Route detail max_speed null

i’ve a question on using the max_speed detail.
When i set the parameter detail=max_speed
the response has a node max_speed.
Sometimes there are max_speed-subnodes that have a null-value.
i understand, that if the value is null, there’s no information about this information.
My question is:
If you don’t have the information about the allowed speed,
how do you calculate the duration of the route?

There is another detail called average_speed that contains the driving speed assumed for this edge. max_speed is just the maximum speed according to the traffic signs on this road, not the speed that is used for the route calculation.

1 Like

ok, thank you

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