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Traffic Volume Study

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Traffic Volume Study
Road-Traffic Studies Part One

CE-452 TRANSPORTAION ENGINEERING SESSIONAL II

Traffic Volume Survey

List of Content

1. Introduction
2. Scope and Objectives
3. Methodology
4. Data collection
5. Data analysis
6. Conclusion

Chapter One
Introduction

1.1. Traffic Survey:
Traffic engineers and planners need information about traffic. They need information to design and manage road and traffic system. They use the information for planning and designing traffic facilities, selecting geometric standards, economic analysis and determination of priorities. They use this to justify warrant of traffic control devices such as signs, traffic signals, pavement markings, school and pedestrian …show more content…

These variations are needed to establish expansion factors for future use. Using expansion factors, AADT can be calculated from short count.
 Flow fluctuation on different approaches at a junction or different parts of a road network system.

2.2. Objectives:
The purposes of carrying out traffic volume count are designing, improving traffic system, planning, management etc.
2.2.a. Design purposes:
 Structural and geometric design of pavements, bridge, and other highway facilities. Structural design is based on repetition of wheel load on the pavement in entire design life. AADT is needed with traffic growth rate to compute design wheel repetition. Geometric design is based on peak hour volume to avoid congestion.
 Intersection design including minimum turning path, channelization, flaring, traffic control devices viz. traffic signs, markings, signals based on approach volume and turning proportions.
 Pedestrian volume study is useful for designing side walks, pedestrian crossing etc. 2.2.b. Improvement purposes:
 To allocate limited maintenance budget rationally, it is important to know the traffic volume carried by a particular roadway section in order to decide the importance of the road and fixing its relative priority.
 In order to improve the roadway operating condition, it is important to know the traffic volume.
 To examine the existing operating/service condition of a roadway section.
 To

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