News
In the frame of the Initiative for Interdisciplinary Regional Development (IIRD), TUM International GmbH, Airbus Defence and Space and Technical University Munich (TUM) cooperated to build a traffic microsimulation model to understand the impact of the design and organization of entrance gates to a major oil field in the Gulf region. As enhanced security screening of vehicles and passengers became necessary, a traffic microsimulation model was developed to test various screening processes. The model simulated single and double-occupancy passenger cars, buses and trucks. Different screening facilities for each vehicle type were tested. In particular, individual iris scans and vehicle X-Ray screening were expected to increase processing times of vehicles. A total of 19 scenarios were explored to expedite the screening process of vehicles and persons entering the site.

The traffic microsimulation model was built with the PTV software Vissim, which allows tracing and visualizing individual vehicles entering the site while being processed through security screening. Evaluation criteria for each screening configuration were vehicle-hours delay and maximum queue length. Video animations were created to visualize traffic flows under different scenarios. 
 
Figure: Simulation of queuing cars (bottom lanes), trucks (center lanes) and buses (top lanes)

Special attention was given to bus passengers, who have to leave the bus for individual screening, before they can re-enter the bus on the other site of the passenger screening facility.


Figure: Dots represent passengers who leave the bus, go through a screening process and re-enter the bus on the other side of the screening facility.

While the delay in the peak hour was not unusually high, it turned out that the accumulated delay over hours became severe in some scenarios. Stricter screening procedures increased the average waiting time significantly. Different scenarios were tested to reduce waiting times while maintaining secure screening procedures.


Figure: Accumulated delays in various scenarios for one of the simulated gates

The simulation will be used as blue print for further simulation of security scenarios at critical infrastructure sites and the development of the IIRD tool for integrated spatial planning.
 
Contractor: Airbus Defence and Space GmbH, in cooperation with TUM International GmbH
Duration: June 2019 – September 2019