What does a white painted curb indicate?

Answer: B — Loading and unloading of passengers only

A white painted curb indicates designated areas for the loading and unloading of passengers only. This means that vehicles are allowed to stop temporarily to let passengers get in or out but cannot remain parked for longer periods. It is important for these areas to be kept available for pickup and drop-off activities, ensuring that traffic flows smoothly and that other vehicles do not obstruct these actions. In contrast, other curb colors have different meanings: a red curb usually signifies no parking at any time, a blue curb indicates parking for people with disabilities, and yellow may signal loading zones or commercial vehicle restrictions. Therefore, understanding the meaning of curb colors is crucial for adhering to parking regulations and promoting safety on the roads.