[pgrouting-users] Dijkstra vs. A-Star

Mehmet Sirin m.sirin07 at googlemail.com
Sat Nov 21 10:43:41 EST 2009


Hi,

I wonder if you could tell me which of the algorithms is better for using
routing stuff? Better means faster and more accurate..
Because i haven't noticed any difference between them when calculating
shortest path (of course with pgrouting :)) on the data of openstreetmap
(some parts of osnabrueck, lower saxony).

Everyone says that postgresql is very fast executing requests. Thats why I
thought a-star should be better and faster, as its heuristic is calculated
very quickly..

I think you know more about them and can tell me the pros and cons?

thank you
leaving you kind regards:
mehmet sirin c.
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