Academy & Industry Research Collaboration Center (AIRCC)

Volume 12, Number 03, February 2022

Investigation of Optimization Techniques on the Elevator Dispatching Problem


Shaher Ahmed, Mohamed Shekha, Suhaila Skran and Abdelrahman Bassyouny, The German University in Cairo, Egypt


In the elevator industry, reducing passenger journey time in an elevator system is a major aim. The key obstacle to optimising elevator dispatching is the unpredictable traffic flow of passengers. To address this difficulty, two main features must be optimised: waiting time and journey time. To address the problem in real time, several strategies are employed, including Simulated Annealing (SA), Genetic Algorithm (GA), Particle Swarm Optimization Algorithm (PSO), and Whale Optimization Algorithm (WOA). This research article compares the algorithms discussed above. To investigate the functioning of the algorithms for visualisation and insight, a case study was created. In order to discover the optimum algorithm for the elevator dispatching problem, performance indices such as average and ideal fitness value are generated in 5 runs to compare the outcomes of the methods. The goal of this study is to compute a dispatching scheme, which is the result of the algorithms, in order to lower the average trip time for all passengers. This study builds on previous studies that recommended ways to reduce waiting time. The proposed technique reduces average wait time, improves lift efficiency, and improves customer experience.


Stochastic Optimization, Elevator Dispatching Systems, Meta-Heuristics Optimization Techniques.