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Evaluation Of Truck Escape Ramps, Jerry G. Pigman, Kenneth R. Agent
Evaluation Of Truck Escape Ramps, Jerry G. Pigman, Kenneth R. Agent
Kentucky Transportation Center Research Report
Out-of-control vehicles on steep grades have the potential for and frequently do result in severe accidents. There are two truck escape ramps in Kentucky, and both were constructed as a result of severe accidents and the potential for additional accidents.
One escape ramp is on the Hyden Spur (KY 118) in Leslie County. Because of geometric conditions of the highway and topographic constraints, an arrester-type escape ramp was designed with pea gravel as the arrester material. The beginning of the ramp is a 386-foot paved section on an 8-percent downgrade; followed by a gravel bed 520 feet long on a …