Intersections chosen for study included three geometric types, each with left-turn lanes included as element of intersection; introduction of color was limited to island area preceding left-turn area and left-turn land itself; island was paved with yellow asphalt and turning lane with green; study consisted of evaluation of vehicle velocity through intersection, lateral placement of vehicles entering left-turn lane, and channelizing effect of through vehicles; before-and-after procedure was used to analyze effectiveness of color.
Colored pavement for traffic guidance
Nat Research Council -- Highway Research Board -- Research Rec
1968
14 pages
Article (Journal)
English
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Engineering Index Backfile | 1968
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