1 Vs Calculux Road 5.0b

Road > 6.02

Road ≤ 6.02

Operative value of average luminance is thelowest calculated

Operative value is the average value of the calculated average luminance per lane

New Old

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Road ≤ 6.02

Road > 6.02

Consequences on Calculux Road 6.1

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.Lmin

Lave

Luminance uniformities: Uo and Ul

Overall uniformity (Uo)Uo = Lmin/Lave

Lmin is the lowest luminance occuring at any grid point in the field of calculationIt is calculated for each observer, the lowest value is considered

Lengthwise uniformity (Ul)Lmin Lmax

Ul = Lmin/Lmax

Lmin and Lmax are for points on the centreline of each lanethe lowest Ul value is considered

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Road ≤ 6.02

Road > 6.02

Consequences on Calculux Road 6.1

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Obs1

Calculation fieldOperative value of TI shall be the highest value among observers.

Obs2height of

observer 1.50m

Observer in the enter of each lane

Threshold Increment TI

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Road > 6.02

Road ≤ 6.02

Consequences on Calculux Road 6.1

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Surround ratio: SR

SR = Ekirb / Eroad

Old method SR left SR right

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EN 13201SR = (E1+E4) / (E2+E3)CIE 115SR(1) = E1/E2 SR(2) = E4/E3

For dual carriageways, both carriageways together are treated as a single carriageway unless they are separated by more than 10 m.

The width of all four strips shall be the same, and equal to 5 m, or half the width ofthe carriageway.

Location of strips with width of strip equals 5 m :

Surround ratio: SR

6

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The width of all four strips shall be the same, and equal to 5 m, or half the width of the carriageway.

Location of strips with width of strip less than 5 m because width of carriageway is less than 10 m

EN 13201SR = (E1+E4) / (E2+E3)

Surround ratio: SR

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Road ≤ 6.02

Road > 6.02

Surround ratio SR In Calculux scheme editor

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Calculux Road

Specify and calculate standard road lighting schemes

Optimize individual and multiple schemes

Perform lighting calculations not directly related to the main road (e.g. on a footpath or the front of a house)

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Centre of the light emitting area(main axis of luminaire)

Luminaire is positioned withX, Y, Z coordinates of the

Luminaire positioning: XYZ coordinates

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∧

C = 270°

�= 180°C = 0°

C = 90°C = 180°

�= 0°

�

�= 90°

C + 20° plane

Plan of Maximum Beam intensity

axis of rotation

+ZRotation: + value anti-clockwise

+

axis of tilt

Tilt90: + value towards +Z

+

-XBy default:• Lamp axis parallel to X axis• Bracket in C=270o plan roadside

kerbside+Y

Location and orientation

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• Single-Sided (left or right)

• Staggered

• Opposite

• Twin Central

• Twin Central and Opposite

Lighting arrangements

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Single Sided Opposite CatenaryStaggered

Wroad ≤ Hpole Wroad ≥ 1.5 x Hpole Hpole ≤Wroad ≤ 1.5 x Hpole

Lighting arrangements

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Angle of Tilt: 0, 5, 10 or 15o

Overhang

Mounting Height

Mounting details

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By:

• Positioning of poles

• Using different lamp colours

• Use of high masts

Visual Guidance

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0.7SS 0.7S

Preferred poles location

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S

1/2S

Preferred poles location

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1/2 S

S

Preferred poles location

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proper arrangement and positioning of poles

Single sided left preferred to right for a curve to the right

Opposite Arrangement preferred to staggered for a curve

√ X

√ X

Creating visual guidance

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using different lamp coloursHPL-N, SON, SON-Comfort, SOX-E

Creating visual guidance

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Use of high masts (>25m)

Creating visual guidance

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+Accumulation of dust and dirt in the bowl(IP rating of optical compartment)

85%

Lamp type:SON(-T) (Plus) /150/250/400W

Lumen depreciation of the lamp

Inevitable and max. 85%throughout lifetime of SON(-T) (Plus)

Higher IP (optical compartment)→ Lower the dirt factor

↓Higher the M.F.

Calculux Road: Maintenance factor

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Example1

– Dual carriageway

– Width: 11.25m (with 3 lanes)

– Central reservation: 5m

– Twin central arrangement– Post top mounting:

• Tilt 90: 5o

• Overhang= - 2 (-2.5m + 0.5m = - 2m)

– Luminaire: • SGP551 / 400W SON-TP GB

Lighting requirements

CIE Class M2

– Lav ≥ 1.50 cd/m2

– Uo ≥ 0.4

– U1 ≥ 0.7

– TI ≤ 10

– SR ≥ 0.5

SON-T: 48,000 lumenSON-TP: 55,000 lumen

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Example 2

– Single carriageway

– Width: 7.30m (with 2 lanes)

– Single sided left arrangement– Post top mounting: Tilt 90 = 5o

– Overhang: - 0.5– h=10m– S=40m

– Luminaire: • SGP551 / 150W SON-TP GB

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•

– Dual carriageway

– Width: 11.25m (with 3 lanes)

– Central reservation: 2m

– Pole height: 16m (Post top)

– Overhang: –0.5

– Tilt90: + 5o

– Arrangement: Twin central

– Spacing: 62m

– Luminaire:

SGP551/ 400W SON-TP GB

40m

24m

(30,24)

Parking area

Example 3

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P1 , 2X=30m

Y=8m

24m

40m(30,24)

Option1 2x Line arrangements

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Design steps:

P2 , P1

Line 2: P2(29.5 , 8, 10)

X=30m

Y=8m

Line 1: P1(30.5 , 8, 10)

1- X,Y of the 1st luminaires

B: Define parameters of the 2 lines

2- Number of luminairesper line

- 3 per line

- 3 per line

3- Spacing between luminaires

- S=16m

- S=16m Luminaire: Rot 180o

C: Define parameters luminaires

Rotation Tilt90

Luminaire: Rot 0o , Tilt90=5o

, Tilt90=5o

Option1 2x Line arrangement

24m

40m

A: Draw the field and setthe coupling grid

(30,24)Centre

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Option 2: 1x Line arrangement

Line 1: P1(42, 8, 10) - 3 per line - S=16m

Luminaire: Rot 180o, Tilt90=5o

X=42mP1Y=8m

40m

24m

•(30,24)