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D102
Effectiveness of Countermeasures for Roadway Departure Crashes

Mark P. Rossow, Ph.D, PE Retired

In this online engineering PDH course, estimates are discussed of the crash reduction to be expected if various countermeasures are implemented with respect to roadway departure and other non-intersection crashes. The estimates are presented as Crash Reduction Factors (CRFs —the percentage crash reduction that might be expected after implementing a given countermeasure). Traffic engineers and other transportation professionals can use the information contained in this course when asking the following types of question: Which countermeasures might be considered along a particular section of a highway that is experiencing a high number of roadway departure crashes? What changes in the number of roadway departure crashes can be expected with the implementation of the various countermeasures?

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.


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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.

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