BTT Speed Limits and Zones 3 — Questions and Answers
Question 1: What happens to the severity of pedestrian injuries as vehicle speed increases from 30 km/h to 50 km/h?
- Slight increase
- The risk of fatal injury increases dramatically — from about 10% to about 80% (Correct answer)
- No difference
- It depends on the pedestrian's age only
Correct answer: The risk of fatal injury increases dramatically — from about 10% to about 80%
At 30 km/h, about 10% of pedestrian collisions are fatal. At 50 km/h, this rises to about 80%. Even small speed reductions save lives.
Question 2: Your vehicle's speedometer reads 60 km/h. Is your actual speed likely to be exactly 60 km/h?
- Yes — speedometers are always accurate
- No — speedometers typically read slightly higher than actual speed (Correct answer)
- No — speedometers typically read lower than actual speed
- Only digital speedometers are accurate
Correct answer: No — speedometers typically read slightly higher than actual speed
Most speedometers are calibrated to read slightly higher than the actual speed. This is a safety margin built in by manufacturers.
Question 3: What is the purpose of road humps in residential areas?
- To channel rainwater
- To physically force drivers to reduce speed for safety (Correct answer)
- To mark parking spaces
- To test vehicle suspension
Correct answer: To physically force drivers to reduce speed for safety
Road humps are traffic calming devices designed to physically force drivers to slow down in areas with high pedestrian activity.
Question 4: On a road with a 50 km/h limit, can you be penalised for driving at 50 km/h if conditions are dangerous?
- No — you are within the speed limit
- Yes — you must drive at a speed appropriate for conditions, even if below the limit (Correct answer)
- Only if an accident occurs
- Only in designated zones
Correct answer: Yes — you must drive at a speed appropriate for conditions, even if below the limit
Driving at the speed limit in dangerous conditions (fog, rain, crowds) can be considered dangerous driving. You must adjust speed to conditions.
Question 5: What does the demerit point system do in relation to speeding offences?
- It tracks repair costs
- It accumulates points per offence — too many leads to licence suspension (Correct answer)
- It reduces insurance premiums
- It has no real consequence
Correct answer: It accumulates points per offence — too many leads to licence suspension
Singapore's demerit point system adds points for each offence. Accumulating 24 or more points within 24 months leads to licence suspension.
Question 6: What speed should you not exceed when passing a road accident scene?
- The posted speed limit
- A slow, cautious speed appropriate for the situation (Correct answer)
- 40 km/h exactly
- There is no specific requirement
Correct answer: A slow, cautious speed appropriate for the situation
When passing an accident scene, slow down significantly. Emergency workers and injured people may be on the road, and debris may be present.
BTT Speed Limits and Zones 3
What happens to the severity of pedestrian injuries as vehicle speed increases from 30 km/h to 50 km/h?