We need an additional road type category - Bike Trail, or Hike and Bike Trail. This is distinct from a "Walking Trail" which is already a category, and which can be anything from an animal trail in the woods on up. Municipalities and counties in states such as Iowa have taken over railroad beds, given up by the railroads, and remade them into paved bicycle superhighways with bridges, underpasses and rest areas, with businesses fronting on them. They are both bicycle and hiker friendly, and need a category above and beyond "Walking Trail". These are increasingly common all over the US.