Acceleration, deceleration, and stopping sight distance (SSD) criteria are necessary considerations for determining geometric design requirements of roadways. Acceleration and deceleration are influenced by many factors, including grade, vehicle type, and maneuver type. Stopping sight distance is influenced by factors such as brake reaction time, object height, and driver’s eye height.
NCHRP Research Report 1081: Acceleration, Deceleration, and Stopping Sight Distance Criteria for Geometric Design of Highways and Streets, from TRB's National Cooperative Highway Research Program, presents enhanced guidance on acceleration and deceleration and SSD criteria for the geometric design of highways and streets that may be appropriate for consideration in future updates of the 2018 AASHTO Green Book criteria.
National Academies of Sciences, Engineering, and Medicine. 2024. Acceleration, Deceleration, and Stopping Sight Distance Criteria for Geometric Design of Highways and Streets. Washington, DC: The National Academies Press. https://doi.org/10.17226/27490.
|Chapter 1 - Introduction
|Chapter 2 - Background and Pertinent Literature
|Chapter 3 - Research Approach and Analysis
|Chapter 4 - Conclusions and Proposed Revisions
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