Download or read book Simulating Urban Traffic Scenarios written by Michael Behrisch and published by Springer. This book was released on 2018-07-13 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume contains the conference proceedings of the Simulation of Urban Mobility (SUMO) conference 2015, Berlin. The included papers cover a wide range of topics in traffic planning and simulation, including intermodal simulation, intermodal transport, vehicular communication, modeling urban mobility, open data as well as autonomous driving. The target audience primarily comprises researchers and experts in the field of mobility research, but the book may also be beneficial for graduate students.

Download or read book Planning and Simulation for Autonomous Vehicles in Urban Traffic Scenarios written by Xinchen Li (Ph. D. in electrical engineering) and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic accidents result in a high number of fatalities each year. This brings up the importance of developing Autonomous Vehicles (AV) and Advanced Driver Assistance Systems (ADAS), due to their potential of increasing traffic safety by reducing vehicle crashes caused by driver errors. It could also be helpful to deploy the intelligent transportation systems (ITS) in different traffic scenarios to increase the efficiency of traffic flow and enlarge the traffic capacity. Planning and control of the autonomous vehicles, the two essential modules in autonomous driving, are still facing severe challenges in adapting to various traffic scenarios and complex environments. The planning and decision making of vehicles in urban traffic environment are still a big challenge for autonomous vehicles due to its complexity and uncertainties. Hence it is necessary to develop decision making and planning algorithms for vehicles in urban traffic, especially in intersections. Also, velocity profile planning for autonomous vehicles is also required based on various requirements according to the environment. Additionally, a convenient method for testing and validating the developed algorithms is also required. Hence a good simulation environment is important in the field of autonomous vehicles. This dissertation contributes to planning and decision making of autonomous vehicles in urban traffic scenarios as well as developing a way of generating realistic simulation environments as test beds to validate developed autonomous driving algorithms. Decision making methods and planning methods for autonomous shuttles and autonomous vehicles in urban traffic are proposed. A rule based decision maker working for last mile problem is introduced for an autonomous shuttle so that the autonomous shuttle can deal with typical traffic on designated routes. Then to deal with complex and uncertain urban traffic scenarios when the ego autonomous vehicles doesn’t have full observability over other vehicles’ states, a Partially Observable Markov Decision Making Process (POMDP) based decision making algorithm is proposed for solving the roundabout intersection planning problem with multiple vehicles involved. Moreover, a velocity planning method for autonomous shuttle in geo-fenced area is developed, such that passengers in the autonomous shuttle are safe and comfortable. In order to improve the performance of decision making algorithms, vehicle behavior and trajectory prediction methods are also studied. Sensor perception is an important part of the autonomous driving as the ego autonomous vehicle is detecting the environment and surrounding vehicles all the time. Noise is inevitable during the perception and some internal states of other vehicles are not detected. Hence, a Kalman filter based vehicle trajectory tracking is introduced to take care the measurement noise in the perception as well as to estimate the vehicle internal states. A change point detection based policy prediction method is also introduced for determining the most likely vehicle behavior given a series of observation data along the vehicle trajectory. Combining both methods, a vehicle trajectory prediction over a future period of time is also proposed. In addition, a method for developing simulation environment using real map data and 3D rendering based on a game engine is presented as a powerful tool for developing simulations for intelligent transportation systems. All the proposed methods are provided with simulation and test results to demonstrate the efficiency.

Download or read book Potential Impacts of Connected Vehicles in Urban Traffic written by Tariq Rahim Rahimi and published by . This book was released on 2018 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research is an introduction to the topic of simulating vehicles capable of being connected with the infrastructure. The connectivity helps vehicles make better decisions and improves the general traffic flow. It is built around SUMO, an open source traffic simulation software developed by German Aerospace Center (DLR) of traffic studies. Three different scenarios of an urban intersection are simulated. First, an isolated intersection with current traditional traffic is simulated. Then, a camera connected with traffic light is simulated as a form of infrastructure to vehicle connectivity. The camera detects the vehicles in a specific distance from the stop line and adapts the traffic lights in order for the vehicles to pass the intersection safely. Third scenario is where vehicles are given some characteristics of autonomous and connected vehicles sporting less gap between each other, near perfect driving, and faster perception-reaction time. The main goal of our work is to be able to simulate how vehicles with some sort of connectivity impact traffic flow. We used the output from the fixed scenario as our base and compared the numbers we got from the second and third scenarios. We found out that the second scenario yields a better traffic flow with lesser delay and queue length. Moreover, the third scenario had cut more than half of the delay and queue length. In this study, we took an urban intersection and used it as an isolated one. We think if three parameters can have this much effect on traffic flow, having a fully connected and autonomous vehicle will have a larger effect on reducing collisions and congestions. My professor, colleagues and I are planning to do further studies of different intersections and roadways and evaluate its applicability.

