Very impressive! Noticed the designation,"Tri Drive" on the fourth photo - means there are three (extra?) sets of driven wheels? Also wonder if theses trucks are allowed into densely populated areas, etc. Thank you for posting.
Thanks for looking tommy. Yes Tri-Drive refers to the three sets of driven wheels on the prime mover. Each state has its own regulations restricting road train access to high population areas and on certain roads. Many of the more heavily populated regional centres have specified road train routes outside of which road trains may not operate. Usually there will be a staging or break down area set aside on the outskirts of major towns where one or more trailers will be disconnected to allow the vehicle to enter with a single trailer for deliveries.