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This paper proposes a discrete event model for controlling railway traffic in order to minimize transport time and, implicitly for optimizing fuel/energy consumption. We built a modular approach for solving the traffic coordination issue, respectively we built three Petri net models for modeling and simulating, respectively the transport planning process; the control of transport itinerary; and the...
Supervision and control of Autonomous underwater vehicles (AUVs) has traditionally been focused on an operator determining a priori the sequence of waypoints of a single vehicle for a mission. As AUVs become more ubiquitous as a scientific tool, we envision the need for controlling multiple vehicles which would impose less cognitive burden on the operator with a more abstract form of human-in-the-loop...
A real-time vehicle motion planning engine is presented in this paper, with the focus on exploiting the prior and online traffic knowledge, e.g., predefined roadmap, prior environment information, behaviour-based motion primitives, within the space exploration guided heuristic search (SEHS) framework. The SEHS algorithm plans a kinodynamic vehicle motion in two steps: a geometric investigation of...
Cooperative information systems are multi-agent systems with organizational platform and database layer conforming to open environment consisting of a different kinds of information sources. Mobility of actors introduces new challenges to workflow systems development. Context-aware voice user interfaces are one of promising approaches to optimize business processes and to reduce costs in business...
Historically the EV market has focused on providing services such as charging infrastructure based on master planning in the hope that end users will want to use the provided assets. This model has been shown to fail in certain instances with stranded assets and non-viable business models. This paper demonstrates how Route Monkey is working with partners to create demand within fleets for the deployment...
Currently, there are many models available which can be used to describe a driver's behaviour for a traffic simulation. Despite the number of available formalisms it is our opinion that existing approaches neglect the interplay between the simulation topology and strategic decisions of simulated drivers. Existing models either disregard strategy updates or focus on short-term strategies only. In this...
In the modeling and simulation of driving behavior, the driving manipulation converts the decision to the specific actions and outputs to the physical model of vehicle so that the manipulation is the important content of driving research. Divided the driving manipulation modeling into resources matching and task planning. It matches the operating resources by comparing the resource matrix. Introduced...
As the Autonomous Underwater Vehicle (AUV) and Autonomous Surface Vehicle (ASV) platforms mature in endurance and reliability, a natural evolution will occur towards longer, more remote autonomous missions. This evolution will require the development of key capabilities that allow these robotic systems to perform a high level of on-board decision-making, which would otherwise be performed by human...
Designing and planning of supply chain network (SCN) is one of the most important decisions to be made in dynamic business environment. Under today's dynamic circumstances, SCN is too complex to allow realistic models to be evaluated analytically. For this reason, we have developed a new simulator. This simulator provides most of the features needed to build a simulation model and can be accessed...
This paper, from a theoretical perspective, to study Fire Station Distribution and Responsible Area Zoning, found that optimizing standard was fire protection response time. Using this standard, the author constructed an Optimizing Mathematic model to convert response time problem to vehicular speed of Fire Engine. Based on principles of Transportation Accessibility and Road System Reliability, this...
Vehicle fuel consumption and emissions are directly related to the acceleration/deceleration patterns and the idling period. In order to reduce emissions and improve fuel economy, sharp acceleration/deceleration and idling should be avoided as much as possible. Unlike on freeways, traffic on signalized corridors suffers from increased fuel consumption and emissions due to idling and acceleration/deceleration...
Currently in Colombia, it's been developed a massive public transportation systems in several major cities based on bus-type vehicles that use fuel and gas engines. This fact is not currently considering the electrical traction as it is made at the "Metro de Medellin" - the unique metro railway in Colombia- that uses an electrical distribution system along the railway with the advantage...
In this paper we introduce a visualization application for a vehicle simulation with an automatic pilot. The application is written in OpenGL and includes a model of a vehicle (a motorcycle) based on the physical laws of motion, including kinematics, gravitation, and friction. The vehicle can be controlled by the user through keyboard and mouse commands, as well as by an automatic pilot. The latter...
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