Highway Safety Manual Practitioners Guide for Geometric Design Features
Instructor-led Training (ILT)
TRAINING LEVEL: Accomplished
CLASS SIZE: Minimum: 20 Maximum: 30
This course includes both 2-lane and multi-lane highways and provides a proven methodology for the safety performance of geometric design decisions in a like manner to that of predicting capacity and level of service based upon large scale definitive research. The crash prediction models for total crashes and cross-section related crashes based upon lane width, shoulder width, roadside hazard, traffic volume (exposure) and other characteristics are presented. Examples of safety performance prediction are presented for highway segments and intersections.
Discussion of research and the interactive effects of lane and shoulder widths, hazard rating, and access density (driveways) on safety performance are presented. Each student receives a copy of the "Safety Effects of Highway Design Features" manual.
IMPORTANT: Participants should bring a scientific notation calculator as the course involves calculating decimal value to decimal power for crash prediction values.
Upon completion of the course, participants will be able to:
Recognize the safety effects of geometric design features
Predict the safety performance of geometric design features
Compare alternative designs based upon an assessment of the safety effects of geometric design features
State and local highway engineers and consultants involved in the design of both two-lane rural and/or multilane highways.
If you have questions about this NHI training, please contact NHI at
firstname.lastname@example.org or 877.558.6873.
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The National Highway Institute (NHI) has been accredited as an Accredited Provider
by the International Association for Continuing Education and Training (IACET).
In obtaining this accreditation, NHI has demonstrated that it complies with the
ANSI/IACET Standard which is recognized internationally as a standard of good practice.
As a result of their Accredited Provider status, NHI is authorized to offer IACET CEUs
for its programs that qualify under the ANSI/IACET Standard.