Analysis of design hourly volumes in the procedures for creating project solutions of roads
In the process of planning, designing and defining the necessary arguments for making investment decisions in the proposed solutions of the road or network, an important place is occupied by the evaluation of the design solutions. The term evaluation considers the definition of arguments on the basis of which decisions are made, that determine when, where and which of the planned solutions become a reality or remain unrealized ideas. For effective calculations of the total benefits in analytical methods, parameters of traffic flow have important role, especially AADT and design hourly volumes (DHV). However, the problem arises in the case of misuse of DHV in the phases of design and evaluation. Directions suggest and obligate analysts to analyze DHV by class, which is rarely done in practice. For this reason, this paper has conducted a general analysis of DHV on the network of roads in the Republic of Serbia for the period from 2011 to 2015. Special importance was placed on the nature of traffic flows, time imbalances, flow distribution by class and analysis of operating speed based on design hourly volumes and classes of traffic flow. The results of this paper should enable better implementation of analysis in the phases of design, operational and economic evaluation of road projects.
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