[Lecture] Modeling Tiered Security Screening Systems at Airports
time: 2016-12-19

Title: Modeling Tiered Security Screening Systems at Airports

Speaker: Prof. Zhe George ZHANG, Western Washington University & Simon Fraser University

Time: 3:00pm, December 19, 2016

Venue: Zhuanghui Hall, Building No. 12, Wushan Campus

Introduction to the Speaker:

Zhe George Zhang is a professor of Management Science in the Department of Decision Sciences at Western Washington University and a professor of Operations Management in Beedie School of Business at Simon Fraser University. He is also visiting professor of Sauder School of Business at the University of British Columbia. Dr. Zhang received his BS in Computer Science and MA in Economics from Nankai University, China; his MBA from the Schulich School of Business at York University; and his PhD in Operations Research from the University of Waterloo. Professor Zhang has published over 80 papers in prestigious journals such as Management Science, Operations Research, Manufacturing & Service Operations Management, Production and Operations Management. IIE Transactions, IEEE Transactions, Queueing Systems, Journal of Applied Probability.


We analyse a tiered airport security checkpoint at an international airport. In such a system, passengers can be classified into three categories based on the security intelligence. A two-dimensional Markov process and a Markov modulated Poisson process (MMPP) are utilized to model this type inspection systems. We first develop the formulas for the performance evaluation under a given passenger allocation policy with conditional capacity sharing in the tiered security-check system. Due to the complexity of the system and the multiple decision variables, a near-optimum inspection policy is determined by the simulated annealing method. By comparing the proposed system with the two conventional security-check systems (non-tiered and tiered without capacity sharing), we find that the tiered by system with conditional capacity sharing could improve the customer service without compromising the security quality.