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I want to create shortest route tool using pgRouting. But I digitised roads in a random manner. Shall I need to give a separate row for each road segment?

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You need to understand the Topology for pgrouting pgrouting.org/docs/howto/topology.html – Mapperz Apr 22 '13 at 17:45
    
Creating Network Topology for pgrouting ftp.remotesensing.org/pgrouting/foss4g2010/workshop/docs/html/… – Mapperz Apr 22 '13 at 17:47
    
@Mapperz Ya I read the both, but my question is : for suppose if I have a long road to which many small roads are connected. Now, shall I need to split the long road in to small segments or simply a long road with start and endpoint – Jeevan Patnaik Apr 22 '13 at 17:59

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