Which color stud would you see when going the wrong way up a carriageway?

When navigating a carriageway, seeing a red stud indicates that you are driving the wrong way. Red is universally recognized as a color that signals danger or indicates a stop requirement. In the context of road markings, red studs are used to highlight the edges of carriageways and denote that vehicles should not be moving toward them.

This system aids in maintaining safe driving practices by providing immediate visual cues, especially in low-light conditions or during adverse weather. Drivers trained in emergency response and ambulance driving are particularly attuned to these warning signals, as they play a crucial role in ensuring not only their safety but also the safety of other road users. Understanding that red marks signify a hazardous situation reinforces the importance of adhering to road signs and markings when responding to emergencies.