Yes, you must obey all traffic signs and traffic light signals while cycling. This is a legal requirement to ensure the safety of all road users. Compliance with these laws helps prevent accidents and promotes orderly traffic flow.
Laws RTA 1988 sect 36 & TSRGD schedule 3 part 3, schedule 7 part 4, schedule 9 parts 4 and 6, schedule 13 part 6, schedule 14 part 2