United States Department of Transportation
i
Operation, analysis, and design of signalized intersections : a module for the introductory course in transportation engineering.
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2014-02-01
[PDF-3.04 MB]
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Abstract:This report presents materials that can be used as the basis for a module on signalized intersections in the introductory
course in transportation engineering. The materials were developed based on studies of the work of students who took
this introductory course, including analysis of examination results, homework assignments, and interviews with students
to identify concepts that were particularly difficult for them. Existing textbooks commonly used in the introductory course
were reviewed to identify how concepts and topics related to signalized intersections were treated. Standard guidebooks
used by transportation professionals were reviewed to identify concepts that would be appropriate to include in a new
curriculum. The following guidelines were used to develop these materials:
• Understanding the basic operation of a traffic controller is an important foundation for a realistic understanding of
how a signalized intersection works.
• Focusing on the automobile user and pretimed operation allows the student to learn about fundamental principles of
a signalized intersection.
• Queuing models are presented as a way of learning about the fundamentals of traffic flow at a signalized intersection.
• Only those equations that students can apply with some degree of understanding are presented.
• Learning objectives are clearly stated at the beginning of each section so that the student knows what is to come.
• Graphically illustrating basic concepts is an important way for students to learn.
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