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

The maximum length allowed for a draw bar or coupling device between vehicles, except for a pole trailer, is indeed 5 metres. This regulation is in place to ensure safe and effective operation when towing, as longer coupling devices can create issues with maneuverability, stability, and increased sway. A maximum length of 5 metres strikes a balance between allowing sufficient connection length to accommodate various vehicle types and configurations while limiting the risks associated with longer draws that could negatively impact handling and safety during travel. Understanding this regulation helps ensure compliance with safety standards when operating heavy trailers.