[Accessibility] How to map parts of tactile paving and other feature?

[Annemieke Vogel]

Dear all,

I have been reading up on the archive, but have not come across an
answer to my question, so I hope you can help me out.

Mapping for the blind is one of the OSM activities I wish to
contribute to, because there is not much activity on this topic
amongst the Dutch mappers, and because I live in an small city with a
institute for the blind (especially education to blind children).
Therefore there is a lot of tactile paving and other facilities in my
town, and also a group of people that can benefit from mapping these
facilities. But I can not find clear choices on how to map tactile
paving. I looked at German examples, but most of them are bus-stop
platforms or additions to traffic-light crossings. I can not find
examples of tactile paving on foot-ways along roads (only a few where
the foot-way is completely separated in a park).

So I am wondering what is the best way to map tactile paving on
foot-ways along roads (directly next to the road of only separated by
a small border of cycle-path)?
Should I only mark the nodes of the crossings? And what if a section
of the path is mark apart from crossings (example: there is place
where cars are allowed to park on the foot-way, which is extra width
at that point. There is tactile paving on the part of this foot-path
to lead the blind around the parked cars, but there is no crossing at
the beginning nor at the end of this part)?
How should I make clear that the tactile paving is only on one side of
the road, if the foot-ways are on both side?
Or should I draw all these foot-ways, even if they are directly along
roads, so I can mark the exact sections with tactile paving? I think
this last option is the most clean option, but takes a lot of work,
and this is not how others have done it so far....

Please give me some advise, as I am keen on starting mapping this
tactile paving.

-- 
With kind regards,

Annemieke Vogel

lat. 51.763047
lon. 5.728747