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Roadway Intersection Geometric Design (3 credit hours/3 HSW Hours)
Intersections are unique roadway elements where conflicting vehicle streams (and sometimes non-motorized users) share the same space. This area encompasses all modes of travel (pedestrian, bicycle, passenger vehicle, truck, and transit) as well as auxiliary lanes, medians, islands, sidewalks and pedestrian ramps. These may further heighten the accident potential and constrain the operational efficiency and network capacity of the urban street system. However, the main objective of intersection design is to facilitate the roadway user and enhance efficient vehicle movement.
 
This 3 hour course summarizes and highlights the geometric design process for modern roadway intersections. The contents of this document are intended to serve as guidance and not as an absolute standard or rule.
Gregory Taylor
After completion of this course the student will have gained knowledge on the following topics regarding Roadway Intersection Geometric Design:
 
  • General design considerations – function, objectives, capacity
  • Alignment and profile
  • Sight distance – sight triangles, skew
  • Turning roadways – channelization, islands, superelevation
  • Auxiliary lanes
  • Median openings – control radii, lengths, skew
  • Left turns and U-turns
  • Roundabouts Miscellaneous considerations – pedestrians, traffic control, frontage roads
  • Railroad crossings – alignments, sight distance

Titan Continuing Education, Inc. | 1519 Dale Mabry Hwy, Ste 201 Lutz, FL 33548 | Toll Free: 800.960.8858 | Email: info@TitanCE.com .