Author:Schutte, IC; Roodt, LDe VDate:02 Jun 2009Speed 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 ...Read more
Author:Curtayne, PC; Walker, RNDate:26 Jan 2009The need for describing the condition of pavements occurs frequently in highway engineering. Accurate descriptions are a prerequisite for establishing procedures with which to evaluate the various aspects of the pavement condition. A variety ...Read more