trafficability

[ traf-i-kuh-bil-i-tee ]
/ ˌtræf ɪ kəˈbɪl ɪ ti /

noun

the condition of soil or terrain with regard to its being traveled over, as by people, vehicles, or machinery.
the skill of maneuvering over a terrain.

Origin of trafficability

First recorded in 1895–1900; trafficable + -ity