IMPLEMENTATION OF WIDER LANE LINES TO IMPROVE SIGHT DISTANCE FROM OPPOSING LEFT-TURN LANES
Document Type
Journal Article
Publication Date
2000
Subject Area
operations - traffic, infrastructure - bus/tram lane
Keywords
Width, Sight distance, Regression analysis, Regression, Opposing traffic, Left turn lanes, Lane markings, Lane lines, Before and after studies
Abstract
Vehicles turning left at intersections from opposing left-turn lanes often restrict each other's sight distance. Previous research has developed guidelines for offsetting opposing left-turn lanes to provide adequate sight distances. Implementation of these guidelines at existing intersections typically involves reconstructing the left-turn lanes. However, the results of the before-and-after studies presented demonstrate that increasing the width of the lane lines between left-turn lanes and the adjacent through lanes also can be used as a means of improving the sight distance between opposing left-turn lanes. Regression analysis was used to determine a relationship between lane-line width and available sight distance that can be used to design lane-line widths that provide the required sight distance for opposing left-turn vehicles.
Recommended Citation
Byrd, P, McCoy, P, Pesti, G, Singh, V. (2000). IMPLEMENTATION OF WIDER LANE LINES TO IMPROVE SIGHT DISTANCE FROM OPPOSING LEFT-TURN LANES. Transportation Research Record, Vol. 1708, p. 12-19.
