An increasing need for mobility in a society with limited resources calls for efficient and energy-friendly transport systems. It is widely agreed that the environmental impact of ever increasing transport volumes can be significantly reduced by shifting the demand from private transport modes to more environmentally-friendly public transport systems. These systems can help to reduce road congestion, and contribute to reductions in air pollution, noise, or impact on nature. Aiming at an increased market share of public transport systems, it is important to design these systems such that they reflect the mobility needs of the population. In particular, in order to be able to attract car drivers into the public transport system, the service level and reliability provided by the latter must be increased significantly.