Question

Which of the following is not an application of travel time and delay study?

• A. Collection of rating data
• B. Problem location identification
• C. Economic analysis
• D. Determining relation between mean speed and flow

Hint:

Travel time and delay studies are crucial for operational analysis of road networks. They provide insights into where, when, and why delays occur, which is vital for identifying bottlenecks, assessing the economic impact of congestion, and understanding the fundamental relationships between traffic speed and volume.

Answer 1

The Correct Option is D

Step 1: Understanding Travel Time and Delay Studies
Travel time and delay studies are conducted to:

• Measure vehicle travel time over road segments
• Identify congestion points and delays
• Evaluate the effectiveness of traffic management strategies

Step 2: Valid Applications
Applications of such studies include:

• (1) Collection of rating data like travel speed and trip time — applicable
• (2) Problem location identification such as bottlenecks or congestion — applicable
• (3) Economic analysis by evaluating time delays and vehicle operating costs — applicable

Step 3: Explanation of Option (4)

• Determining the relation between mean speed and flow is part of traffic flow theory, not travel time and delay studies.
• It is typically done using the fundamental diagram of traffic flow, involving speed, flow, and density relations.