Speed Limits and Zones Flashcards

On a wet road, how does your braking distance change compared to a dry road?

Answer: It can double

On a wet road, braking distance can approximately double because of reduced tyre grip. You should increase your following distance accordingly.

What speed should you drive at in a car park?

Answer: No more than 15-25 km/h

In car parks, a very low speed of 15-25 km/h is appropriate due to pedestrians, reversing vehicles, and limited visibility.

What is the speed limit for vehicles towing a trailer on an expressway?

Answer: 60 km/h

Vehicles towing trailers have a lower speed limit of 60 km/h on expressways due to the increased stopping distance and reduced manoeuvrability.

What is the 'two-second rule' used for?

Answer: Maintaining a safe following distance behind the vehicle ahead

The two-second rule helps you maintain a safe following distance. Pick a fixed point and ensure at least two seconds pass between the vehicle ahead and yours passing it.

During heavy rain, should you drive at the posted speed limit?

Answer: No — you should drive below the limit at a speed appropriate for conditions

The posted speed limit is the maximum for ideal conditions. In heavy rain, you should drive significantly below the limit to account for reduced visibility and grip.

What device is commonly used to enforce speed limits in Singapore?

Answer: Fixed and mobile speed cameras

Singapore uses both fixed speed cameras and mobile speed detection devices to enforce speed limits across the road network.