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Network analysis is based on a topologically structured network. We will
describe two types in this chapter: shortest path analysis, and network
zone analysis.
Shortest path analysis is used to find a route of minimum cost from one point to another along the network. If the cost is distance, then a path of shortest distance will be calculated. This kind of analysis is particularly useful for dispatching emergency vehicles such as fire engines. Other than distance, you can assign other measurements such as length of travel time as a cost. A network zone extends from on point to reach branches of the network within a specified cost. For instance, we can identify all the streets that could be reached within 10 minutes driving time from a police station. The network analysis software is a separate module that has to be loaded before you can use it.
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Load the network module.
Display street network. Display only themes 60 and 70 for the analysis.
Find the shortest path between two points.
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