BTT Traffic Light Rules 2 — Questions and Answers
Question 1: What do temporary traffic lights at a road construction site mean?
- They are advisory only
- They carry the same legal force as permanent traffic lights (Correct answer)
- They only apply to heavy vehicles
- They can be ignored during off-peak hours
Correct answer: They carry the same legal force as permanent traffic lights
Temporary traffic lights at construction sites carry the same legal authority as permanent ones. You must obey them.
Question 2: A traffic light shows a green arrow but no other green signal. What does this mean?
- You may go in any direction
- You may go only in the arrow direction — other directions are red (Correct answer)
- The signal is changing
- Pedestrians have right of way in all directions
Correct answer: You may go only in the arrow direction — other directions are red
A green filter arrow without an accompanying green light means only traffic going in the arrow's direction may proceed. All other directions are still red.
Question 3: What should you do if you are caught in the middle of a junction when the light turns red?
- Reverse back behind the stop line
- Proceed and clear the junction as quickly and safely as possible (Correct answer)
- Stop where you are
- Wait for the next green light in the junction
Correct answer: Proceed and clear the junction as quickly and safely as possible
If you are already in the junction when the light turns red, you should clear the junction as quickly and safely as possible. Never reverse.
Question 4: At a junction with a dedicated right-turn phase, when should you turn right?
- Whenever the main light is green
- Only when the right-turn green arrow is shown (Correct answer)
- When there is a gap in oncoming traffic
- At any time if the road is clear
Correct answer: Only when the right-turn green arrow is shown
When a junction has a dedicated right-turn phase (green arrow), you should only turn right when that specific green arrow is displayed.
Question 5: What is the purpose of the countdown timer displayed on some traffic lights in Singapore?
- To show how long until the light turns green for vehicles
- To show pedestrians how much time remains to cross (Correct answer)
- To display the speed limit
- To indicate the traffic camera timer
Correct answer: To show pedestrians how much time remains to cross
Countdown timers at pedestrian crossings show how much time pedestrians have remaining to complete their crossing safely.
Question 6: Can you make a left turn on a red light in Singapore?
- Yes, after coming to a full stop
- Yes, if there is a green left-turn arrow (Correct answer)
- No, never
- Only if a sign permits it
Correct answer: Yes, if there is a green left-turn arrow
You may only turn left on red if there is a green filter arrow permitting the left turn. Without the arrow, you must wait for the main green light.
BTT Traffic Light Rules 2
What do temporary traffic lights at a road construction site mean?