Overview
This course for Highway and Traffic Engineers focuses on determining the number of lanes required for an acceptable Level Of Service for each approach lane to an signalized intersection. A set of Rule of Thumbs are used to determine lane configuration for each approach prior to starting the actual intersection design. The design engineer will be able to determine the actual number of lanes required for left turns, thru movements, right turns, and to estimate the length of queue for each approach. Examples will explain the method of design to determine an acceptable Level of Service.
Students of this course will be able to actually determine the number of lanes for each approach to an intersection, the Level Of Service for each approach lane, including the queuing length for each lane and its required vehicle storage length.
At the conclusion of this course, the student will be able to determine:
- The number of thru lanes required
- The number of left turn lanes and their storage length
- If the travel way can accommodate the purposed number of lanes
- Use basic Rules of Thumb to aid in intersection design
The student must take a multiple-choice quiz consisting of twenty (20) questions at the end of the course to obtain PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Lane Designation: Thru Movements; Left Turning Movements; Right Turning Movements; Side Street Movements
- Lane Capacity Design Elements
- Length of Storage Lanes
- Preliminary Traffic Signal Design via the use of examples
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Preliminary Traffic Signal Design
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To receive PDH credit for this course, you must pass a multiple-choice quiz. Click the button below to Purchase Course and Take Quiz. To take the quiz, your computer must be set to accept cookies. See how to check your cookie settings.







