DIAGRAMMATIC GUIDE SIGNS AT TRAFFIC CIRCLES
This report covers the third study of an overall project entitled "Public Understanding and Acceptance of Traffic Control Devices." In the Nation's Capital are found many monumental avenues named for the several states of the union. These are broad thoroughfares. They run diagonally across traditional north-south, east-west city streets. Complex intersections, formed by streets and avenues have been fashioned into traffic circles. Oft times these multi-lane interchanges of traffic flow give rise to confusion among vehicle operators visiting the City, as well as those who claim Washington as home. The new Manual on Uniform Traffic Control Devices encourages use of pictorial messages. It was decided to offer one type to motorists at a circle and test drivers' actions. Behavior patterns extant were evaluated. A map type diagrammatic sign was designed and erected at the entrance of a heavily traveled avenue subsequent traffic flow was observed. Drivers were queried as to their evaluation of the sign. Effectiveness as a safety measure was determined. By all tests the sign proved to be worthy. An implementation plan is developed for installation of similar signs at other circles.
District of Columbia Dept of Highways and TrafficBureau of Traffic Engineering and Operations
Washington, DC United States 20004
- KRAFT, M A
- Publication Date: 1973-6
- Features: Appendices; Figures; Tables;
- Pagination: 33 p.
- TRT Terms: Diagrams; Drivers; Reaction time; Signs; Traffic circles; Traffic control devices; Traffic flow
- Uncontrolled Terms: Diagrammatic signs; Driver reaction
- Subject Areas: Highways; Operations and Traffic Management;
- Accession Number: 00260441
- Record Type: Publication
- Report/Paper Numbers: HPR-1(9)-626 Res. Rpt.
- Files: TRIS, STATEDOT
- Created Date: Oct 11 1974 12:00AM