IMSA Traffic Signal Technician Level II Practice Test 2025 – Your All-in-One Guide to Exam Success!

Question: 1 / 400

In traffic signal terminology, what is the function of a gap counter?

Count the number of vehicles in a queue

Monitor pedestrian crossing times

Determine available gaps for turning movements

The function of a gap counter is to determine available gaps for turning movements. This tool is crucial for analyzing the flow of traffic at intersections and understanding when it's safe for vehicles to make turns, particularly when crossing oncoming traffic lanes. By measuring the time intervals between vehicles, a gap counter provides data that can help optimize signal timings and improve overall traffic safety and efficiency. It can also aid in designing traffic signals and managing traffic flow, assisting in the reduction of delays for turning vehicles. This data is used by traffic engineers to make informed decisions about signal operations, ensuring that vehicles can navigate intersections without unnecessary delays or safety risks.

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Track average speed on approaches

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