Would be really great if I could see what the speed limits are on roads so when I plan a route I can avoid all those 30mph\50kph roads. You could colour code the roads for different speeds.
Yes, that would be nice.
Don't kow if we can get this information, but we can give it a try.
If you can calculate times for a route you must have speed limit information - yes ?
But these are hard data, we can not use it separately.
Apis are available to pull this data (along with things like speed bumps) from OSM - EG - www.overpass-api.de/api/xapi?*[maxspeed=*][bbox=5.6283473,50.5348043,5.6285261,50.534884]
They are also available for Google and Here maps. I presume Tomtom provide the same. Would be a great feature to be able to avoid the slow roads