Creation of a Connectivity Matrix with a Link Table

A links table can easily be used to construct a connectivity matrix, a core element for measuring accessibility. It can be achieved by using the simple algorithm:

• The values of all the cells C_ij in the connectivity matrix C are set to 0. The default assumption that nodes are not linked.
• For each record of the links table, the link becomes a connection (value of 1).
• For each record of the links table, an inverted connection is created if the link is bi-directional.