hvy 1ton
Senior Member
Except for some turnpikes throughout the US, the max GCVWR isn't high enough to justify B-trains even the shorts one that are run on between the cities down there. Canada and Australia both run B doubles up to 140,000lbs, a full 60,000lbs more than the interstate cap and 10,500lbs more than the interstate's designed limit. The Kansas Turnpike bumps the gross to 120,000lbs, but they also allow vehicles to 120ft so anyone wanting to pay for all the axles just runs 2 48' vans with a single or tandem dolly between them. There isn't enough continuous road where B-doubles could be used at present to give a good return on investment.