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D104
Countermeasures for Traffic Signals and Pedestrian Crashes

Mark P. Rossow, Ph.D, PE Retired

This online engineering PDH course describes the crash reduction expected if various countermeasures are implemented with respect to traffic signals and pedestrian crashes. The estimates are presented as Crash Reduction Factors (CRFs). 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 at the signalized intersection of Maple and Elm Streets, an intersection that is experiencing a high number of crashes? What changes in the number of crashes are possible with the various countermeasures for traffic signals? Similarly, which countermeasures might be considered at the signalized intersection of Oak and Pine Streets, an intersection experiencing a high number of pedestrian crashes? What change in the number of pedestrian crashes can be expected with the implementation of the various countermeasures for pedestrian crashes?

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.

AIA Members: You must take the courses listed under the category "AIA/CES Registered Courses" if you want us to report your Learning Units (LUs) to AIA/CES. If you take courses not registered with AIA/CES, you need to report the earned Learning Units (not qualified for HSW credits) using Self Report Form provided by AIA/CES.

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