197 research outputs found

    Modelling Bluetooth Inquiry for SUMO

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    SUMO provides an interface for the implementation of arbitrary additional vehicle devices. This paper describes how this interface was used to implement Bluetooth devices with a special focus on the inquiry process and how its modelling relates to real world measurements and a simple analytic model

    SUMO User Conference 2019

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    SUMO2019:Editor's Preface This volume contains the papers presented at the SUMO Conference 2019 Simulating Connected Urban Mobility. The conference was held in Berlin from 13-15 May 2019. The goal of the conference was to present new results in the field of mobility simulation and modelling using traffic tools and data which are open available.There were 32 submissions. Each submission was reviewed by at least 2 program committee members. The committee decided to accept 22 papers. Traffic simulations have a high value for traffic research studies. New traffic strategies can be tested and evaluated in advance with little costs. For realistic simulation results a complex traffic simulation framework is needed. One microscopic traffic simulation for this purpose is the open source tool Eclipse SUMO (Simulation of open mobility) which is available since 2001. SUMO provides a wide range of transport planning and modelling applications. The major topic of the 7th SUMO conference is the simulation of connected vehicles. This volume contains articles about simulator coupling, connected and automated Vehicles. Furthermore, the journal includes also papers about new algorithms for traffic light systems and new applications for the simulation of other traffic modes or reinforcement learning strategies. We would like to thank EasyChair for the conference support and its helpfull conference management tool. Laura Bieker-Walz Melanie Weber Robert Hilbrich Michael Behrisch July 24, 2019 Berli

    Co-simulation of vehicles and crowds for rescue trials

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    In this paper, the focus is put on the integration of XVR, SE-Star and SUMO simulators via the Driver+ test-bed, where XVR provides different learning environments for all levels of incident command, SE-Star handles crowd simulation and SUMO focuses on vehicular simulation and routing. With the test-bed and the provided services these simulation tools can synchronically exchange information with each other, creating a common simulation space that offers more possibilities for CM-training, trials and tests. A simulation scenario around the train station in Rotterdam, the Netherlands, is established for demonstration of the connected systems

    Simulated-based Validity Analysis of Ecological User Equilibrium

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    Microscopic traffic simulation models are applied in the analysis of transportation systems for years. Nevertheless, calibration (and validation) of microscopic sub-models such as car-following and gap-acceptance models is still a recent matter. The objective of the calibration is to adapt the simulation output to empirical data by adjusting the model's parameters. However, simulation results may vary from the underlying real-world data, despite the calibration. To analyze these deviations the present paper compares two different approaches of calibration using data from a single-lane car-following experiment on a Japanese test track. It is demonstrated that the results of the two methods differ significantly. A recommendation for the more appropriate method to use is given

    Comparing and Parameterizing the Electrical Energy Consumption Models in SUMO

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    This paper examined the performances of the current four battery models in SUMO. The possibility of expanding the model parameterization was also investigated and the corresponding extension was carried out for PHEMlight. Accordingly, the models can be compared more fairly. Three scenarios were used, namely the Worldwide harmonized Light vehicles Test Cycle, a constant high-speed highway scenario and an area scenario with a relatively complex traffic situation. The results show that all models can address recuperation and propulsion, and deliver the similar result at very low acceleration. The models based on average vehicle data generally tend to deliver higher battery consumption than the models with individual vehicle type-specific parameterization, especially PHEMlight5, while HBEFA4 only has one electric vehicle class and is therefore not sensitive to various vehicle characteristics. Moreover, the model by Kurczveil and López (EVM) seems to tend to have the lowest consumption of all models

    EmerT – a web based decision support tool for Traffic Management

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    This paper describes the EmerT portal (Emergency mobility of rescue forces and regular Traffic), an extended version of the DELPHI web tool. EmerT is a web decision support application for real time traffic situation, prognosis and traffic simulation. One of the main features in this system is to provide traffic state estimation and forecasts with use of the mesoscopic traffic simulation. Traffic bottlenecks can be identified by the simulation which helps the decision maker to take appropriate traffic management actions. Another feature is the information exchange and cooperation between the Traffic Management Center, Emergency Rescue Services, Police and Emergency Call Center. This application supports three demonstration regions in Germany, Cologne, Bonn and Munich, and will be extended for the whole region of Germany. The main purpose is to handle major incidents and large events which affect changes in the traffic demand and current traffic situation. The EmerT system supports users to get a quick overview of the current traffic situation. This paper aims to present the current development state of the EmerT portal with focus on the backend including traffic simulation, data acquisition and aerial imaging

    SUMO 2018: Simulating Autonomous and Intermodal Transport Systems

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    This journal contains the proceedings of the SUMO Conference 2018 – Simulating Autonomous and Intermodal Transport Systems. The conference was held form 14. until 16.May 2018 in Berlin. The aim of the conference is to present new and unique results in the field of mobility simulation and modelling using openly available tools and data. Traffic simulations are of immense importance for researchers as well as practitioners in the field of transportation. SUMO has been available since 2001 and provides a wide range of traffic planning and simulation applications. SUMO consists of a suite of tools covering road network imports and enrichment, demand generation and assignment and a state-of-the-art microscopic traffic simulation capable to simulate private and public transport modes, as well as person-based trip chains. Being open source, SUMO is ready to implement new behavioral models or to control the simulation remotely using various programming environments. These and other features make SUMO one of the most often used open source traffic simulations with a large and international user community. The major topic of the 6th SUMO conference is the simulation of autonomous and intermodal transport. This journal includes articles about RoboShuttles, Robo-Taxis and the influence of autonomous driving functions. Furthermore, the coupling of other simulations, the modelling of different traffic modes and the validation of transport systems are also addressed in the proceedings to name only a few topics

    DELPHI - a joint web decision support application for real time traffic situation analysis and prognosis, information exchange and cooperation

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    This paper describes DELPHI, a pilot version of a joint web decision support application for real time traffic situation and prognosis, information exchange and cooperation between the Traffic Management Center, Emergency Rescue Services, the Police and the Emergency Call Center. In two demonstration regions in Germany, Cologne and Munich the R&D project started in 2007. The main purpose is to handle major incidents that affect the transportation situation in conurbation areas. The web application is intended to help task force members at different stakeholders to obtain a common and joint overview. DELPHI also allows to coordinate tactical measures among the task forces

    SUMO’s Lane-changing model

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    SUMO is an open source microscopic traffic simulation. A major component of modelling microscopic vehicle behavior is the lane-changing behavior on multi-lane roads. We describe a new model which uses a 4-layered hierarchy of motivations to determine the vehicle behavior during every simulation step and motivate in which ways it improves the current lane-changing model
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