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Effectiveness of Countermeasures for Roadway Departure Crashes

COURSE NO: C01-023
Effectiveness of Countermeasures for Roadway Departure Crashes
Course Highlights

This online engineering PDH course provides estimates about 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).  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? To answer questions like these, in this course CRFs are presented in separate tables for barrier, bridge, geometric, median, roadside, and signs/markings/operational countermeasures.


This 1 PDH online course is intended for traffic engineers and other transportation professionals concerned with the design of roadways.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with “crash reduction factors”
  • Learning how to identify CRFs for barrier, bridge, geometric, median, roadside, and signs/markings/operational countermeasures
  • Understanding how crash severity and road type are taken into account
  • Knowing how to calculate the 95% confidence interval for the potential CRF that might be achieved by implementing the countermeasure
Course Document
In this professional engineering CEU course, you need to review the course document titled “Effectiveness of Countermeasures for Roadway Departure Crashes”, which is based on the document published by the U.S. Department of Transportation FHWA, “Toolbox of Countermeasures and Their Potential Effectiveness for Roadway Departure Crashes”, Publication No. FHWA-SA-07-013, dated September 2007.
To view, print and study the course document, please click on the following link(s):
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of ten (10) questions to earn 1 PDH credit. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: