The road measures 8.76 miles long and would take a car obeying speed limits 16 minutes to travel its length.
The B4540 is a B Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like Whipsnade, Kensworth, Markyate, Aley Green, Slip End, and LUTON.
The road passes through several counties, including Bedfordshire, Hertfordshire, and Bedfordshire.