Curb Colors
Red-
No stopping, standing, or parking. (Buses may stop at a red zone marked for buses.)
Green-
Park for a limited time. Look for a posted sign next to the green zone for time limits, or locate the time limit painted on the curb.
Blue-
Parking is permitted only for a disabled person or driver of a disabled person who displays a placard or special license plate for disabled persons or disabled veterans.
Yellow-
Stop no longer than the time posted to load or unload passengers or freight. Drivers of noncommercial vehicles are usually required to stay with the vehicle.
White-
Stop only long enough to pick up or drop off passengers or mail.
An "accident" implies
an unforeseen event that occurs without anyone's fault or negligence. Most often in traffic, that is not the case. COLLISION IS NOT AN ACCIDENT.