Uticaj geometrijskih elemenata puta obima i strukture saobraćaja na određivanje referentnih vrednosti pri definisanju funkcionalne opravdanosti za intervenciju na putu
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The modern way of investing requires that any intervention on infrastructural facilities should be analyzed through a feasibility study. By itself, any such study must include an analysis of the functional evaluation and analysis of the economic evaluation of the intervention. The aim of this work is to define the reference values for the decision making in the analysis of the functional evaluation, when constructing the new or reconstructing the existing structures. The functional evaluation should answer the question if there is a need to undertake appropriate technical measures on the existing network in order to improve the traffic flow, and also to define the criteria in the design phase of general and preliminary designs of reconstruction or the construction of new roads: what capacity reserve at a certain level of service, should be left for servicing the growing traffic after the planned service life period. The criteria for functional evaluation are formed on the basis of the ...values of operating speed Ve and the time delay VZ of operating speed compared to the free flow speed in ideal conditions of road and traffic, and also based on the flow and capacity ratio q/C.