ABSTRACT
The traditional methods for lift traffic system design have been based on calculation or simulation. This chapter focuses on some of the advanced techniques used in calculation and simulation, and carries out a comparison between them. It also presents a typical blueprint for the lift traffic system design process. Queuing theory is presented as an alternative tool for analysing lift traffic systems. The chapter shows how queuing theory can be used to provide a reconciliation tool between calculation and simulation. It attempts to model lift passenger traffic and lift movements as chaotic systems. The use of SimEvents to simulate queue server systems can be considered a form of discrete event simulation. The chapter discusses the four criteria that will be used to compare the different methods are: simplicity/complexity, calculation time, convergence to a final value, and ability to evaluate group control algorithms, which compare the four methods: analytical calculation; numerical calculation; discrete event simulation; and time slice simulation.
