[pgrouting-users] Shortest Path with varying costs.

Stephen Woodbridge woodbri at swoodbridge.com
Mon Jan 30 16:04:12 EST 2012

On 1/30/2012 3:48 PM, Roberto Oropeza Gamarra wrote:
> Hello,
> I need to calculate the shortest path, taking into account that the cost
> of traveling beetween edges varies according to the time of day. I have
> a table of edges [my_edges(id, source, target, ...)] and other table for
> cost and reverse_cost with columns especifying the time of day in which
> that cost is applicable [my_costs(cost, reverse_cost, start_time,
> end_time,...)], the cost is the number of minutes it takes to traverse
> from source to target.
> Is there a way pgRouting can help me to calculate this special shortest
> path?

I have not tried to setup a problem and use the code for this problem, 
but we do have gsoc_tdsp branch in git that is supported to solve this 
time dependent shortest path problem. Jay Mahadeokar implemented this 
and I believe he monitors this list, so if you have some specific 
questions, check the wiki first and then post to the list and we will 
see if we can help.


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