Flashing red and yellow lights control some intersections during times when there is __________ traffic flow.

Question

Question: Flashing red and yellow lights control some intersections during times when there is __________ traffic flow.

Options:

1.  low
2.  extremely high
3.  moderately high
4.  moderate

Answer 1

1. Low

Flashing red and yellow lights control some intersections during times when there is low traffic flow.

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A  red  flashing lamp means exactly the same as the stop sign: STOP!

A  yellow  signal light indicates that a red signal is about to appear.