What is the minimum depth required for a central refuge island on a carriageway?

The minimum depth required for a central refuge island on a carriageway is considered to be 1.5 meters. This dimension is established to ensure the refuge island is wide enough to provide a safe area for pedestrians waiting to cross the road. A depth of 1.5 meters allows for adequate space for individuals to stand, taking into account the need for accessibility and the potential flow of pedestrian traffic, which is especially important in busy or high-traffic areas.

In addition to providing comfort and safety for pedestrians, this minimum requirement also facilitates the proper placement of signage and other necessary features that help inform drivers of pedestrian activity. The specified depth reflects best practices in urban design and traffic safety, ensuring that central refuge islands function effectively as protective zones for those crossing the road.