SIGHT DISTANCE REQUIREMENTS OF RURAL ROADS -A REVIEW
Sight distance is a basic element of geometric road design and the standards set for minimum acceptable values of sight distance have a direct bearing on the cost of a road. This paper sets out the results of a study into the sight distance requirements of rural roads. This study involved a literature search, examination of some research results, and an analysis of the practices of various road authorities. While clear cut guidelines for the setting of minimum standards were not found in the literature or in the results of research, it was concluded that sufficient knowledge existed to enable satisfactory standards to be set. The traditional concepts of stopping and overtaking sight distance are examined and it is concluded that a different approach may be warranted. Different bases for the assessment of the minimum sight distance requirements and for overtaking requirements are suggested and values for design are given. While the various aspects of rural sight distance requirements are discussed, particular attention is given to the design of crest vertical curves. /Author/TRRL/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00050164
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Corporate Authors:
ARRB
Melbourne, Victoria Australia -
Authors:
- LOUIS, L J
- Publication Date: 1977-6
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 32-44
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Serial:
- Australian Road Research
- Volume: 7
- Issue Number: 2
- Publisher: ARRB
- ISSN: 0005-0164
Subject/Index Terms
- TRT Terms: Alignment; Braking performance; Curves (Geometry); Guidelines; Headlamps; Height; Highway design; Layout; Low volume roads; Passing; Reviews; Rural areas; Rural highways; Sight distance; Standards; Visibility distance
- Uncontrolled Terms: Horizontal; Vertical; Vertical curvature
- ITRD Terms: 2894: Alignment; 1695: Braking distance; 1342: Headlamp; 6489: Height; 9029: Horizontal; 2885: Layout; 1822: Overtaking; 328: Rural area; 9087: Vertical; 6783: Visibility
- Subject Areas: Design; Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure; I73: Traffic Control; I82: Accidents and Transport Infrastructure;
Filing Info
- Accession Number: 00165696
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Report/Paper Numbers: Analytic
- Files: ITRD, TRIS, ATRI
- Created Date: Apr 26 1978 12:00AM