[Talk-GB] sidewalks

[Michael Collinson]

On 2019-06-01 13:26, Andy Townsend wrote:

> On 01/06/2019 11:11, Jez Nicholson wrote:
>> Brighton has also just gained a sidewalk 
>> https://overpass-turbo.eu/s/JAn which i'm not overly impressed 
>> with....or am I being a Luddite?
>>
>>
> I personally wouldn't map sidewalks in a dense UK city like that 
> (though some people do, with the intention of micromapping all the 
> dropped kerbs etc.).  It's perhaps worth mentioning that at least some 
> of the sidewalk edits there are by someone who has tended to 
> contribute well-meaning but not entirely accurate edits from afar - it 
> took me lots of additional surveys of Sutton in Ashfield* to verify 
> that many of their previous "roads" simply weren't.
>
> At first glance quite a lot of joins seem to be missing, and some 
> shops were located between the sidewalk and the road (which you've 
> just fixed).  Maybe if you're going to add a certain level of detail, 
> you can't just ignore everything else on the map, although it's pretty 
> common to do updates in stages - when mapping rural areas I'll often 
> do streams first (armchair), then roads and paths (survey) then extra 
> detail such as field boundaries, gates, stiles etc. (a mix of both).
>
> Best Regards,
>
> Andy
>
> * you could therefore perhaps describe it as "successful armchair 
> mapping" :)

I certainly concur that sidewalk mapping is not for the armchair. I 
tried, then going out to "just verify" and found that I was hopelessly 
inaccurate. It defeats the point, to get a highly accurate localised 
network for folks who might depend on it.

Mike