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Preliminary Traffic Signal Design
Robert Hintersteiner, P.E.
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:
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The number of thru lanes required.
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The number of left turn lanes and their storage
length.
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If the travel way can accommodate the purposed
number of lanes.
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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 Attained
This course teaches the following specific knowledge and
skills:
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Lane Designation: Thru Movements;
Left Turning Movements; Right Turning Movements; Side Street Movements.
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Lane Capacity Design Elements.
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Length of Storage Lanes;
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Preliminary Traffic Signal Design via the use of examples
Course
Click on the following PDF attachment and review the
course
Preliminary Traffic Signal Design
prior to taking a quiz for credit.
Preliminary Traffic Signal Design (426 KB)
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To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
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