Methods for integrating control algorithmsudof light signal systems for variousudsimulation environments with specialudconsideration of public transport

摘要

Simulation is a crucial part of today’s research and development due to its high efficiency.udIt is mostly effiective in environments where otherwise high costs or even lives were to beudput on stake for testing new approaches. This is both the matter of fact when facing theuddomain of traffic control. If a traffic light system is malfunctioning the result can varyudfrom a traffic jam, which would create an economic loss on a regional level. This mightudincrease over time if this malfunction is persistent and even lead to accidents that costudlives. For example when all lights at an intersection show green the same time. To avoidudall that it is very important to test everything that goes live on real hardware beforehandudand ensure its reliability and fail-safety. Furthermore, the more complex the mechanics toudcontrol traffic lights and thus traffic flow in general become too. The existing hardware,udespecially the controllers, should be integrated into this testing pipeline to estimate the effectsudof hardware lifespan on the deployed algorithms and to proof that it can actually runudthe algorithms. This thesis provides a prototype and a design for implementing a scalableudand flexible architecture for traffic light signal systems in the DLR’s simulation frameworkudDOS, a possibility to import traffic light programs created with the simulation frameworkudSUMO and examining how hardware testing could be a future feature of DLR’s test environment.udFurthermore it’s discussing how the presented architecture is not only livingudup to the promise of scalability and flexibility, but also how control schemes with publicudtransportation consideration can be straight forward deployed on it. Lastly, it presents audpreparation for a future feature of the simulation environment, the live-stream of traffcudlight data from the city of Braunschweig to its virtual counterpart.