[pgrouting-users] Restriction cost in pgr_trsp results

Stephen Woodbridge woodbri at swoodbridge.com
Mon Feb 15 08:33:25 PST 2016


https://github.com/pgRouting/pgrouting/issues/491

On 2/15/2016 11:00 AM, Rémi Cura wrote:
> Hey,
> querying the edge table should be efficiently done in 1 query,
> the optimal syntax depending on how much edges you have in your result.
> Cheers,
> Rémi-C
>
> 2016-02-15 16:54 GMT+01:00 Daniel Urda <daniel.urda.ct at gmail.com
> <mailto:daniel.urda.ct at gmail.com>>:
>
>     Hello,
>
>     As far as I understand, when using TRSP, the cost column in the
>     results only includes the cost for traversing the respective edge,
>     without taking into account the cost for actually arriving on that
>     edge (e.g. the cost of a restriction which has the current edge as
>     to and the previous one as from).
>
>       Is there a way to get such costs (besides the obvious, but rather
>     inefficient way, of querrying the restriction table for each pair of
>     consecutive edges in the computed way) ?
>
>     Best regards,
>     Daniel U
>
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>
>
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