The GATE Grind

GATE 2018 CE (CE1) – Question 26

Traffic Engineering and Transportation Planning · Traffic signs, signal design by Webster method, intersections and interchanges · 1 mark · Multiple choice

A well-designed signalized intersection has ______.

  1. increased crossing conflicts
  2. minimum total delay
  3. cycle time equal to summed red and green times in all phases
  4. cycle time equal to summed red and yellow times in all phases

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Show answer and explanation

Correct answer: (B) minimum total delay

Explanation

Signal timing allocates right of way among conflicting approaches while controlling queues. A good timing design seeks to **minimize total delay, B**, subject to operational and safety constraints. Increasing conflicts is undesirable, and summing every phase’s red times does not define cycle length.