The road measures 14.62 miles long and would take a car obeying speed limits 36 minutes to travel its length.
The B3178 is a B Road and is located in the Zone 3 Highways Region.
This is a true long-distance route, journeying through numerous towns like EXMOUTH, BUDLEIGH SALTERTON, Kersbrook, East Budleigh, Colaton Raleigh, and Newton Poppleford.
The road is located entirely within Devon.