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Dimensions of Cooperative Driving, ITS and Automation
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.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), CAISR - Center for Applied Intelligent Systems Research. Viktoria Swedish ICT, Gothenburg, Sweden.ORCID iD: 0000-0002-1043-8773
2015 (English)In: 2015 IEEE Intelligent Vehicles Symposium (IV), Piscataway, NJ: IEEE Press, 2015, p. 144-149Conference paper, Published paper (Refereed)
Abstract [en]

Wireless technology supporting vehicle-to-vehicle (V2V), and vehicle-to-infrastructure (V2I) communication, allow vehicles and infrastructures to exchange information, and cooperate. Cooperation among the actors in an intelligent transport system (ITS) can introduce several benefits, for instance, increase safety, comfort, efficiency. Automation has also evolved in vehicle control and active safety functions. Combining cooperation and automation would enable more advanced functions such as automated highway merge and negotiating right-of-way in a cooperative intersection. However, the combination have influences on the structure of the overall transport systems as well as on its behaviour. In order to provide a common understanding of such systems, this paper presents an analysis of cooperative ITS (C-ITS) with regard to dimensions of cooperation. It also presents possible influence on driving behaviour and challenges in deployment and automation of C-ITS.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Press, 2015. p. 144-149
National Category
Embedded Systems
Identifiers
URN: urn:nbn:se:hh:diva-29191DOI: 10.1109/IVS.2015.7225677ISI: 000380565800025Scopus ID: 2-s2.0-84951010000ISBN: 978-1-4673-7266-4 OAI: oai:DiVA.org:hh-29191DiVA, id: diva2:846110
Conference
2015 IEEE Intelligent Vehicles Symposium, Seoul, South Korea, June 28 - July 1, 2015
Funder
Knowledge FoundationVINNOVAAvailable from: 2015-08-14 Created: 2015-08-14 Last updated: 2018-11-20Bibliographically approved
In thesis
1. Modelling and Simulation for Evaluation of Cooperative Intelligent Transport System Functions
Open this publication in new window or tab >>Modelling and Simulation for Evaluation of Cooperative Intelligent Transport System Functions
2016 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Future vehicles are expected to be equipped with wireless communication tech- nology, that enables them to be “connected” to each others and road infras- tructures. Complementing current autonomous vehicles and automated driving systems, the wireless communication allows the vehicles to interact, cooperate, and be aware of its surroundings beyond their own sensors’ range. Such sys- tems are often referred to as Cooperative Intelligent Transport Systems (C-ITS), which aims to provide extra safety, efficiency, and sustainability to transporta- tion systems. Several C-ITS applications are under development and will require thorough testing and evaluation before their deployment in the real-world. C- ITS depend on several sub-systems, which increase their complexity, and makes them difficult to evaluate.

Simulations are often used to evaluate many different automotive appli- cations, including C-ITS. Although they have been used extensively, simulation tools dedicated to determine all aspects of C-ITS are rare, especially human fac- tors aspects, which are often ignored. The majority of the simulation tools for C-ITS rely heavily on different combinations of network and traffic simulators. The human factors issues have been covered in only a few C-ITS simulation tools, that involve a driving simulator. Therefore, in this thesis, a C-ITS simu- lation framework that combines driving, network, and traffic simulators is pre- sented. The simulation framework is able to evaluate C-ITS applications from three perspectives; a) human driver; b) wireless communication; and c) traffic systems.

Cooperative Adaptive Cruise Control (CACC) and its applications are cho- sen as the first set of C-ITS functions to be evaluated. Example scenarios from CACC and platoon merging applications are presented, and used as test cases for the simulation framework, as well as to elaborate potential usages of it. Moreover, approaches, results, and challenges from composing the simulation framework are presented and discussed. The results shows the usefulness of the proposed simulation framework.

Place, publisher, year, edition, pages
Halmstad: Halmstad University Press, 2016. p. 35
Series
Halmstad University Dissertations ; 24
National Category
Computer Systems Other Electrical Engineering, Electronic Engineering, Information Engineering Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hh:diva-31987 (URN)978-91-87045-51-6 (ISBN)978-91-87045-50-9 (ISBN)
External cooperation:
Presentation
2016-09-27, Wigforssalen, Halmstad, 13:00 (English)
Opponent
Supervisors
Funder
Knowledge Foundation
Available from: 2016-09-13 Created: 2016-09-12 Last updated: 2018-03-22Bibliographically approved
2. 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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