What system is described to help increase responsiveness in elevator services?

The system that helps increase responsiveness in elevator services is zoning. This approach divides a building into different sections or zones, with each zone being served by specific elevators that are designated for those areas. By doing so, the elevators can operate more efficiently, as they are assigned to respond to calls within their designated zones rather than servicing the entire building indiscriminately. This reduces wait times for passengers, improves traffic management, and allows for a more tailored elevator service that matches passenger needs based on their locations.

Since zoning focuses specifically on organizing elevator service according to different areas, it enhances the overall efficiency and responsiveness of the system. Other options, such as dispatching elevators or reducing contact arcing, may relate to elevator operations but do not specifically address the strategic organization of service that zoning entails. AC cycle reversal is also unrelated to improving elevator responsiveness in the context described in the question.