Definitions for "parkway"
A wide scenic road planted with trees.
A highway that has full or partial access control, is usually located within a park or a ribbon of park-like developments, and prohibits commercial vehicles. Buses are not considered commercial vehicles in this case. (FHWA2)
a broad, landscaped highway, often divided by a planted median strip
is an open space connector linking parks, nature reserves, cultural features or historic sites with each other and with populated areas.