Quebec Knowledge Test Coach
Traffic lights and pavement markingsQuestion 170 of 318

Why are temporary traffic lights placed near some work areas?

  1. Cars must stop while workers rest
  2. Both directions share one lane, in turn
  3. The road is closed to all traffic
  4. Only heavy vehicles may pass
Show answer

Correct answer: Both directions share one lane, in turn

Temporary lights control traffic when vehicles from both directions must share one lane and take turns.

Source: Driver's Handbook, 2nd edition (SAAQ, 2018), Chapter 3, Road Signs and Traffic Signals > Signal lights > Temporary road work lights, page 110

Practice traffic lights and pavement markings

Questions last reviewed: 18 October 2026