[pgrouting-users] Housenumbers as multiple stops route with Pgrouting

[Daniel Kastl]

Hi Matteo,

Your use case looks a bit like garbage collection.
There exists a new function to solve the Chinese Postman Problem:
https://docs.pgrouting.org/latest/en/chinesePostmanProblem-family.html
But it doesn't consider capacity constraints.

With some funding it might be possible to implement such a function.
There are other things that can make such a use case more complicated, for
example stop points need to be accessed from a certain side of the road,
ie. because loading can be done only on the left or right side.

One remark regarding your data: it seems that you have a lot of stop points
along each road segment.
It might simplify your problem, if you can allocate all points to a street
segment and handle all stop points of that segment or none of them.

Best regards,
Daniel






On Mon, 7 Dec 2020 at 18:22, Matteo Ruggieri <matteoruggieri91 at gmail.com>
wrote:

> Good morning,
>  As the title says, how do I create a routing with multiple stops?
> Currently I have uploaded on Postgis the nodes and edges of the road graph
> but I want the stops to match the housenumbers. The ideal work would be to
> implement the time windows of each stop and the capacity of the vehicle
> (once reached the max capacity, the vehicle must return to a point 0,
> resume the route and then complete it). Which is the best algorithm to
> solve this problem?
>
> *Here is a small area of housenumbers and nodes (orange points) on QGIS*
>
> [image: Screenshot (6).png]
>
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-- 
Georepublic UG & Georepublic Japan
eMail: daniel.kastl at georepublic.de
Web: https://georepublic.info
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