Hi MacLondon, I just noticed that there is a duplicated section of cycleway. Namely Way: Hoe Street (1277857277) on top of Way: Hoe Street (662493479). Each is a member of a different route relation. There are more similar duplications on these cycleways to the south on Hoe Street, please see:- https://tools.geofabrik.de/osmi/?view=routing&lon=-0.01572&lat=51.57772&zoom=19&baselayer=Geofabrik%20Standard&overlays=duplicated_edges%2Cduplicated_edges%2Cduplicated_edges_areas

I'm not local so I thought you might be the person to look at this problem.

Regards Bernard.