Except for a pole trailer, what is the maximum length permitted for a draw bar or coupling device between vehicles?

The maximum length permitted for a drawbar or coupling device between vehicles is 5 meters. This regulation is important to ensure safe towing practices and maneuverability, especially in commercial trucking scenarios. A shorter coupling length helps maintain better control of the trailer, reducing the risk of swaying and improving the overall handling of the combined vehicle units. Additionally, a longer coupling can lead to increased wear and tear on the vehicle's components and may not comply with standard safety regulations, which are designed to protect all road users. Thus, the 5-meter maximum length strikes a balance between operational flexibility and safety standards in the trucking industry.