[OSRM-talk] OSRM suggests alternative route a few times

[Daniel Hofmann]

There's an alternatives=n option you can use to request up to n
alternatives (if available).

Here are the constants for pruning alternative candidate paths:

https://github.com/Project-OSRM/osrm-backend/blob/02712cd513bca1b49d867085e80c608a53b7bb03/src/engine/routing_algorithms/alternative_path_mld.cpp#L37-L52

you can tune them to trade off between quality and quantity.

More insights here:

- https://github.com/Project-OSRM/osrm-backend/issues/3905
- https://github.com/Project-OSRM/osrm-backend/pull/4047

HTH,
Daniel J H

On Sun, Jan 21, 2018 at 4:27 PM, Behizz <behizz at gmail.com> wrote:

> Hello guys
>
> I'm using the latest OSRM version and I use the partition-customize chain
> for building the model and getting more alternatives. But OSRM suggests
> alternative routes a few times although there are so many good alternative
> routes based on weights.
>
> Is there any way to force it to return more alternatives?
>
> Thanks
>
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