Hi there

With my colleague, we are are buillding a route system by using neo4j 
2.0.3; so we are suing A* and Dijkstra algorithms in order to calculate the 
shortest path,
I was wondering if the relationships number can affect the algorithm 
perfomance. I mean, we have a graph with around 1 million (or more) of 
nodes and 50 million of relationships. We have several types of 
relationship; specifically we have:

   - relationships for cars: the most of relationships are of this type
   - relationships for bikes
   - relationships for pedestrian
   - relationships for public transports
   
When we execute Dijkstra and/or A* we can specify, in our PathExpander, the 
type of the relationships we want to consider during the traverser, so, my 
sensation is that the relationships number should not affect algorithm 
performance since we will sparsely (almost never) consider all the 
relationships types. Am I right?

Thak you
Angelo

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