The accessibility of nodes in the Belgian road network |
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| Authors: | Walter De Lannoy Dirk Van Oudheusden |
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| Institution: | 1. Geografisch Instituut, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
2. Centrum voor Statistiek en Operationeel Onderzoek, Vrije Universiteit Brussel, B-1050, Brussels, Belgium
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| Abstract: | This paper presents an analysis of the accessibility of nodes in the Belgian road network. The intersection of roads are considered as the nodes and their connecting roads as the edges of a network. By means of the Dijkstra algorithm accessibility values are computed for each node by summing shortest travel times to a reference system of 158 nodes spread evenly over the Belgian territory. A comparison of the measured actual accessibility with that determined from an optimal situation provides an indication of the quality of directness of the Belgian road system. Accessibility and directness are shown cartographically. An isochronal map illustrates the access to Brussels. |
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