in the present paper, challenges and prospects of the european railways, along with a proposal for a new strategy policy and specific measures are presented. the declining course of european railways concerning traffic and revenues is first analyzed. conditions to introduce intra - modal competition are surveyed, among them separation of infrastructure from operation as it has been applied in a...

In this paper an imaging system for road traffic conflict analysis is proposed. The system exploits geo-referenced stereo sequences and tracking procedure to compute traffic conflict measures which can be analysed by experts. Using the potentiality of the traffic conflict technique as a surrogate safety measure could constitute an effective tool in understanding how the driver interacts and ada...

Traffic shaping at the edge router is one possible solution to mitigate the adverse effects of self-similar traffic in optical packet-switched networks. In this paper we propose an optical packet assembly mechanism and study its impacts on the traffic characteristics. In addition to the Hurst parameter, we apply new measures to describe the short-term correlation and to investigate the effect o...