[pgrouting-users] Dangling sub-networks

[Hans Skov-Petersen]

Hi list

I realize that the network (OSM) I am working on is not always connected as it should (big surprise ☺)…. Some parts are disjoint from the rest – even when not being situated on islands, or other places where a disjoint is expected. Accordingly, routes from nodes on such sub-nets cannot be generated.

Is there a way to identify (and potentially delete) such minor sub-nets? For instance by asking for the aggregated length of edges of a sub-net.


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Hans Skov-Petersen
Professor of Geoinformatics

University of Copenhagen
Department of Geosciences and Natural Resource Management
Section of Landscape Architecture and Planning
Rolighedsvej 23
DK-1958 Frederiksberg


DIR +45 35 33 18 16
MOB +45 23 82 80 45
hsp at ign.ku.dk<mailto:hsp at ign.ku.dk>

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