GEOMETRIC, CAPACITY AND SAFETY IMPACTS OF LARGE TRUCKS IN URBAN AREAS ---1987 ANNUAL CONFERENCE PROCEEDINGS: ROADS AND TRANSPORTATION ASSOCIATION OF CANADA, SASKATOON, SASKATCHEWAN, CANADA
The engineering standards used for the geometric design and capacity analysis of urban roads and inter-city highways are based largely on the requirements and properties of automobiles, with some allowances for truck characteristics. The recent and proposed shifts to much larger vehicles have resulted in some broadly based concerns about the impacts of truck configurations on the operating integrity of urban road and highway systems in Canada. This paper summarizes recent evidence on the impacts of large trucks based on a literature review and a survey of urban engineers and planners. Among the important issues that should be addressed are: 1) the braking capabilities of trucks compared to accepted braking distance standards, 2) lateral acceleration of heavy vehicles as it impacts on horizontal curve radii, and 3) impacts of trucks on traffic capacity due to their speed reduction on grades, physical size and slower acceleration. For the covering abstract of the conference see IRRD 807058.
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Corporate Authors:
Transportation Association of Canada (TAC)
401-1111 Prince of Wales Drive
Ottawa, Ontario Canada -
Authors:
- Hutchinson, B G
- Publication Date: 1987
Language
- English
Media Info
- Pagination: D3-D33
Subject/Index Terms
- TRT Terms: Braking performance; Conferences; Curvature; Highway capacity; Layout; Standards; Traffic flow; Trucks
- Uncontrolled Terms: Articulated vehicles
- Geographic Terms: Canada
- Subject Areas: Data and Information Technology; Highways; Motor Carriers; Operations and Traffic Management;
Filing Info
- Accession Number: 00487200
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Sep 30 1989 12:00AM