This project investigated the operations and safety characteristics of left exit lane drops. As generally recognized, constructing left exits is to be avoided; however, when present, suggestions on methods to improve safety and operations are valuable. One alternative for better communicating to motorists the presence of a left exit lane drop is with pavement markings. Lane drop pavement markings, pavement arrows, and raised pavement markings were evaluated at one site to determine their effectiveness during daytime and evening operations. Erratic maneuvers were reduced by 40 percent during daylight operations, and by 34 percent during evening operations. The predominant type of erratic maneuver within 300 ft (91.5 m) of the gore was the lane change through the gore area. The most common type of erratic maneuver upstream of the gore area was the two-lane lane change.
Improved Communication of a Left Exit Lane Drop Using Pavement Markings
1994
68 pages
Report
No indication
English
Transportation & Traffic Planning , Transportation , Road Transportation , Highway Engineering , Pavement markings , Left turn lanes , Highway design , Exits , Turning , Driver performance , Traffic management , Highway improvements , Traffic safety , Accident prevention , Traffic control , Lane changing
Effects of Pavement Markings on Driver Behavior at Freeway Lane Drop Exits
Online Contents | 1995
|Engineering Index Backfile | 1948
|Reflectorized pavement markings
Engineering Index Backfile | 1944
|Influence of Experimental Pavement Markings on Urban Freeway Exit-Ramp Traffic Speeds
British Library Conference Proceedings | 2000
|Influence of Experimental Pavement Markings on Urban Freeway Exit-Ramp Traffic Speeds
Transportation Research Record | 2000
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