curved roads, OSM (Lavender Sweep, London)
http://localhost:3000/demo/#18/51.46254/-0.16404

good coverage, OSM(Fentiman Road, London)
http://localhost:3000/demo/#18/51.48022/-0.11724

http://localhost:3000/demo/#18/51.49117/-0.19861

cul-de-sac
http://interpolation.wiz.co.nz/demo/#17/39.75060/-76.66723

goethepark
http://localhost:3000/demo/#18/52.50906/13.30287

aro street
http://interpolation.wiz.co.nz/demo/#18/-41.29560/174.76492