Hans Hellendoorn

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When freeway traffic is dense, shock waves may appear. These shock waves result in longer travel times and in sudden large variations in the speeds of the vehicles, which could lead to unsafe situations. Dynamic speed limits can be used to eliminate or at least to reduce the effects of shock waves. However, coordination of the variable speed limits is(More)
This paper discusses the optimal coordination of variable speed limits and ramp metering in a freeway traffic network, where the objective of the control is to minimize the total time that vehicles spend in the network. Coordinated freeway traffic control is a new development where the control problem is to find the combination of control measures that(More)
An important subject in fuzzy control theory is tuning of a fuzzy controller. If one wants to tune a fuzzy controller, one can focus on the choice of rules, membership functions, number of input and output fuzzy sets and their degree of overlapping, implication, and connection operations, and defuzzijication method. All these choices are closely related and(More)
Will reading habit influence your life? Many say yes. Reading model based fuzzy control fuzzy gain schedulers and sliding mode fuzzy controllers is a good habit; you can develop this habit to be such interesting way. Yeah, reading habit will not only make you have any favourite activity. It will be one of guidance of your life. When reading has become a(More)
The process of handling baggage in an airport is time critical. Currently, the fastest way to transport the luggage is to use destination coded vehicles (DCVs). These vehicles transport the bags at high speed on a ldquominirdquo railway network. The typical issues of the baggage handling system are coordination and synchronization of the processing units,(More)
We consider the control of large-scale transportation networks, like road traffic networks, power distribution networks, water distribution networks, etc. Control of these networks is often not possible from a single point by a single intelligent control agent; instead control has to be performed using multiple intelligent agents. We consider multi-agent(More)
In this paper we develop advanced control methods for routing individual vehicles which ensure automatic transportation of bags in a baggage handling system of an airport. In particular we consider distributed model predictive control and a distributed heuristic control approach. The baggage handling system performs efficiently if all the bags are(More)
State-of-the-art baggage handling systems transport luggage in an automated way using destination coded vehicles (DCVs). These vehicles transport the bags at high speeds on a “mini” railway network. Currently, the networks are simple and the performance of the system is limited. In the research we conduct, more complex networks are considered. In order to(More)