Free-flow speeds for representative road and terrain types

Schutte, ICRoodt, LDe V2009-06-022009-06-022009-06-02Schutte, I. & Roodt, L.V. 2009. Free-flow speeds for representative road and terrain types. (RR 91/117). http://hdl.handle.net/10204/3410 .http://hdl.handle.net/10204/3410This report is a publication by the National Department of Transport, South Africa, made available by the CSIRSpeed plays an important role in the justification of road infrstructure projects. It affects both vehicle operating cost and travel time cost. If incorrecr values for speed are used in the economic analyses of transport projects, incorrect investment decisions can result. This study was intended to verify the values for free-flow speed given in the look-up tables of programs CB-Roads by means of speed measurements on selected road sections. This report explains the speed experiment and gives the results. Information from other studies was used to supplement the study results in developing a matrix of free-flow speeds similar to that used in previous versions of CB-Roads.enFree-flow speedSpeed modelRoad typeTerrian typePavement conditionCB RoadsFree-flow speeds for representative road and terrain typesReportSchutte, I., & Roodt, L. V. (2009). Free-flow speeds for representative road and terrain types (RR 91/117). Retrieved from http://hdl.handle.net/10204/3410Schutte, IC, and LDe V Roodt Free-flow speeds for representative road and terrain types. RR 91/117. 2009. http://hdl.handle.net/10204/3410Schutte I, Roodt LV. Free-flow speeds for representative road and terrain types. 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/3410TY - Report AU - Schutte, IC AU - Roodt, LDe V AB - Speed plays an important role in the justification of road infrstructure projects. It affects both vehicle operating cost and travel time cost. If incorrecr values for speed are used in the economic analyses of transport projects, incorrect investment decisions can result. This study was intended to verify the values for free-flow speed given in the look-up tables of programs CB-Roads by means of speed measurements on selected road sections. This report explains the speed experiment and gives the results. Information from other studies was used to supplement the study results in developing a matrix of free-flow speeds similar to that used in previous versions of CB-Roads. DA - 2009-06-02T07:19:47Z DB - ResearchSpace DP - CSIR KW - Free-flow speed KW - Speed model KW - Road type KW - Terrian type KW - Pavement condition KW - CB Roads LK - https://researchspace.csir.co.za PY - 2009 T1 - Free-flow speeds for representative road and terrain types TI - Free-flow speeds for representative road and terrain types UR - http://hdl.handle.net/10204/3410 ER -