|Access permission for road train B-double|
|Used on these elements|
|Tools for this tag|
Legal access permission for.
A B-double (B-Train) consists of a prime mover towing a specialised trailer (known as a "lead" or "A"-trailer) that has a fifth-wheel mounted on the rear towing another semi-trailer, resulting in two articulation points.
There is another more generic access tag roadtrain=*.
For values see access=*.