DEPARTMENT OF CE

Roadway condition survey

COURSE TITLE : TRANSPORTATION ENGINEERING SESSIONAL II COURSE NO : CE 452

COURSE TEACHER : MINHAJUL ISLAM KHAN

NUZHAT AZRA

GROUP 2Group members Student ID

ZOBAER SALEHEEN SHAURAV 11.01.03.100

IMRAN UDDIN MAHMUD 11.01.03.106

SIAM MOHAMMAD AZMIH 11.01.03.107

ZAKIRUL ISLAM 11.01.03.108

MD. KAMRUZZAMAN MAHFUZ 11.01.03.109

MAKSHUD AL SHABIB 11.01.03.110

KAZI GOLAM MOSTOFA 11.01.03.116

MD. NAZMUL ISLAM 10.01.03.103

ABDULLAH IBNE FARUK 10.02.03.105

PRESENTATION OUTLINE

1. INTRODUCTION

2. OBJECTIVE OF STUDY

3. SCOPE OF STUDY

4. METHODOLOGY

5. DATA COLLECTION

a. GEOMETRIC CONDITION

b. OPERATION CONDITION

6. DATA ANALYSIS

7. RECOMMENDATION

INTRODUCTION

A ROADWAY CONDITION SURVEY IS DONE BY VISUAL

INSPECTION OF A ROADWAY. A ROADWAY CONDITION SURVEY IS

THE PROCESS OF COLLECTING DATA TO DETERMINE THE

STRUCTURAL INTEGRITY, DISTRESSES, SKID RESISTANCE, AND

OVERALL RIDING QUALITY OF THE PAVEMENT.

OBJECTIVE OF STUDY

To draw detailed layout of roadway and intersection.

For qualitative observation of potholes, elevated

or depressed manholes, speed breakers etc.

To determine loss of effective width at different

locations due to loading or unloading, illegal

parking, construction utility etc.

SCOPE OF THE STUDY

DESIGN AND PLANNING PURPOSE

IMPROVEMENT PURPOSE

DYNAMIC TRAFFIC MANAGEMENT AND PRIORITY SCHEDULE

ACCIDENT RATE COMPUTATION

METHODOLOGY OF ROADWAY CONDITION SURVEY MANUAL METHOD WALKING SURVEY

WINDSHIELD SURVEY

WALKING AND WINDSHIELD SURVEY

AUTOMATIC METHOD VIDEO CAMERA

DISTANCE MEASURING INSTRUMENT

GIS METHOD

AUTOMATED ROAD ANALYZER

MANUAL METHOD

WALKING SURVEY

• Done by walking down by the side of

the pavement by a group of people.

• Provides the most correct data.

• Time consuming.

ABDULLAH RECORDING DATA

WINDSHIELD SURVEY

• Systematic observation is made from a moving vehicle.

• Useful when particular section of road segment is observed.

• Time saving.

Survey process by Windshield method

WALKING AND WINDSHIELD SURVEY

• Better method than the

single application.

• Achieve maximum

pavement data and

complete pavement

surveys.

• Require both technological and human activity.

Picture of walking and wind shield survey

AUTOMATIC METHOD

VIDEO CAMERA

• Observe service

condition.

• Generally attached on

the post in the street.

• Doesn’t work at night.

Roadway condition survey using street camera

AUTOMATED ROAD ANALYZER

• Technically complex vehicle.

• Attached with sensor machine.

• Take photo as well as distance.

Road way condition survey by vehicle

DATA COLLECTION

• Observation – Roadway Condition Survey• Method – Manual • Equipment – Camera, Tape etc.• Location – Panthapath to Russell Square • Date - 14.12.2014 • Day - Sunday• Time – 11.00 am -4:00 pm• Weather condition – Sunny, Gentle Breeze • Duration – 5 hrs. (short count)• Number of Enumerator - 09

GEOMETRIC CONDITION OBSERVATION

Geometric layout of the roadway

Road Length = 970 meter

Road width = Road width varies along the direction starting from Panthapath to Russell Square.

