Traffic in Lucerne (© BY-​NC 4.0 / M. Malinowski / GGWash)

In order to meet the increasing demand for mobility and, above all, to reduce the resulting problems such as congestion, time loss, negative impacts on the environment, etc. in urban regions, a large number of traffic management approaches have been developed and implemented in recent decades. A major focus is on an efficient timing of traffic-light signal systems (VLSA) in order to be able to react flexibly to varying demand.

Roland Müller Küsnacht AG has developed an innovative method for this technical challenge that enables a dynamic, decentralized, and flexible control of VLSA systems. This system was evaluated in a field study in Dresden (Germany), where significant reductions in waiting time for all road users were achieved. Another field study is to be conducted in co-operation with the city of Lucerne. To ensure an independent monitoring of the study, a before/after evaluation of the traffic situation is proposed, which will allow a quantitative assessment of the performance of self-control. For this purpose, data from detectors and signal groups will be analyzed before implementation and common traffic variables will be calculated, which will subsequently be compared with the data analysis of the self-control.


A. Genser


City of Lucerne, Traffic Management Department

Project timeframe

2019 – 2020