The road measures 8.05 miles long and would take a car obeying speed limits 18 minutes to travel its length.
The B156 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 Northaw, POTTERS BAR, Cuffley, Goffs Oak, Cheshunt, and Turnford.
The road is located entirely within Hertfordshire.