via https://www.lta.gov.sg/content/ltaweb/en/roads-and-motoring/road-safety-and-regulations/road-regulations.html
SPEED LIMITS FOR VEHICLES
Driving above the speed limit, or too fast for the current conditions, can have severe consequences for the people in the vehicle and other road users. The following speed limits are enforced by LTA to ensure everyone’s safety:
Type of Vehicle
Roads
Expressways
Tunnels
Cars & motorcycles
50km/h
70-90km/h
50-80km/h
Buses & coaches
50km/h
60km/h
50-60km/h
Light commercial vehicles (includes Light Goods Vehicles and small buses not exceeding 3.5 tonnes and seating capacity of up to 15 passengers)
50km/h
60-70km/h
50-70km/h
Exceptions: Fire engines, Ambulances, and Government vehicles used by Singapore Police Force or the Singapore Civil Defence Force