Dictionary.com
Thesaurus.com

trafficability

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

noun

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

  2. the skill of maneuvering over a terrain.


Etymology

Origin of trafficability

First recorded in 1895–1900; trafficable + -ity