Module 2 : Traffic Measurement Procedures
Lecture 07 : Measurement Along a Length of Road
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Purpose of travel time and Delay Studies

  1. The purpose of a Travel Time and Delay Study is to evaluate the quality of traffic movement along a route and determine the locations, types, and extent of traffic delays by using a moving test vehicle.
  2. This study method can be used to compare operational conditions before and after roadway or intersection improvements have been made. It can also be used as a tool to assist in prioritizing projects by comparing the magnitude of the operational deficiencies (such as delays and stops) for each project under consideration.
  3. The Travel Time and Delay Study can also be used by planners to monitor level of service for local government comprehensive plans.
  4. The methodology presented herein provides the engineer with quantitative information with which he can develop recommendations for improvements such as traffic signal re-timing, safety improvements, turn lane additions, and channelization enhancements