FREEWAY STYLE DIAGRAMMATIC SIGNS IN NEW JERSEY
Ninety-four freeway style diagrammatic signs were installed on I-287 in New Jersey, replacing 120 conventional signs at 22 interchanges. Traffic volumes and specific unusual maneuvers were counted and categorized for a seven-day period at each of 10 exit sites, both before and after the guide sign changes. The evaluation of the signs includes statistical comparisons of unusual maneuvers rates as well as visual observations. Diagrammatic or conventional signs were examined for their potential effectiveness according to the exiting situations. The adequacy of the diagram standards used for the study sign designs were reviewed and recommendations for further research are made for the sign designation of lane drops at exits, exit ramp geometry and the use of intermediate signing.
- Record URL:
-
-
Corporate Authors:
New Jersey Department of Transportation
Bureau of Operations Research, 1035 Parkway Avenue
Trenton, NJ United States 08625Federal Highway Administration
Traffic Systems Division, 1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Roberts, A W
- Reilly, E F
- Jagannath, M V
- Publication Date: 1974-8
Media Info
- Pagination: 76 p.
Subject/Index Terms
- TRT Terms: Diagrams; Freeways; Guide signs; Highway traffic control; Interchange ramps; Interchanges; Lane drops; Measures of effectiveness; Signs; Statistical analysis; Symbols; Traffic signs; Traffic surveys; Traffic volume
- Uncontrolled Terms: Diagrammatic signs; Effectiveness
- Geographic Terms: New Jersey
- Old TRIS Terms: Freeway entrances and exits; Freeway signs
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00133169
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: 75-003-7757 Final Rpt., FHWA/HPR/T-0133
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Jun 23 1976 12:00AM