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C304
Low Cost Treatments for Horizontal Curve Safety

Vincent D. Reynolds, MBA, PE

Horizontal curves are often encountered when traveling along highways. Due to topographical features horizontal curves are designed with moderate to very extreme radii to avoid obstacles. As a vehicle traverses a horizontal curve, the friction between the tires and the pavement help to keep the car on the road by opposing the centrifugal force.

Due to speed, road conditions and other factors, some vehicles may leave the roadway when driving through a horizontal curve. This course will discuss the low cost treatments that may be applied along horizontal curves. Design characteristics such as speed, and radii will be discussed as well as references to various signs from the Manual of Uniform Traffic Control Devices (MUTCD).

This course will provide the reader with the knowledge that will aid in designing horizontal curves as safely and economical as possible. The course materials are based solely on the Transportation Research Board document “Low Cost Treatments for Horizontal Curve Safety.”

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