Traffic Rules and Regulations
Core rules
Singapore's road rules are built around lane discipline, giving way and keeping junctions clear. Know default speed limits: 50 km/h on most roads unless signs show otherwise, 90 km/h on expressways, and lower posted limits in school zones and hazardous areas. A speed limit is a maximum for good conditions, not a target.
At a roundabout, give way to traffic approaching from your right. At a junction controlled by lights, a green circle means proceed only if the way is clear and you can give way to oncoming traffic when turning right; a green arrow gives protected right of way in that direction. Amber means stop unless you are so close that stopping would be unsafe. Never enter a yellow box junction unless your exit is clear, or you are turning right and only oncoming traffic blocks you.
Keep left unless overtaking. Do not cross continuous white lines or double white lines. U-turns are only allowed where signs or markings permit. Seat belts and child restraints are mandatory for occupants. Using a handheld phone while driving, even while stopped at lights, is illegal. Bus lanes operate only during stated hours; check the sign. Driving requires valid road tax, insurance and a qualified driver; drink-driving and drug-driving are serious offences with demerit points and prosecution.
Trap
Questions often contrast 'give way' with 'right of way'. You never have an absolute right of way; you must still avoid a collision. Another trap is treating an amber light as 'speed up'.
Rule of thumb
If you cannot clear a junction or box, do not enter it.