Implementation of a rail crossing condition index: A) rideability assessment and B) hump crossing evaluation.
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2016-07-05
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Abstract:Annually, over 2000 rail highway crossing crashes in the U.S. result in nearly 300 fatalities. Crossing
roughness is a concern for the motoring public from a comfort and vehicle maintenance perspective,
and to highway authorities from a maintenance perspective. Roughness may even increase the risk of
crossing crashes. However, with 216,000 rail highway grade crossings in the US, maintenance
management is a large undertaking. Crossings deteriorate over time, sometimes rapidly, and life cycle
costs increase without preventive maintenance. However, while methods are available to quantify
highway roughness, no method currently exists to quantitatively assess the condition of rail crossings.
Because conventional inspection relies on qualitative judgment based on an inspector’s perception of
the crossing, effect on different vehicles and perception by other drivers is unknown. Further,
roughness may be due to as-built geometry, crossing deterioration, or a combination of both. A
quantifiable and extensible procedure is thus desired and is the subject of this report.
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