Regulatory signs
Minimum speed 45
What it means
A minimum speed sign, such as the MINIMUM SPEED 40 sign shown, sets the lowest speed allowed on that road when conditions are normal. A vehicle crawling far below the pace of traffic makes others brake hard or swerve around it, creating a hazard much like speeding does.
How the test asks about it
01Why is a minimum speed sign like this one posted?
- ATo warn you that traffic ahead may soon come to a stop
- BTo tell you the highest speed you may legally drive
- CTo keep drivers from going so slowly that they create a hazard Correct
A minimum speed sign, such as the MINIMUM SPEED 40 sign shown, sets the lowest speed allowed on that road when conditions are normal. A vehicle crawling far below the pace of traffic makes others brake hard or swerve around it, creating a hazard much like speeding does.
02Why do some highways post minimum speed signs?
- ATo help traffic keep moving smoothly. Correct
- BTo judge whether traffic signals will be needed later.
- CTo guarantee the safety of pedestrians.
Vehicles moving far below the speed of everyone else disrupt the flow and invite rear-end crashes and risky passing, so some highways set a minimum speed to keep traffic moving evenly.
More regulatory signs
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