Download or read book Modeling Mobility with Open Data written by Michael Behrisch and published by Springer. This book was released on 2015-03-11 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume contains the conference proceedings of the Simulation of Urban Mobility (SUMO) conference 2014, Berlin. The included research papers cover a wide range of topics in traffic planning and simulation, including open data, vehicular communication, e-mobility, urban mobility, multimodal traffic as well as usage approaches. The target audience primarily comprises researchers and experts in the field, but the book may also be beneficial for graduate students.

Download or read book HUTSIM Urban Traffic Simulation and Control Model Principles and Applications written by Iisakki Kosonen and published by . This book was released on 1999 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tiivistelmä. - Sammandrag.

Download or read book Fundamentals of Traffic Simulation written by Jaume Barceló and published by Springer Science & Business Media. This book was released on 2011-01-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing power of computer technologies, the evolution of software en- neering and the advent of the intelligent transport systems has prompted traf c simulation to become one of the most used approaches for traf c analysis in s- port of the design and evaluation of traf c systems. The ability of traf c simulation to emulate the time variability of traf c phenomena makes it a unique tool for capturing the complexity of traf c systems. In recent years, traf c simulation – and namely microscopic traf c simulation – has moved from the academic to the professional world. A wide variety of traf- c simulation software is currently available on the market and it is utilized by thousands of users, consultants, researchers and public agencies. Microscopic traf c simulation based on the emulation of traf c ows from the dynamics of individual vehicles is becoming one the most attractive approaches. However, traf c simulation still lacks a uni ed treatment. Dozens of papers on theory and applications are published in scienti c journals every year. A search of simulation-related papers and workshops through the proceedings of the last annual TRB meetings would support this assertion, as would a review of the minutes from speci cally dedicated meetings such as the International Symposiums on Traf c Simulation (Yokohama, 2002; Lausanne, 2006; Brisbane, 2008) or the International Workshops on Traf c Modeling and Simulation (Tucson, 2001; Barcelona, 2003; Sedona, 2005; Graz 2008). Yet, the only comprehensive treatment of the subject to be found so far is in the user’s manuals of various software products.

Download or read book Simulation of Urban Mobility written by Michael Behrisch and published by Springer. This book was released on 2014-11-06 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed proceedings of the First International Conference on Simulation of Urban Mobility, SUMO 2013, held in Berlin, Germany, in May 2013. The 12 revised full papers presented tin this book were carefully selected and reviewed from 22 submissions. The papers are organized in two topical sections: models and technical innovations and applications and surveys.

Download or read book Urban Traffic Simulator Version I II written by and published by . This book was released on 1970 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Multi Agent Transport Simulation MATSim written by Andreas Horni and published by Ubiquity Press. This book was released on 2016-08-10 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MATSim (Multi-Agent Transport Simulation) software project was started around 2006 with the goal of generating traffic and congestion patterns by following individual synthetic travelers through their daily or weekly activity programme. It has since then evolved from a collection of stand-alone C++ programs to an integrated Java-based framework which is publicly hosted, open-source available, automatically regression tested. It is currently used by about 40 groups throughout the world. This book takes stock of the current status. The first part of the book gives an introduction to the most important concepts, with the intention of enabling a potential user to set up and run basic simulations. The second part of the book describes how the basic functionality can be extended, for example by adding schedule-based public transit, electric or autonomous cars, paratransit, or within-day replanning. For each extension, the text provides pointers to the additional documentation and to the code base. It is also discussed how people with appropriate Java programming skills can write their own extensions, and plug them into the MATSim core. The project has started from the basic idea that traffic is a consequence of human behavior, and thus humans and their behavior should be the starting point of all modelling, and with the intuition that when simulations with 100 million particles are possible in computational physics, then behavior-oriented simulations with 10 million travelers should be possible in travel behavior research. The initial implementations thus combined concepts from computational physics and complex adaptive systems with concepts from travel behavior research. The third part of the book looks at theoretical concepts that are able to describe important aspects of the simulation system; for example, under certain conditions the code becomes a Monte Carlo engine sampling from a discrete choice model. Another important aspect is the interpretation of the MATSim score as utility in the microeconomic sense, opening up a connection to benefit cost analysis. Finally, the book collects use cases as they have been undertaken with MATSim. All current users of MATSim were invited to submit their work, and many followed with sometimes crisp and short and sometimes longer contributions, always with pointers to additional references. We hope that the book will become an invitation to explore, to build and to extend agent-based modeling of travel behavior from the stable and well tested core of MATSim documented here.

