Singapore legislation
Regulation 21
of Civil Aviation Authority of Singapore (Changi Airport) By-laws 2009
Regulation 21
Driving on roadway that crosses taxiway
Subregulation 1
The driver of a vehicle shall observe the red traffic light signals installed at various locations within the airside where vehicular traffic lanes cross the taxiways.
Subregulation 2
Every person who drives or operates a vehicle on a roadway that crosses a taxiway shall —
slow the vehicle down when the vehicle approaches the taxiway;
stop the vehicle before the stop-line at the crossing and keep a lookout for any aircraft that is taxiing towards the crossing, whether or not the red traffic light signals at the crossing are illuminated; and
proceed across the taxiway only if the red traffic light signals are not illuminated and after ensuring that it is safe to do so.