NUMBER coding is one of the methods used by authorities to reduce the number of cars that operate in certain areas or roads. Under the current system for Metro Manila that covers major roads (EDSA, C5, Shaw Boulevard, Marcos Highway, etc.), a vehicle is restricted from operating between 7 a.m. to 10 a.m. and 5 p.m. to 8 p.m. on a particular day during weekdays depending on the plate number's last digit. Vehicles with plate numbers ending in 1 or 2 are restricted on Mondays, 3 or 4 on Tuesdays, etc. Motorcycles are not subject to number coding.