What is the minimum dimension specified for the distance from the carriageway edge to an arcaded structure?

The minimum dimension specified for the distance from the carriageway edge to an arcaded structure is 500 mm. This requirement is in place to ensure pedestrian safety and smooth vehicle traffic flow. Maintaining this distance allows for a buffer zone that protects pedestrians using the arcade from any encroachments or issues related to vehicle movements, such as stray tires or debris.

Adhering to the 500 mm distance also helps to comply with globally recognized urban design principles, which prioritize safety, accessibility, and usability of public spaces. This distance is particularly important in urban areas where the crossover between pedestrian and vehicular traffic frequently occurs.

Considering the other dimensions would not provide the same level of safety or accessibility, as they fall short of the specified requirements established in building codes and regulations aimed at ensuring public welfare in such situations.