Question

Fixed delay does not depend on which of the following factor?

• A. Traffic signals
• B. Traffic volume
• C. Markers
• D. Level crossing

Hint:

Distinguishing between fixed delay and operational delay is important in traffic analysis. Fixed delays are caused by control devices (e.g., traffic signals, stop signs, level crossings) that impose a stop regardless of traffic conditions. Operational delays, conversely, are caused by traffic interactions and congestion, and thus vary directly with traffic volume and flow.

Answer 1

The Correct Option is B

In the context of civil engineering traffic studies, a fixed delay refers to a time loss that occurs when traffic has to stop or slow down due to control devices such as traffic signals or physical barriers like markers and level crossings. This type of delay is characterized by being consistent and not varying with the fluctuating traffic volume.

Let's consider the factors mentioned:

• Traffic Signals: These are control devices that can cause a fixed delay as vehicles stop and wait for signals to change.
• Traffic Volume: This is a measure of the number of vehicles on the road and is variable. Fixed delays are constant and do not depend on how many vehicles are present.
• Markers: Physical indicators or signage that can cause consistent stopping or slowing down, contributing to fixed delays.
• Level Crossing: These can stop traffic completely when a train is passing, causing a fixed delay that does not change based on traffic volume.

Given this understanding, fixed delay does not depend on traffic volume since the delay remains the same regardless of the number of vehicles present.