noun, noun which may take the genitive case particle 'no'
roadside; wayside; along the route
Refers to the area along a road or route, often used in contexts like events, spectators, or facilities lining a street.
マラソンの沿道には大勢の観客が集まった。
A large crowd gathered along the marathon route.
沿
The roadside shops get very crowded on festival days.