Which reflective stud color marks the left-hand side of the motorway?

The reflective stud color that marks the left-hand side of the motorway is red. This is an established convention in road marking where different colors represent specific meanings to aid drivers in navigation and safety.

The red studs provide a clear indication of the left boundary of the road, which helps drivers stay within the lanes while driving, particularly in low visibility conditions. Understanding the color-coding system used on motorways is essential for safe driving and responding appropriately in emergency situations. Recognizing red as the color for the left-hand side can alert drivers to their position relative to the road edges, ensuring they avoid veering off onto the shoulder or into other hazards. This knowledge is vital for emergency response drivers who need to navigate safely and efficiently on motorways while attending to urgent situations.