Distance starting from panthpath(m) Width(m) of left approach Width (m) of right approach Lane0 11.7 9.8 350 14.8 11.8 4

100 9.6 9.5 3

150 9.4 9.2 3

200 9 9.2 3250 8.5 9.9 3300 8.7 8.6 3350 8.7 8.6 3400 8.6 8.6 3450 8.4 8.9 3500 9.3 9.9 3550 9 8.8 3600 8.6 8.8 3650 7.5 8.7 3700 9 8.3 3750 8.7 8.5 3800 7.2 8.6 3850 8.4 8.5 3900 11.5 8.5 3950 17.8 11 4

Median Dimension

Click icon to add picture

Median dimension was taken near panthapath signal

Width=1.6 meters = 5.25 feet

Height= .508 meters = 20 inch

Shoulder Dimension

Shoulder width was measured in the midblock section in front of a shop (Mr. Baker)

Width= 7 ft.

Height = 6 inch

Geometric layout of the intersection

Geometric measurement and position of Channel/Island, pedestrian refuge corner radius

Russell Square Intersection

Russell Square Intersection E-W W-E

Distance between median to channel 21.83 feet 22.5

Channel length40 feet on straight 72 feet on Straight

42 feet on curve 75 feet on curve

Channel Width 17.5 feet 55 feet

Distance from channel to footpath 13.5 feet 21.5 feet

Pedestrian refugeLength 10 feet Length 20 feet

Width 12 feet Width 15 feet

Panthapath Intersection

Panthapath Intersection E-W W-E

Distance between median to channel 39 feet 22.5 feet

Channel length22 feet on straight 24 feet on Straight26 feet on curve 25 feet on curve

Channel Width 21 feet 11.5 feet

Distance from channel to footpath 14 feet 13.5 feet

Pedestrian refugeLength 11 feet Length 12 feetWidth 10 feet Width 10 feet

Dimension and Location of pedestrian refuge Click icon to add picture

Besides intersection and near

opening of the road, to

facilitate the pedestrian

crossing, pedestrian refuge

was provided. 6 inch height

provided in pedestrian refuge.

Surface condition

Surface condition near high

speed location Zebra crossing

At intersections

• Qualitative observation of Potholes , elevated / depressed manholes , speed

breakers etc. was counted and recorded .

Operating Condition Observation

Location and Width of side roads

Along the direction Panthapath to Russell Square

Side road No. Chain age starting from Russell

square (m)

Width (m)

1 49.6 3.6

2 80 4.1

3 229.6 3

4 299.5 6

5 350 1.9

6 592.3 3

7 783 4.5

8 892.2 2

Side road No. Chain age starting from Panthapath (m) Width (m)

1 52.92 .97

2 63.13 2.61

3 86.88 1.9

4 109.25 3.19

5 278.9 4

6 311.9 4

7 357.91 3

8 372.61 3.31

9 379.41 3.5

10 447.92 4

11 665.92 4

Along the direction Russell Square to Panthapath

Road side land-use pattern

The roadside land use pattern is highly dense with commercially developed area including Bank,

Hospital , School, Market, Shopping Mall, Showrooms etc. in the range of 2 storied up to 24 storied.

Loss of road width Due to Parking & Parking Barrier

• Due to Passenger Loading/Unloading , Para transit & NMV Activity

• Presence of Dustbin/ Trash Disposal & Construction Materials

• Cutting , Digging ,Repair & Maintains work & Some Illegal Activities

Pedestrians Crossing Facilities

Opening Median

Due to facilitate the pedestrian crossing, opening was

provided on top of the median at some intervals in

the mid block section. Near panthapath signal median

height was found to be approximately 20 inch. For

facilate as a pedestrian refuge ,this height was

reduced to 4-5 inch.

• Pedestrian Refuge

Besides near intersection and opening of the road, to facilitate the pedestrian crossing, pedestrian refuge was provided.

