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With the announcement of the “Stadtpilot”- Project the Technische Universität Braunschweig has accepted the challenge of guiding a vehicle fully autonomously in the complex environment of Braunschweig's entire ring road. Autonomous driving on this two-lane urban road includes interaction with traffic, behavior at intersections, lane change maneuvers at speeds up to 60 km/h as well as merging into...
Public traffic trip is a sustainable planning to solve the facing problem of global urban transport. But, the characteristics of public traffic with low capacity, few traffic volume, slowly rate, poorly real-time and bad flexibility in China become the major obstacles. Therefore, public traffic strategy becomes a common view but not easy to extend. So the paper is trying to use the principles of Traffic...
This study combines the ASP and Access technologies to establish a logistics transportation planning system, its main functions include: new companies, company inquiries, and new orders, inquiries about vehicle dispatching, stock inquiries, inquiries of distribution, and inquiries of the best route of the product transportation. With the assistance of this system, we hope the diagrammatic interface...
With the development of integration of urban and rural public transit, urban bus transportation is playing an increasing role in urban economy. To plan the public transit network at the preliminary stage is of great significance to stimulate urban regional economy and improve the urbanization level. In this article, how to use TransCAD to collect and establish urban public transit network data is...
Since transportation is such an essential component of present-day society, capable of producing significant benefits, yet giving rise to many negative externalities, appropriate policies need to be devised to maximize the benefits and minimize the inconveniences. At the same time the allocation, design and construction of such transport infrastructure and services must be subject to careful planning,...
The decomposition of the transportation task in sub-tasks and the estimation of the accessibility level of Public Transport (PT) means, forms an important input to various services that can be offered on-line, such as route guidance, personalized multimodal-trip planning and in general personalisation of infomobility services for travelers. The questions that need to be considered in such systems...
In this paper, our objective is to minimize passengers waiting times at the bus stops by making buses wait at a stop. We compare a simple rule based approach to a Monte-Carlo method to reach this objective. When allocated enough time, the Monte-Carlo method gives better results. If the passengers arrivals and the bus travel times are known, the best algorithm is nested Monte-Carlo search with memorization...
Vehicle arrival rate is the key parameter for signal planning at intersections, which are determined by upstream intersection signal planning and platoon dispersion characteristic. With consideration of randomness and uncertainty of traffic flow arriving at intersections and the requiring for coordinated signal control between adjacent intersections, this paper presents a new method for predicting...
Based on the development of Chinese Intelligent Integrate Transportation System, the paper show the method to Recognize the Regional and Urban Transportation State, which is the most important problem in Intelligent Integrate Transportation System, besides the problem face the planning and Decision-Making process. Then this paper introduces some good examples to do this work and give a major structure...
Traffic congestion has become a major problem in many countries. One of the main causes is the failure to manage a journey. Vehicles tend to choose the shortest paths which ended up congesting a certain area. If a journey is well managed, using alternative paths may lead to the same destination in a shorter period of time. Therefore, with the importance of sustainable environment, intelligent route...
In this paper an area signal control model based on temporal planning is presented. Every activity of area signal control is modeled using planning domain definition language, and then the domain model of area signal control is established. Aiming at the representation problem of resource and time in the area signal control model, we extended the basic activity model by adding resource constraint...
Aim of this paper is to present a decision support system designed to optimize the transport of hazardous materials. Various parameters have to be in-depth analyzed for handling this kind of transport. Traditional systems, based on multi-objective functions optimization, have serious limits regarding the scalability both of the considered parameters and the number of vehicles involved into transport...
This paper presented the development of an expert system (ES) and its integration with GIS and mathematical models to advance a method to identify the significant atmospheric environmental impact caused by road traffic. Based on the literature reviews and consultations with experts, the paper addressed two major impact factors-photochemical smog and visibility for which ES knowledge base and reasoning...
In this paper a method for the prediction of vehicle velocities is described that can be used for any point of time in the future. The approach is based on a two step clustering which uses toll transaction data of the training of the model. The results are different clusters for each road segment, containing the velocity value and its probability of occurrences. Furthermore the results of the method...
According to the real situation that the traffic safety factors hadn't been considered during the process of urban traffic planning in China, the paper starts with analyzing the routine working procedure of urban traffic planning, then finds out the cut-in points of traffic safety factors incorporated into the traffic planning. Based on the above analysis some problems which are possibly met during...
The joined travelling of vehicles is an important instrument of cost reduction in the innovative RailCab concept. While the problem of joining groups of vehicles into convoys and determining convoy routes can be easily understood as optimization problem, the distributed nature and large number of vehicles and stops inhibits the direct application of operations research methods and problems. In this...
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