The road measures 33.77 miles long and would take a car obeying speed limits 53 minutes to travel its length.
The B197 is a B Road and is located in the Zone 1 Highways Region.
This is a true long-distance route, journeying through numerous towns like WELWYN GARDEN CITY, Lemsford, Ayot St. Peter, WELWYN, Graveley, STEVENAGE, Woolmer Green, KNEBWORTH, and BALDOCK.
The road connects Hertfordshire and Hertfordshire.