A course in transportation engineering wouldn't be complete without
discussing some elements of Geometric Design. Most junior level courses cover several
aspects of Geometric Design, including the topics listed below. As these discussions
are only meant to supplement your learning experience, please don't forget to read your
textbook. To begin learning about these Geometric Design principles, just click on
the link of your choice. Topics followed by the characters '[d]' include an Excel
demonstration.
Sight Distances
Brake Reaction Time
Braking Distance [d]
Stopping Sight Distance [d]
Decision Sight Distance
Passing Sight Distance [d]
Horizontal Alignment
Horizontal
Alignment
Superelevation and Side-Friction
Minimum Radius Calculations [d]
Design Iterations
Horizontal Curve Sight Distance [d]
Transition Segments
Vertical Alignment
Vertical Alignment
Ascending Grades
Descending Grades
Vertical Curves
Crest Vertical Curves [d]
Sag Vertical Curves [d]
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