Abstract. We present a game-theoretic model for the line planning problem in public transportation, in which each line acts as player and aims to minimize a cost function which is related to the traffic along its edges. We analyze the model and in particular show that a potential function exists. Based on this result, we present a method for calculating equilibria and present first numerical re...

Rescheduling disrupted railway traffic is computationally hard even for small problem instances. Disruptions may not be known beforehand and can manifest themselves even when trains are en-route, and they are usually resolved by human experts. Wide geographical distribution, a dynamically changing environment, complex interdependencies between multiple components, operational criticality and un...

The Photonic Railway is proposed to overcome the limit of the current propulsion technology based on conventional rocketry for interstellar flight and to potentially open a new space era. The photonic railway, which is a permanent energy-efficient transportation structure based on the Beamed-Laser Propulsion (BLP) by Forward and the Photonic Laser Thruster (PLT) by the author, is proposed to en...

Timetables of mass transportation systems contain an information not only about the traffic flows in the network, but also about the topology of the physical infrastructure of the network. However, this data is not given explicitly; it requires an nontrivial preprocessing to be revealed. We propose an algorithm that extracts the physical structure and the network of traffic flows from timetable...

In this paper the questions of defining the optimum allocation of centers in fuzzy transportation networks are observed by the minimax criterion. It is supposed that the information received from the geographical information system is presented as a fuzzy graph. In this case the task of defining optimum allocation of the centers transforms into the task of defining the fuzzy set of graph bases....

This paper intends to present a summary of the technical issues arising in the exploitation of the 60 GHz mm-wave band for mobile and personal communications. The most significant applications proposed so far are surveyed, with particular emphasis placed on recent experimentation about millimeter-wave propagation for road/railway transportation as well as indoor scenarios. As a case study, the ...

We present a game-theoretic model for the line planning problem in public transportation, in which each line acts as player and aims to minimize a cost function which is related to the traffic along its edges. We analyze the model and in particular show that a potential function exists. Based on this result, we present a method for calculating equilibria and present first numerical results usin...

In this paper, we present the application of a set of software engineering roles. Role definitions were developed using internationally recognized software engineering reference documents for a major railway development organization: Bombardier Transportation. The description of the Software Architect role is explained. This paper will also illustrate how the role set could be used for project-...

The Qinghai-Tibet Railway is a key project during China's Tenth Five-Year Plan period. It will be the longest and most elevated railroad built on highlands in the world. The construction and transport conditions are so complicated, such as permafrost, bitter coldness, lack of oxygen and ecological fragility. Therefore advanced technical measures and methods have been used during the constructio...

Transportation has historically had a major influence on cities their locations, growth and form. Civil engineers were the leading public servants in construction of railway and transit systems. With diversification of transportation and, particularly, growth of highways, the solutions to urban transportation have become extremely complex. Instead of only building new facilities, it is now nece...