The paper is devoted to analysis of data related to traffic accidents at one of the roads in Czech Republic. The data sets are available as discrete-valued variables providing results of traffic accident (with death or not) as well as conditions under which the accident has happened (weather, visibility, speed etc). Situation of a traffic accident is modeled within state-space framework. Estima...

• Each table in the database has one column and stores the possible values for a ground fluent term. •Whenever there is complete knowledge about the term, the corresponding table has exactly one row. E.g., the ground fluent term door has only one possible value (Closed ) and so the table for door has exactly one row: Closed. •Whenever there is incomplete knowledge, the table has more than one r...

paper, we attempt to reconstruct the sitcalculus on a dense flow of time. The

In this article, a new traffic sensing and monitoring technique is introduced which works based on the emitted RF noise from the vehicles. In comparison with the current traffic sensing systems, our light-weight technique has simpler structure in both terms of hardware and software. An antenna installed to the roadside or the inside of a car receives the signal generated during electrical activ...

Background Road traffic accidents and their related deaths have become a major concern, particularly in developing countries. Iran has adopted a series of policies and interventions to control the high number of accidents occurring over the past few years. In this study we used a time series model to understand the trend of accidents, and ascertain the viability of applying ARIMA models on data...

To deliver a reliable communication service over the Internet it is essential for the network operator to manage the traffic situation in the network. The traffic situation is controlled by the routing function which determines what path traffic follows from source to destination. Current practices for setting routing parameters in IP networks are designed to be simple to manage. This can lead ...

Analyses of eye tracking and think-aloud protocol data were performed to examine novice-expert differences in perceptual and cognitive aspects of air traffic controllers’ situation awareness. In Experiment 1, participants were asked to perceive situations that were manipulated by situation complexity. In Experiment 2, protocol analysis was performed to extract different task models and strategy...

Collision avoidance is one of the high‐level safety objectives and requires a complete and reliable description of maritime traffic situation. A combined use of data provided by independent data sources is an approach to improve the accuracy and integrity of traffic situation related information. In this paper we study the usage of radar images for automatic identification system (AIS) ...

In this paper, a novel and simple search algorithm called distributed weighted fair queuing (DWFQ) algorithm is proposed for the quality-of-service (QoS) in IEEE 802.11e wireless local area networks (WLANs). We first propose that the IEEE 802.11e enhanced distributed coordination function (EDCF) is an efficient algorithm to support the QoS in WLANs, although it can provide more bandwidth to pac...

Implicit communication and higher levels of automation will be more important in the future multiple remote towers, in order to make the work of the Air Traffic Controller (ATCO) more efficient. However, the ATCO still needs to be in the control loop to make critical decisions. Human-automation collaboration requires teamwork, based on common ground and implicit communication. To design automat...