Title

SEARCH AND PERCEPTION - REACTION TIME AT INTERSECTIONS AND RAILROAD GRADE CROSSINGS

Authors

G J. Alexander

Document Type

Journal Article

Publication Date

1989

Subject Area

operations - traffic, infrastructure - vehicle, planning - standards, ridership - drivers, mode - rail

Keywords

Warrants (Traffic control devices), Standards, Sight distance, Reaction time, Railroad grade crossings, Perception, Motor vehicle operators, Level crossings, Junctions (Traffic), Intersections, Highway railroad grade crossings, Highway rail intersections, Grade crossings, Drivers, Driver reaction, Driver perception, Cross roads

Abstract

This paper addresses the subject of perception-reaction time related to the search for information and encourages the modification of formulas on intersection sight distance contained in 'A Policy on Geometric Design of Highways and Streets (Green Book).' The paper also suggests that an intersection geometry-based traffic signal warrant and activated train warning signal warrant be considered for adoption into the relevant standards.