Download or read book Simulation and Queueing Network Model Formulation of Mixed Automated and Non automated Traffic in Urban Settings written by Nathaniel Karl Bailey and published by . This book was released on 2016 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automated driving is an emerging technology in the automotive industry which will likely lead to significant changes in transportation systems. As automated driving technology is still in early stages of implementation in vehicles, it is important yet difficult to understand the nature of these changes. Previous research indicates that autonomous vehicles offer numerous benefits to highway traffic, but their impact on traffic in urban scenarios with mixed autonomous and non-autonomous traffic is less understood. This research addresses this issue by using microscopic traffic simulation to develop understanding of how traffic dynamics change as autonomous vehicle penetration rate varies. Manually driven and autonomous vehicles are modeled in a simulation environment with different behavioral models obtained from the literature. Mixed traffic is simulated in a simple network featuring traffic flowing through an isolated signalized intersection. The green phase length, autonomous vehicle penetration rate, and demand rate are varied. We observe an increase in network capacity and a decrease in average delay as autonomous vehicle penetration rate is increased. Using the results of the simulation experiments, an existing analytical network queueing model is formulated to model mixed autonomous and non-autonomous urban traffic. Results from the analytical model are compared to those from simulation in the small network and the Lausanne city network, and they are found to be consistent.

Download or read book Testing Software and Systems written by Franz Wotawa and published by Springer. This book was released on 2016-10-10 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 278th IFIP WG 6.1 International Conference on Testing Software and Systems, ICTSS 2016, held in Graz, Austria, in October 2016. The 12 revised full papers and 6 short papers presented were carefully reviewed and selected from 41 submissions. The papers are organized in topical sections on testing methodologies, heuristics and non-determinism in testing, practical applications, and short contributions.

Download or read book A General Purpose Digital Simulator and Examples of Its Application written by A. M. Blum and published by . This book was released on 1964 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Traffic Simulation Models for Supporting ITS Development written by Sharon Adams Boxill and published by . This book was released on 2000 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tools to evaluate networks under information supply are a vital necessity in light of the systems being implemented as part of the Intelligent Transportation Systems (ITS) deployment plan. One such tool is the traffic simulation model. This report presents an evaluation of the existing traffic simulation models to identify the models that can be potentially applied in ITS equipped networks. The traffic simulation models are categorized according to type (macroscopic, microscopic or mesoscopic), as well as functionality (highway, signal, integrated). The entire evaluation is conducted through two steps: initial screening and in-depth evaluation. The initial step generates a shorter but more specific list of traffic simulation models based on some pre-determined criteria. The in-depth evaluation identifies which model on the shorter list is suitable for a specific area of ITS applications. It is concluded from this research that presently CORSIM and INTEGRATION appear to have the highest probability of success in real-world applications. It is also found that by adding more calibration and validation in the U.S., the AIMSUN 2 and PARAMICS models will be brought to the forefront in the near term for use with ITS applications.

Download or read book Simulation Approaches in Transportation Analysis written by Ryuichi Kitamura and published by Springer Science & Business Media. This book was released on 2006-03-10 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation Approaches in Transportation Analysis: Recent Advances and Challenges presents the latest developments in transport simulation, including dynamic network simulation and micro-simulation of people’s movement in an urban area. It offers a collection of the major simulation models that are now in use throughout the world; it illustrates each model in detail, examines potential problems, and points to directions for future development. The reader will be able to understand the functioning, applicability, and usefulness of advanced transport simulation models. The material in this book will be of wide use to graduate students and practitioners as well as researchers in the transportation engineering and planning fields.

Download or read book A Multi agent Approach Towards Modeling Urban Traffic Scenarios written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Urban Traffic Simulation by Uno Lundin With the Collaboration of ke Lindstr m written by Uno Larsson and published by . This book was released on with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multiagent System Technologies written by Franziska Klügl and published by Springer. This book was released on 2011-10-07 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 9th German Conference on Multiagent System Technologies held in Berlin, Germany, in October 2011. The 12 revised full papers presented together with 6 short parers were carefully reviewed and selected from 50 submissions. Providing an interdisciplinary forum for researchers, users, and developers to present and discuss latest advances in research work as well as prototyped or fielded systems of intelligent agents and multi-agent systems, the papers cover the whole range of this sector and promote its theory and applications.