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Engineering Countermeasures to Reduce Red-Light Running

COURSE NO: C07-011
Engineering Countermeasures to Reduce Red-Light Running
Course Highlights

This online engineering PDH course will explore the various uses of enforcement, engineering and education that make intersections safer. It will focus on all three countermeasures and how they can be used to reduce red-light running. Although different in nature, these three countermeasures, when used concurrently, will be most effective in making signalized intersections safer.


Red-light running is one of the primary causes of crashes in intersections. The crashes that result from red-light violations are generally more severe than crashes from other causes. Most crashes that are caused by red-light violations are generally side impact crashes, which are more severe than rear collisions. There are three main countermeasures that can be taken to reduce red-light running, which are enforcement, engineering and education. Although red-light running is a serious problems there are steps that could be taken to reduce this problem


This 7 PDH online course is applicable to roadway, traffic, and civil engineers, as well as engineers in local, state and federal government or anyone interested to gain an understanding of why drivers run red-lights at intersections.

Learning Objectives

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

  • Learning about the three main countermeasures to reduce red-light running
  • Familiarizing with crash and fatality statistics related to red-light running
  • Understanding economic loss due to red-light running
  • Learning about the age group with the highest red-light runners
  • Understanding why a signal is sometimes not needed
  • Learning how speed plays a factor in red-light running
  • Understanding the advantages and disadvantages of roundabouts
  • Understanding how pedestrians can play a part in controlling red-light runners
  • Understanding what is a "red-light hold" system and how does it work
  • Learning about the eight-stage process used by North Carolina to control red-light running
  • Understanding the difference in how police, research and engineering address red-light running
  • Learning about the best way to determine if there is indeed a red-light running problem
  • Understanding the role of back plates for red-lights
  • Knowing the definitions of yellow and red change intervals
  • Understanding how injury rates from red-light running compares to other crash types
  • Familiarizing with the future needs for understanding red-light running
  • Learning about the uses of Rat Boxes intersections
  • Knowing the items to check during a site review
  • Understanding the importance of Line of standard kinematic equation to calculate the change interval
  • Understanding how rumble strips can be used as a warning device
  • Learning ways to improve a signal's conspicuity
  • Learning about the minimum recommended sight distance per 85th percentile speed
  • Understanding the possible causes and appropriate countermeasures for red-light running
  • Knowing how cameras can be used to reduce red-light running
  • Understanding how the public will benefit from safer intersections and roadways
Course Document

In this professional engineering CEU course you will need to review the Federal Highway Administration Publication IR-115, "Making Intersections Safer: A Toolbox of Engineering Countermeasures to Reduce Red-Light Running".

To view, print and study the course document, please click on the following link(s):
Engineering Countermeasures to Reduce Red-Light Running (2.45 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of forty (40) questions to earn 7 PDH credits. The quiz will be based on this FHWA Publication.
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: