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ObjectVision / NetworkModel_EU

Repository for NetworkModel EU
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Unexpected, remarkably low values scattered across the map when assessing average pop-weighted travel times #8

Open jipclaassens opened 8 months ago

jipclaassens commented 8 months ago

https://github.com/ObjectVision/GeoDMS/issues/574

cjacobscrisioni commented 2 months ago

Included network generation according to strongly_connected_components, and fixed Tom Tom connectivity definitions, see 3fca2e8.

However the underlying problem is not fixed. Remarkably low values remain present even with the enacted changes, when analysing average travel times across all of the EU. When analysing travel times only within NL, the problems seem to disappear.

Overflow error?

NL, EU wide analysis (SCC) eu_wide_analysis_scc

NL, NL wide analysis (SCC) nl_analysis_scc

NL, NL wide analysis (not SCC but connected_networks nl_analysis_normal )

cjacobscrisioni commented 2 months ago

The black spots are problematic.... Next analysis: verifying what happens with NL origins / EU destinations (to be continued)

cjacobscrisioni commented 1 month ago

When using the EU network but only origins and destinations within NL the problem persists. The black spots have no destinations (within the max_travel time of 2h). The same problem does not occur with a network selected and optimised only for NL.

cjacobscrisioni commented 1 month ago

Next comparison: export of full NL-only efficient network vs subset of efficient EU network within NL boundaries.