[Tagging] is explicit segregated tag needed on all ways allowing cyclists and pedestrians?

[Niels Elgaard Larsen]

På Sat, 2 Jan 2021 21:43:48 +0100 (CET)
Mateusz Konieczny via Tagging <tagging at openstreetmap.org> skrev:
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>Jan 2, 2021, 21:25 by voschix at gmail.com:
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>> I see no problem with the "segregated" key.
>> It is only applicable to paths that carry explicit signs for
>> bicycle=designated and foot=designted.
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>I would not go so far, explicit segregated=no on highway=footway
>bicycle=yes is not incorrect
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>> It should be surface-independent, because there are (infrequent)
>> cases of unpaved segregated foot-cyclepaths (I have seen them in
>> parks). 
>>
>How the segregation looks like in such cases? Lane "painted" with
>other color of gravel? 

There can be a narrow dividing center of grass or paving stones.

Or it could be dirt and gravel