[OSRM-talk] Question around duration of trip

[nils at gis-ops.com]

Hi Alessandro,

Yeah differences in ETA will mostly be due to traffic. Which the public osrm server obviously doesn’t have access to.

Generally, routing engines give you the cheapest path. What cheap represents depends on the software, the data loaded (traffic, elevation etc) and somewhat the user preferences (OSRM/GM less, Valhalla/Graphhopper more). It’s pretty complex and you’d need to dig deep to get the full answer to the question “what’s influencing ETA?”.

All the best
Nils

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On Sat, Nov 4, 2023 at 17:16, Alessandro Faraguna <[ajofaraguna at gmail.com](mailto:On Sat, Nov 4, 2023 at 17:16, Alessandro Faraguna <<a href=)> wrote:

> Hello,
>
> my name is Alessandro and I have recently started using osrm through its great R package (osrmr). When computing the duration of routes, I saw there is a slight difference with googlemaps when I check whether the duration is the same.
>
> That's fine as I imagine every software computes this differently but I wanted to understand if duration is an average duration (over the day/night) of the "fastest route" or the duration without traffic/at a specific time in the day?
>
> I can't seem to find an explanation in the online documentation or this option in the .lua file.
>
> Thank you
>
> Alessandro
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