Traffic Control — Alberta Driver's Licence Practice Test

This Alberta Driver's Licence Traffic Control practice set has 105 practice questions based on the official exam materials, each with an instant explanation. You need 83% on the real Alberta Driver's Licence knowledge test to pass.

Sample questions

Three questions from the Traffic Control bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.

1. What three colours does a traffic control signal use to control the flow of traffic?

   • Green, yellow, and red — Correct answer
   • Blue, white, and red
   • Green, orange, and white
   • Yellow, blue, and green

   Explanation: Traffic control signals use green, yellow, and red lights; the colour of the light determines which stream of traffic has the right-of-way.

   Handbook: Traffic Control — Traffic Control Signals

2. On a vertical traffic signal, in what order are the lights arranged from top to bottom?

   • Red on top, yellow in the centre, green at the bottom — Correct answer
   • Green on top, yellow in the centre, red at the bottom
   • Yellow on top, red in the centre, green at the bottom
   • Red on top, green in the centre, yellow at the bottom

   Explanation: On a vertical traffic signal the order is red at the top, yellow in the centre, and green at the bottom.

   Handbook: Traffic Control — Signal Light Order

3. On a horizontal traffic signal, in what order are the lights arranged from left to right?

   • Red on the left, yellow in the centre, green on the right — Correct answer
   • Green on the left, yellow in the centre, red on the right
   • Red on the left, green in the centre, yellow on the right
   • Yellow on the left, red in the centre, green on the right

   Explanation: On a horizontal traffic signal the order is red on the left, yellow in the centre, and green on the right.

   Handbook: Traffic Control — Signal Light Order