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GATE 2020 CE (CE2) – Question 19

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

After a signal turns green, the constant discharge headway reached from the fourth or fifth vehicle position is called ______.

  1. discharge headway
  2. effective headway
  3. intersection headway
  4. saturation headway

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Show answer and explanation

Correct answer: (D) saturation headway

Explanation

Initial queued vehicles incur startup delay. Once discharge stabilizes,the nearly constant headway is the saturation headway,and saturation flow is3600 divided by that headway in seconds. **Answer:D**.