With the proliferation of wireless communication technologies, inter-vehicle communication (IVC) could potentially be applied to solve ever-worsening transportation problems around the world. In this paper, we study impacts of network vehicular traffic on IVC, apply IVC to route-guidance, and report preliminary field tests. These studies are intended to demonstrate the feasibility of IVC-based ...

We report a case of anterior mediastinal abscess treated by percutaneous drainage under computed tomography (CT) guidance. The relationships of the abscess to the adjacent organs were clearly delineated by an intravenous injection of contrast material, and the drain was inserted between the sternum and the vasa thoracica interna. Selection of this route and the choice of a large-bore catheter (...

The effectiveness of Variable Messages Signs (VMS) on route guidance is assessed by a discrete probit choice model that estimates the proportion of vehicles that diverts to an alternative routes given the characteristics of different messages. A before–and–after study is also conducted to quantitatively evaluate the network wide reduction of travel time and total delay of VMS systems. We find t...

For the purpose of traffic telematics (route guidance, fleet management etc.) one needs terminals on the vehicle for the quasi-simulteanuos reception of cellular phone (GSM) and satellite navigation (GPS). A conventional approach uses two complete receivers for this two tasks. We describe a cost-saving solution for a combined receiver which relies on the TDM structure of the GSM signal. Our sol...

Traffic congestion in urban road and freeway networks leads to a strong degradation of the network infrastructure and accordingly reduced throughput which can be countered via suitable control measures and strategies. A concise overview of proposed and implemented control strategies is provided for three areas: urban road networks, freeway networks and route guidance. The paper concludes with a...

This thesis develops a methodology for solving the bus network design problem (BNDP) in which one seeks to determine the best configuration of bus routes and their frequencies, given information on the bus transit demand, the street network, the available resources and the operational constraints. The proposed methodology follows a heuristic approach and consists of two main components route ge...

In this paper we propose a model of visually guided route navigation in ants that captures the known properties of real behaviour whilst retaining mechanistic simplicity and thus biological plausibility. For an ant, the coupling of movement and viewing direction means that a familiar view specifies a familiar direction of movement. Since the views experienced along a habitual route will be more...

SOAR is a cognitive architecture named from state, operator and result, which is adopted to portray the drivers’ guidance compliance behavior on variable message sign VMS in this paper. VMS represents traffic conditions to drivers by three colors: red, yellow, and green. Based on the multiagent platform, SOAR is introduced to design the agent with the detailed description of the working memory,...

This manuscript addresses guidance in the use of kinetic and dynamic data to inform quantitatively extrapolations for interspecies differences and human variability in dose–response assessment developed in a project of the International Programme on Chemical Safety (IPCS) initiative on Harmonisation of Approaches to the Assessment of Risk from Exposure to Chemicals. The guidance has been develo...

Urban Traffic Networks are characterized by their high dynamics and increased traffic congestion cases, leading to a more complex road management. The present research work suggests an innovative advanced vehicle guidance system based on Hierarchical Interval Type-2 Fuzzy Logic model optimized the Particle Swarm Optimization (PSO) method. Indeed, this allows intelligent prompt adjustment of net...