What is the purpose of a yellow parking zone?

The purpose of a yellow parking zone is primarily for passengers or freight loading. These zones are designated to facilitate quick and efficient pick-up and drop-off of passengers or luggage, which is essential in busy areas where parking space is limited. Yellow curb markings signal to drivers that stopping is allowed, but typically for a restricted time and usually only when actively loading or unloading people or goods. This regulation helps keep traffic flowing in high-demand areas and prevents congestion. Other options, such as permit only parking or long-term parking, serve different regulatory functions and would be marked in other colors or designated differently. The emergency call box area also has a specific purpose unrelated to parking regulations.