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Modified Reliability Theory for Speed-Based Evaluation of Successive Geometric Elements
Publisher: ASCE
Abstract: The current study proposes a modified reliability theory and methodology for the speed-based evaluation of successive geometric elements such as a long tangent followed by a curve. A formulation based on lower limit and ...
Modeling 85th Percentile Speed Using Spatially Evaluated Free-Flow Vehicles for Consistency-Based Geometric Design
Publisher: ASCE
Abstract: This paper investigates the free-flow condition suitable for four-lane divided highways and proposes spatial free-flow speed–based operating speed prediction models. The 85th percentile speed (V85) of spatially evaluated ...