Electronic library of Educational and instructional center for railway transportation

simulation and design of electronic processing circuit for restaurants e-procurement system

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

Mathematical Solutions for Solving Periodic Railway Transportation

Train scheduling has been a significant issue in the railway industry. Over the last few years, numerous approaches and tools have been developed to compute railway scheduling. In this paper, we present a set of heuristics for a constraint-based train scheduling tool, which is a project in collaboration with the National Network of Spanish Railways RENFE , Spain. We formulate train scheduling a...

A Dispatching Tool for Railway Transportation

Almost all trains have to run according a schedule. One exception may be some freight trains which may start at a random time. Unfortunatly, for some reasons, some minor problems occur and lead to have delays. Due to limited ressources available (tracks, cars,. . . ), a small problem can lead to a chain of delays. To monitor the traffic and take decisions are the main goals of the train dispatc...

Center for Transportation Studies

A Reference Architecture for Instructional Educational Software

Our extensive research has indicated that high-school teachers are reluctant to make use of existing instructional educational software (Pollard, 2005). Even software developed in a partnership between a teacher and a software engineer is unlikely to be adopted by teachers outside the partnership (Pollard, 2005). In this paper we address these issues directly by adopting a reusable architectura...