[Talk-GB] National Cycle Network discrepancies between Sustrans and OSM data

[Matthew Newton]

On 25/02/2023 20:45, Ian Dent wrote:
> I’ve created a coarse visualisation of the differences...
> I know the Derbyshire NCN fairly well and have found that most of the 
> discrepancies are due to errors in the Sustrans data rather than OSM and 
> suspect this may be the case across the country.

NCN 6 in Loughborough - I checked your map and OSM is more accurate by far.

For example the blue Sustrans route goes through the middle of a house, 
and straight across a roundabout. In several places it splits into 
needless, or invalid, double or triple paths.

I have fixed everything I could see - some small alignment tidying, and 
one error where OSM and Sustrans were both incorrect going through an 
always locked gate at the end of Coe Avenue (the only usable path here 
is a narrow footway with a cycle barrier and small gate at the end, 
meaning it's not a particularly accessible part of the route even on a 
normal bicycle).

-- 
Matthew