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When calculating matrices for a small area in a big street network, it is possible to speed up calculations by restricting calculations to the relevant part + a buffer.
Experience show a factor 2 can be obtained in the best case.
If the buffer gets specified too small, you risk not finding the correct route or even not finding a route at all.
We recommend using 5 km for urban areas, in more rural areas use a larger value.
If you use 0 or a negative value, the whole network is considered (default).
Default: 0 km
Property MatrixBuffer: double;