Location & Types of Traffic Control Device

Road Sign & Marking

Sign :Traffic signs or road signs are signs erected at the side or above roads to give instructions or provide information to road users. In our survey road we found sings in both intersection.

MarkingTypes of marking

Centre Line, Pavement Edge Lines, Stop Line, Pedestrian Crossings, Word Marking/Message, Divisional Arrow

• Signal

Traffic signs control the flow of traffic, warn you of hazards ahead, guide you to

your destination, and inform you of roadway services.

Primary traffic signal

Secondary traffic signal

Tertiary Traffic Signal

Special Filter Signal

o Pedestrian Crossing Signal

o Timer signal

Layout of Street lighting System

Sodium Light Center, Two head/Double arms

Solar Panel Light

DATA ANALYSIS

Detailed Layout of Roadway & Intersection Layout of Roadway, where geometric alignment and side roads are shown

Layout of intersection Panthapath intersection’slayout when East-West & North-South traffic flowoccurs. And also conflictare shown

Russell Square intersection

Stages of traffic movement at Panthapath IntersectionThree Stages Flow

Stage 1

Stage 2

Stage 3

Stages of traffic movement of Russell Square Intersection

Here Also three stages traffic flow occurs

Stage 1

Stage 2

Stage 3

Location of Bottleneck Due to indiscriminate bus stopping/Stand in both intersection bottleneck is

arises

Due to Littering-car parking through the roadway bottleneck causes though the roadway

At side roads opening bottleneck causes

Para transit & NMV activities in front of commercial centers like Hospital, Shopping mall and also opening of side roads Bottleneck creates.

Due to cracking of edge road bottle neck also arises.

Road Light Alignment

Sodium light layout system mostly common in Dhaka city. The clear distance

between two street lights post or lamp post are approximately 100 feet. Total number of street light found was 33.Through the roadway

We also found some Solar panel

Light System which may provided by

Sponsor's in front of Square Hospital.

Control DeviceSome of Control device found through the road way.

Pedestrian Crossing Signals found in both intersections

Density of Side Friction’s

Different feature of roadway Bottleneck Cause Direction

E-W W-E

Density of side road 8 11

Density of opening 2 2

Density of Pedestrian crossing in median 24 24

Density of Street light 33 33

Density of Manhole 9 15

Density of Dustbin 0 1

Density of Bus stops 0 1

Density of speedbraker 0 0

Some other obstruction on the main road are indiscriminate goods loading and unloading on the road, disturbed traffic flow due to non motorized vehicles entrance like rickshaw, van, cycle and presence dustbin on the road. It should be must monitored

Loading or unloading goods Non motorized vehicle Dustbin blocks almost one road lane

Erased road marks at intersections at channel head, Line Division, and pedestrian crossing & Leder crossing signs are erased, invisible traffic signal can create problem.They must be monitored

Erased road marks/Sign at intersection At Channel Head

Invisible Leder crossing Invisible Pedestrian crossing

At intersections the Ghost islands are blocked or not facilities the pedestrian and its head are broken

Road sign’s are covered by poster or erased and broken or disable street lights are present in roadway . Some V-notch’s are broken & V-notch sign & marking are erased

Covered & Erased Sign & Slotted Sign Unmarked V-Notch

Surface condition of the road is not fair enough due to various kinds of road cracking which decreases the skid resistances of the road and of the road way

fatigue crack Ravelling

Some traffic law breaking

RECOMMENDATIONS

The surface of roadway was not good enough and the medians were not geometrically right. The marks on the road were invisible. So our recommendation is that we should be careful about regular maintenance of road to avoid unwanted incidents such as accidents.

The signs we observed on the roadway were old and not only covered by posters but also broken. So replacing these old sign plates with new ones is highly recommended.

We found different kind of small shops on the footpath or shoulder. So it is recommended that Dhaka City Corporation should take essential step to clear the footpath so that pedestrian can move easily.

There were no facilities for blind people ,people who use wheelchair and people who are not normal. So extra facilities for these people are recommended.