Slide (92 of 125)
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The upper sign shows a steep grade. But a sign like that alone is not adequate for truck drivers to determine how safe that grade is. For example, if this was a 13% grade for a length of one-half mile, drivers would make a determination how fast they should be going and what gear they should be in. Or if it was a 7% grade for 300 feet those drivers would drive the trucks much differently. So you need to determine, and let the drivers know, the information they need to safely descend grades.
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