Search Result for "single-lane": 
Wordnet 3.0

ADJECTIVE (1)

1. (of roads) having a single lane for traffic in both directions; when vehicles meet one must pull off the road to let the other pass; 



WordNet (r) 3.0 (2006):

single-lane
    adj 1: (of roads) having a single lane for traffic in both
           directions; when vehicles meet one must pull off the road
           to let the other pass [ant: multilane]