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beta index

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beta index

Mathematical measurement of the connectivity of a transport network. If the network is represented as a simplified topological map, made up of nodes (junctions or places) and edges (links), the beta index may be calculated by dividing the number of nodes by the number of edges. If the number of nodes is n and the number of edges is e, then the beta index β is given by the formula:

β = n/e

The higher the index number, the better connected the network is. If β is greater than 1, then a complete circuit exists.



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