ABSTRACT
This chapter discusses the main characteristics of the down peak traffic condition. There is important aspect of lift behaviour during a down peak traffic situation, which is the effect of the traffic control system. The down peak percentage number of stops is the average number of stops per trip during a down peak traffic situation, measured as a percentage of a reference value. Bearing in mind the effect of the traffic control system cycling the cars to groups of floors, it is now possible to consider the quality of service. The simulation analysis shows that the down peak lift performance is heavily dependent on the control policy. For most lift systems, in order to make full use of the down peak handling capacity, it is necessary to allow for higher average passenger waiting times than those encountered during uppeak traffic.
