Which of the following is NOT a factor in procedures for curbing?

The procedures for curbing involve various considerations that ensure safe and efficient bus operations. Among these factors, the number of passengers is not a direct consideration when curbing a bus. Instead, curbing is primarily influenced by the physical environment around the bus, such as the loading zone configuration, the type of bus being operated, and the amount of space available to maneuver the bus safely.

Loading zone configuration informs how buses can align and stop. Different configurations may require different approaches for safety and efficiency. The type of bus is also critical, as different bus models may have varying sizes and handling characteristics that influence how drivers should position and curb them. Similarly, the amount of space available around the bus directly affects its ability to maneuver, especially in tight urban settings where curbing is often required.

In contrast, while the number of passengers can impact the overall operations of a bus service, it does not influence the specific procedures for curbing, which are more focused on the logistics of bus positioning rather than the passenger count.