This was US transportation stats - averaging city and country.  

The problem with country roads, is they are narrow and twisty with no shoulder or bike path/lane - and are actually quite dangerous when you encounter a car, even if there are fewer cars.  

Cities and suburbs have extensive bicycle infrastructure, with a network of "no motorized vehicles" paths and lanes.  Plus "secret" routes where no car could ever go that are fun to discover. 

 @300ec228 

Not in philly, though we are probably well outside the avg. In philly there are few if any bike lanes. When they exist they arent guarded. And the drivers are more than happy to kill you for sport :)

@04a10faa