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A Cooperative Positioning Service for Multi-Modal Public Transit Situations

  • G. Retscher (a1) and F. Obex (a2)

A better understanding of passenger movement in multi-modal transit situations is the major aim of this study. By using a novel Cooperative Positioning (CP) approach, algorithms can be generated which considerably increase the accuracy of person tracking. Smooth transit at stations is enabled, thus the total waiting time for routing at the traffic interchange is reduced. A Location-Based Services (LBS) user is guided by the service and located with the assistance of the whole user group. In addition to the technological developments, the acceptance and end-user needs are considered. End-users of such a service have the right to withdraw their consent for transferring location-based and other personal data at any time. They also receive clear and comprehensive information about when and why they reveal their personal data and location and its further use. In this paper, the concept is introduced followed by a comprehensive discussion of the suitable CP localisation techniques as well as an implementation strategy. Furthermore, ethical and usability aspects are discussed to ensure user-friendly results.

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Cavoukian, A. (2009). Privacy by Design: The 7 Foundational Principles, Information & Privacy Commissioner, Ontario, Canada,, accessed 19 September 2015.
Chang, N., Rashidzadeh, R. and Ahmadi, M. (2010). Robust Indoor Positioning using Differential Wi-Fi Access Points. IEEE Transactions on Consumer Electronics, 56(3), 18601867.
Chen, R., Pei, L., Liu, J. and Leppäkoski, H. (2012). WLAN and Bluetooth Positioning in Smart Phones. In Chen, R. (ed.): Ubiquitous Positioning and Mobile Location-Based Services in Smart Phones. IGI Global, Hershey PA, USA, 4468.
Comyn, G., Olsson, S., Guenzler, R., Ozcivelek, R., Zinnbauer, D. and Cabrera, M. (2006) User Needs in ICT Research for Independent Living with a Focus on Health Aspects, Report, European Commission, Brussels, Belgium.
Cossetta, A. and Palumbo, M. (2014). The Co-production of Social Innovation: the Case of Living Lab, in: Dameri, R P, Rosenthal-Sabroux, C (eds): Smart City, Springer, Switzerland, 221235.
Feuerstein, M. J., Blackard, K. L., Rappaport, T. S., Seidel, S. Y. and Xia, H. H. (1994). Path Loss, Delay Spread, and Outage Models as Functions of Antenna Height for Microcellular System Design. IEEE Transactions on Vehicular Technology, 43(3), 487498.
Ghassemzadeh, S. S, Greenstein, L. J. Kavcic, A., Sveinsson, T. and Tarokh, V. (2003) UWB Indoor Path Loss Model for Residential and Commercial Buildings. In Proceedings of the VTC2003-Fall Conference, October 6-9, U.S.A.
Grejner-Brzezinska, D. A. and Toth, C. (2013). GPS-challengend Environments – Can Collaborative Navigation Help? In Proceedings of the 8th International Symposium on Mobile Mapping Technology, May 1-3, Tainan, Taiwan.
Haklay, M. and Nivala, A. M. (2010). User-centred Design. in: Haklay, M (eds): Interacting with Geospatial Technologies, Chinester, John Wiley & Sons, 91106.
Hofer, H. and Retscher, G. (2017). Combined Wi-Fi and Inertial Navigation with Smart Phones in Out- and Indoor Environments. In Proceedings of the VTC2017-Spring Conference, June 4–7, Sydney, Australia.
Hu, B. (2013). Wi-Fi Based Indoor Positioning System Using Smartphones. Master Thesis, RMIT University, Melbourne, Australia, 77 pgs
Jonuschat, H., Zinke, M. and Bock, B. (2014). Die Nutzersicht: Akzeptanzfaktoren und Integration ins Post-Processing – The User View: Acceptance Factors and Integration into Post Processing, in: Schelewsky, M., Jonuschat, H., Bock, B. and Stephan, K. (eds.): Smartphones unterstützen die Mobilitätsforschung – Neue Einblicke in das Mobilitätsverhalten durch Wege-Tracking – Smartphones Help Mobility Research – Novel Views for Mobility Behaviour due to Trajectory Tracking, Springer Verlag, Germany, 83102 (in German).
Kealy, A., Retscher, G., Toth, C., Hasnur-Rabiain, A., Gikas, V., Grejner-Brzezinska, D. A., Danezis, C. and Moore, T. (2015) Collaborative Navigation as a Solution for PNT Applications in GNSS Challenged Environments – Report on Field Trials of a Joint FIG/IAG Working Group. Journal of Applied Geodesy, 9(4), 244263.
Rappaport, T. S. (1996). Wireless Communications: Principles and Practice, Upper Saddle River, U.S.A., Prentice Hall PTR, 641.
Retscher, G., Zhu, M. and Zhang, K. (2012) RFID Positioning. In Chen, R. (ed.): Ubiquitous Positioning and Mobile Location-Based Services in Smart Phones, Hershey PA, USA: IGI Global, 6995
Retscher, G. and Obex, F. (2015). InKoPoMoVer – Cooperative Positioning for Real-time User Assistance and Guidance at Multi-modal Public Transit Junctions. Journal of Applied Geodesy, 9(3), 198207.
Retscher, G. and Tatschl, T. (2016a). Differential Wi-Fi – A Novel Approach for Wi-Fi Positioning Using Lateration. In Proceedings of the FIG Working Week, May 2–6, 2016, Christchurch, New Zealand.
Retscher, G. and Tatschl, T. (2016b) Indoor Positioning Using Wi-Fi Lateration – Comparison of Two Common Range Conversion Models with Two Novel Differential Approaches. In IEEE Xplore, 2016 4th International Conference on Ubiquitous Positioning, Indoor Navigation and Location Based Services (UPINLBS), Shanghai, China.
Retscher, G. (2017). Fusion of Location Fingerprinting and Trilateration Based on the Example of Wi-Fi Positioning. In Proceedings of the Indoor3D Workshop, September 19–20, 2017, Wuhan, PR China.
Retscher, G. and Hofer, H. (2017). Wi-Fi Location Fingerprinting Using an Intelligent Checkpoint Sequence. Journal of Applied Geodesy, 11(3), 9 pgs.
Retscher, G., Hofer, H., Kealy, A., Gikas, V. and Obex, F. (2017) Cooperative Localization in Indoor Environments Using Constrained Differential Wi-Fi and UWB Measurements. In Proceedings of the ION GNSS+ 2017, September 25-29, Portland, Oregon, U.S.A.
Retscher, G. and Roth, F. (2017). Wi-Fi Fingerprinting with Reduced Signal Strength Observations from Long-time Measurements. in: Gartner, G, Huang, H. (eds.), Progress in Location-Based Services 2016, Lecture Notes in Geoinformation and Cartography, Springer Verlag, 324.
Schuler, D. and Namioka, A. (1997). Participatory Design – Principles and Practices, Lawrence Erlbaum Associates.
Wanka, A. (2014). Social and Ethical Aspects of LBS Research, Personal conversation in preparation of the InKoPoMoVer study.
Yang, J. and Chen, Y. (2009). Indoor Localization Using Improved RSS-Based Lateration Methods. In Proceedings of the IEEE GLOBECOM 2009 Conference, November 30-December 4, Honululu, Hawaii, USA.
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The Journal of Navigation
  • ISSN: 0373-4633
  • EISSN: 1469-7785
  • URL: /core/journals/journal-of-navigation
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