<title/> When considering innovative forms of public transport for specific groups, such as demand responsive services, the challenge is to find a good balance between operational efficiency and 'user friendliness' of the scheduling algorithm even when specialized skills are not available. Regret...

<title>A<sc>bstract</sc> </title> Public transport systems are confronted by the need to improve their economic effectiveness in order to meet customer requirements at acceptable costs for transit providers, which are often heavily subsidized. Our goal is to understand how the organizational form of the transit system...

Travel research is increasingly exploring the role of qualitative elements in mobility behaviors, beyond customarily considered factors such as the socioeconomic status of travelers or the characteristic and performances of transport systems. More recent travel surveys are thus increasingly...

A growing body of research is casting light on the intrinsic utility of the traveling activity, something that seems not identifiable with the utility of performing activities at different locations. As a complement to previous speculative and empirical researches on this topic, the present...

In this paper we present a parallel regret insertion heuristic to solve a dial-a-ride problem with time windows. A new route initialization procedure is implemented, that keeps into account both the spatial and the temporal aspects of the problem, and a regret insertion is then performed to...

We study the problem of determining the number of vehicles needed to provide a demand responsive transit service with a predetermined quality for the user in terms of waiting time at the stops and maximum allowed detour. We propose a probabilistic model that requires only the knowledge of the...