Author: Christian Bettstetter

Guarded by Gamora: How access control balances out waiting times in transport systems

By Pasquale Grippa, Evsen Yanmaz, Paul Ladinig, and Christian Bettstetter A transport system with passengers traveling between stations in periodically arriving cabins is considered. We propose and evaluate an access control algorithm that dynamically limits the number of passengers allowed to board the current cabin. Simulations of a ski resort lift with empirical passenger data suggests that such access control can balance out the average waiting times at different stations. The algorithm is robust against the estimation of passenger arrival and deboarding rates. A real-world test in a ski resort will follow. Status: This paper is currently under review. Preprints are provided on demand.

Packages delivered by air: Drones as delivery service

What has travelled by road to reach us until now could be delivered by drones in the future. This has many advantages: Poor rural transport infrastructure or persistent congestion in large cities can be bypassed. In 2013, Amazon was among the first to announce the intention to deliver goods using small autonomous drones. But when might this technology truly become part of our daily lives? Drone researcher Pasquale Grippa provides some answers.

Intelligent boarding to ski lifts

A novel boarding solution for cabin-based transport systems — e.g., ski lifts, cable cars, subways — is being discussed in industry and has already been implemented in the Austrian skiing resort Bad Gastein: In order to avoid long queues at succeeding boarding stations, a display in the boarding area tells the guests how many of them are allowed to enter the next cabin. This form of access control guarantees spare seats for passengers waiting at the middle station to go to the top station. The overall objective is to install fair access conditions at all stations which would automatically improve waiting time and comfort of passengers. We expect some system intelligence to compute the number of passengers to enter at each station and adapt this number in real time according to the varying passenger load. Compared to extensions or modifications of tracks, cabins, or cabin vehicles, access control would be an inexpensive solution to optimize systems. Researchers at the University of Klagenfurt and Lakeside Labs are currently assessing as to whether such access control can …