Abstract

The paper presents a theoretic analysis of the indicators used to evaluate the road network connectivity. The experimental research was performed to compare the influence of the one-way streets in the network (Scenario 1) with a network containing only two-way streets (Scenario 2) using the indicators of the full road network (network diameter, cyclomatic number) and also indicators that assess the relative position of each network node in relation to the network as a whole (i.e. the Alpha, Beta, Gamma, Eta indicators). Each of the two cases analyzed starts from the primal graph composed by the most important intersections as nodes and the connecting streets as arcs, and the connectivity matrix and also for the dual graph, in which the links are nodes and the intersections are arcs. The analysis involves the determination of changing of the indicators when changing the network model. In this way can be identified the nodes with highest and lowest connectivity, and the most accessible nodes.

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