What type of control is required for the car operating control of sidewalk elevators according to code?

The requirement for constant pressure control for the car operating control of sidewalk elevators is based on safety considerations and operational effectiveness. Constant pressure control means that the user must maintain pressure on the control button or switch for the elevator to operate. This ensures that the elevator only moves when actively commanded by the operator, which enhances user safety by preventing unintended movement and allowing the operator to stop the elevator immediately by releasing the control.

This design aligns with the specific safety protocols outlined in the relevant codes, which are established to protect both passengers and operators. It minimizes potential danger, especially in busy pedestrian areas where sidewalk elevators are often located. Additionally, constant pressure control is straightforward and easy to understand, making it user-friendly for individuals who may not be familiar with elevator operation.

In contrast, variable speed control, automatic control, and remote control may not provide the same level of user intervention and control during operation, potentially creating a riskier environment, particularly in the case of sidewalk elevators that interface directly with foot traffic.