BITUMINOUS SURFACINGS FOR LOW VOLUME ROADS IN DEVELOPING AREAS
Specific recommendations on bituminous surfacings for low volume roads in developing urban and rural areas are presented based on the results of extensive field investigations of existing roads, correlated to the variables which affect the life-cycle costs of a chosen surfacing. Variables considered include socio-economic factors, gradient, turning vehicles, maintenance capability, construction quality, surfacing thickness and drainage. The effect of these variables on surfacing performance in developing areas was found to be overshadowed by the influences of high population stress environments, institutional capacity and varying drainage standards. Surfacings are recommended which are capable of accommodating these new variables. The influences of construction quality and use of labour based construction methods are included in the recommendations. The risk profile, balance of cost between surfacing and pavement structure, and maintenance regime are discussed and the results integrated into a methodology for selecting a cost-effective surfacing. (A) For the covering abstract of the conference see IRRD 873950.
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Corporate Authors:
STEERING COMMITTEE CAPSA '94
PO BOX 6946
ROGGEBAAI, South Africa 8012 -
Authors:
- Emery, S J
- van Zyl, G D
- VOS, R M
- Conference:
- Publication Date: 1994
Language
- English
Media Info
- Features: References;
- Pagination: II75-II91
Subject/Index Terms
- TRT Terms: Bitumen; Conferences; Developing countries; Drainage; Low volume roads; Maintenance; Surfacing
- Geographic Terms: South Africa
- ITRD Terms: 4963: Bitumen; 8525: Conference; 150: Developing countries; 2937: Drainage; 2774: Low traffic road; 3847: Maintenance; 8103: South Africa; 2972: Surfacing
- Subject Areas: Highways; Hydraulics and Hydrology; Maintenance and Preservation;
Filing Info
- Accession Number: 00714392
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Dec 27 1995 12:00AM