Loading & Unloading第 15 / 80 题

The red flashing lights and stop arm should be used:

a.At every intersection
b.Whenever the bus is moving
c.When the bus is stopped to load or unload students on a roadway
d.Only in bad weather

解析

Red flashing lights and the extended stop arm are activated when the bus is stopped to load or unload students on the roadway, requiring surrounding traffic to stop. They must not be used as a courtesy or at other times, which would confuse motorists. Follow your state law on when they are required.

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