The difference between Footway and Pavement

When used as nouns, footway means a passage for pedestrians only, whereas pavement means any paved floor.

check bellow for the other definitions of Footway and Pavement

Pavement as a noun:

Any paved floor.
Pavement as a noun (chiefly, British):

A paved footpath, especially at the side of a road.
Pavement as a noun (US):

Any paved exterior surface, as of a road or sidewalk.
Pavement as a noun:

The interior flooring, especially when of stone, of large buildings such as a cathedral.