SIGNING TREATMENTS FOR INTERCHANGE LANE DROPS
The purpose of the interchange lane drop study was to develop a uniform method of signing to warn drivers of interchange lane drops and to guide them to their proper route or destination. The report presents recommendations for interchange lane drop signing and the analytical and empirical basis for the recommendations. It summarizes the analytical work leading to the development of recommended treatments. Included are a literature review, a state-of-the-art survey of existing treatments and a human factors analysis of the problem. Recommendations are made for exits and splits. For exits, the black-on-yellow EXIT ONLY panel, consistently applied is recommended when route continuity is maintained, and in conjunction with diagrammatics at left exits. A diagrammatic treatment without the EXIT ONLY panel is recommended at exits where route discontinuity occurs. At splits, conventional signing is recommended for certain splits without an optional lane and diagrammatics at optional lane splits and splits without an optional lane where the off-route movement is to the left of the through-route movement.
- A paper on this project appeared in TRB Transportation Research Record 600, HRIS 53 156288.
Washington, DC United States 20590
- Lunenfeld, H
- Alexander, G J
- Publication Date: 1976-6
- Pagination: 185 p.
- TRT Terms: Diagrams; Expressways; Freeways; Highway traffic control; Human factors; Human factors engineering; Interchanges; Interchanges and intersections; Lane drops; Recommendations; Research; Signs; Standards; Traffic safety
- Uncontrolled Terms: Diagrammatic signs
- Subject Areas: Highways; Operations and Traffic Management; Research; Safety and Human Factors;
- Accession Number: 00143029
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA/TO-76/01 Final Rpt.
- Files: NTIS, TRIS, USDOT
- Created Date: Oct 6 1976 12:00AM