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A simulation framework for cooperative intelligent transport systems testing and evaluation
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES). The Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).
The Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden.
The Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden.
2019 (English)In: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, E-ISSN 1873-5517, Vol. 61, p. 268-280Article in journal (Refereed) Published
Abstract [en]

Connected and automated driving in the context of cooperative intelligent transport systems (C-ITS) is an emerging area in transport systems research. Interaction and cooperation between actors in transport systems are now enabled by the connectivity by means of vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communication. To ensure the goals of C-ITS, which are safer and more efficient transport systems, testing and evaluation are required before deployment of C-ITS applications. Therefore, this paper presents a simulation framework—consisting of driving-, traffic-, and network-simulators—for testing and evaluation of C-ITS applications. Examples of cooperative adaptive cruise control (CACC) applications are presented, and are used as test cases for the simulation framework as well as to elaborate on potential use cases of it. Challenges from combining the simulators into one framework, and limitations are reported and discussed. Finally, the paper concludes with future development directions, and applications of the simulation framework in testing and evaluation of C-ITS. © 2017 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Kidlington: Pergamon Press, 2019. Vol. 61, p. 268-280
Keywords [en]
C-ITS, driving simulator, traffic simulator, network simulator, platooning
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hh:diva-34870DOI: 10.1016/j.trf.2017.08.004Scopus ID: 2-s2.0-85028624553OAI: oai:DiVA.org:hh-34870DiVA, id: diva2:1138227
Projects
Vehicle ICT Innovation Methodology (VICTIg)
Funder
Knowledge Foundation
Note

This work is supported by SAFER – Vehicle and Traffic Safety Centre at Chalmers, as a part of Vehicle ICT Innovation Methodology (VICTIg) project.

Available from: 2017-09-04 Created: 2017-09-04 Last updated: 2019-04-03Bibliographically approved
In thesis
1. A Simulation-Based Safety Analysis of CACC-Enabled Highway Platooning
Open this publication in new window or tab >>A Simulation-Based Safety Analysis of CACC-Enabled Highway Platooning
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Cooperative Intelligent Transport Systems (C-ITS) enable actors in the transport systems to interact and collaborate by exchanging information via wireless communication networks. There are several challenges to overcome before they can be implemented and deployed on public roads. Among the most important challenges are testing and evaluation in order to ensure the safety of C-ITS applications.

This thesis focuses on testing and evaluation of C-ITS applications with regard to their safety using simulation. The main focus is on one C-ITS application, namely platooning, that is enabled by the Cooperative Adaptive Cruise Control (CACC) function. Therefore, this thesis considers two main topics: i) what should be modelled and simulated for testing and evaluation of C-ITS applications? and ii) how should CACC functions be evaluated in order to ensure safety?

When C-ITS applications are deployed, we can expect traffic situations which consist of vehicles with different capabilities, in terms of automation and connectivity. We propose that involving human drivers in testing and evaluation is important in such mixed traffic situations. Considering important aspects of C-ITS including human drivers, we propose a simulation framework, which combines driving-, network-, and traffic simulators. The simulation framework has been validated by demonstrating several use cases in the scope of platooning. In particular, it is used to demonstrate and analyse the safety of platooning applications in cut-in situations, where a vehicle driven by a human driver cuts in between vehicles in platoon. To assess the situations, time-to-collision (TTC) and its extensions are used as safety indicators in the analyses.

The simulation framework permits future C-ITS research in other fields such as human factors by involving human drivers in a C-ITS context. Results from the safety analyses show that cut-in situations are not always hazardous, and two factors that are the most highly correlated to the collisions are relative speed and distance between vehicles at the moment of cutting in. Moreover, we suggest that to solely rely on CACC functions is not sufficient to handle cut-in situations. Therefore, guidelines and standards are required to address these situations properly.

Place, publisher, year, edition, pages
Halmstad: Halmstad University Press, 2018. p. 103
Series
Halmstad University Dissertations ; 51
Keywords
simulation, driving simulator, traffic simulator, network simulator, C-ITS, cooperative intelligent transport systems, platooning
National Category
Computer Sciences Transport Systems and Logistics Other Electrical Engineering, Electronic Engineering, Information Engineering Engineering and Technology
Identifiers
urn:nbn:se:hh:diva-38390 (URN)978-91-88749-07-9 (ISBN)978-91-88749-08-6 (ISBN)
Public defence
2018-12-12, Wigforssalen, Hus J (Visionen), Halmstad University, Kristian IV:s väg 3, Halmstad, 10:15 (English)
Opponent
Supervisors
Available from: 2018-11-26 Created: 2018-11-20 Last updated: 2019-04-25Bibliographically approved

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Aramrattana, MaytheewatLarsson, Tony

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