Rapid urban growth is resulting into increase in travel demand and private vehicle ownership in urban areas. In the present scenario the existing infrastructure has failed to match the demand that leads to traffic congestion, vehicular pollution and accidents. With traffic congestion augmentation on the road, delay of commuters has increased and reliability of road network has decreased. Four s...

due to increasing growth of air traffic, it is very important to have a reliable air traffic control system. usually secondary surveillance radar systems are employed for this task. in this paper, a new approach is presented to identify interrogators location of this system. the proposed method works passively and uses just a single receiver. this goal has been reached using angle and time diff...

Abstract Air Traffic Control System (ATCS) is a large-scale information system that spreads all over the world and widely used (Zhang et al., Modern Management (in Chinese). Beijing University of Aeronautics Astronautics Press, Beijing, 2005). Although it cannot represent entire system, its structure, functional composition application methods can already reflect many basic characteristics toda...

Most Traffic Information Systems (TIS), e.g. route finders or electronic schedules for air planes, trains, buses or trams provide an isolated view on only a single means of transport. These information systems are unable to deliver routes which combine multiple means of transport or means of transport from multiple operators. Users on the other hand demand information systems which deliver rout...

With real time traffic information, drivers on our highways can adapt and take action when encountering congestion. They can reschedule appointments or choose an alternate route. Existing systems that provide real time traffic information rely on infrastructure and human resources. These techniques are inaccurate, slow and require expensive infrastructure that provide limited coverage. We propo...