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dc.description.abstractThe provision of an adequate road system must be regarded as an essential part of a program of economic development. The paper examines what is meant by 'adequate' and adopts as a criterion the concept of lowest total transport cost over the life of the investment. It is suggested that rigidly applied road standards are clearly inappropriate in developing countries and that a program of stage construction should be used supported by a well planned maintenance program. One exception is likely to "be in urban areas where traffic flows are particularly heavy. In this situation the use of road standards established in developed countries is appropriate but modifications due to climate and traffic composition are discussed. Benefits resulting from road improvements, (reductions in operating costs,maintenance costs and time savings) are described and it is suggested that relationship between such costs and road characteristics should provide the basic index, as well as a method of establishing optimum standards. A method using vehicle speeds is discussed in detail.More complex methods are described briefly but the paper points out that whatever approach is adopted it is essential that adequate data are available.It is suggested that all countries should examine how they stand in relation to the data needed to take decisions on road investment and that any deficiencies are rectified. Pavement design must receive attention and account must be taken of the characteristics of local materials and climatic conditions. The analysis of road maintenance problems can only be done on the basis of local studies, extrapolation from one country to another being hazardous. Finally the paper indicates the difficulties of transferring results obtained in one country to another but points out that the basic principles discussed can be utilized by every country in preparing its own policy for road standards.en
dc.titleThe choice of standards for African roadsen
ags.descriptionNotesOrganized by the Economic commission for Africa with the co operation of the British and French governments.en
ags.publisherPlaceAddis Ababaen
ags.publisherNameUN. ECA,en
ags.citationTitlePaper Fen
dc.coverage.spatialAFR
dc.coverage.spatialAfrica
dc.date.accessioned2011-01-07T18:19:38Z
dc.date.available2014-04-15T08:08:57Z
dc.date.issued1974-04
dc.identifier.urihttps://hdl.handle.net/10855/2024
dc.format.extent33 p.
dc.languageeng
dc.typeConference document
uneca.subject.fulltaxonomyUNBIS::INDUSTRY::INDUSTRIAL DEVELOPMENT SUPPORT SERVICES::QUALITY CONTROL
uneca.subject.fulltaxonomyUNBIS::INDUSTRY::CONSTRUCTION INDUSTRY AND ENGINEERING::ROAD CONSTRUCTION
uneca.subject.fulltaxonomyUNBIS::INDUSTRY::CONSTRUCTION INDUSTRY AND ENGINEERING::BUILDING STANDARDS
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::SERVICES D'APPUI AU DEVELOPPEMENT INDUSTRIEL::CONTROLE DE QUALITE
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::DESARROLLO INDUSTRIAL Y SERVICIOS DE APOYO::CONTROL DE CALIDAD
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::INDUSTRIES ET TECHNIQUES DE LA CONSTRUCTION::CONSTRUCTION DE ROUTES
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::INDUSTRIA E INGENIERIA DE LA CONSTRUCCION::CONSTRUCCION VIAL
uneca.subject.fulltaxonomyUNBIS::INDUSTRIE::INDUSTRIES ET TECHNIQUES DE LA CONSTRUCTION::NORMES DE CONSTRUCTION
uneca.subject.fulltaxonomyUNBIS::INDUSTRIA::INDUSTRIA E INGENIERIA DE LA CONSTRUCCION::NORMAS DE CONSTRUCCION
uneca.workflow.processedtrue
ags.creatorPersonalBonney, R.S.P.
ags.creatorPersonalLeger, P.
ags.creatorPersonalJacobs, G.D.
ags.creatorPersonalAutret P.
ags.creatorCorporateUnited Nations. Economic Commission for Africa
ags.creatorConferenceUN. ECA conference on highway engineering in Africa (1974, April Addis Ababa)
ags.subjectThesaurusQUALITY CONTROL
ags.subjectThesaurusROAD CONSTRUCTION
ags.subjectThesaurusBUILDING STANDARDS
ags.subjectThesaurusCONTROLE DE QUALITE
ags.subjectThesaurusCONTROL DE CALIDAD
ags.subjectThesaurusCONSTRUCTION DE ROUTES
ags.subjectThesaurusCONSTRUCCION VIAL
ags.subjectThesaurusNORMES DE CONSTRUCTION
ags.subjectThesaurusNORMAS DE CONSTRUCCION
ags.subjectClassification05.01.01 Ports
ags.subjectClassification06.01.02 Industrial policy and management
ags.availabilityNumber15444
ags.availabilityNumber1974
ags.availabilityLocationECA-HQ
ags.rights.termsofusepublic
ags.JN15444
uneca.language.supporteden


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