vehicular
adj.adj. relating to vehicles like cars, trucks, or buses. You usually see this word in formal rules about traffic or where cars are allowed to go.
adj. relating to, intended for, or involving road vehicles. Typically used in formal, legal, or urban planning contexts to distinguish car-based activity from pedestrian or rail movement.
The city center is closed to vehicular traffic today.
Urban planners are looking for ways to reduce vehicular congestion in the historic district without hurting local businesses.
The bridge was originally designed for light horse-drawn carriages and cannot support the weight and frequency of modern vehicular transport without significant structural reinforcement.
From Late Latin vehiculāris. By surface analysis, vehicle + -ar.
Used almost exclusively in formal or technical writing; typically appears before the noun it modifies.