Data management and applications in a world-leading bus fleet

Hounsell, N.B., Shrestha, B.P. and Wong, Alan (2012) Data management and applications in a world-leading bus fleet. Transportation Research Part C: Emerging Technologies, 22, 76-87. (doi:10.1016/j.trc.2011.12.005).


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Automatic Vehicle Location (AVL) Systems are being introduced increasingly in many major cities around the world to improve the efficiency of our road-based passenger transport systems. Satellite-based location and communication systems, particularly the Global Positioning System (GPS) have been the platform for AVL systems which are now supporting real-time passenger information (RTPI), fleet management and operations (FMOs) and public transport priorities (PTPs), to name three key applications. The process of real-time on-board bus location can result in a substantial database where the progress of the bus is stored typically on a second-by-second basis. This is necessary for the primary real-time applications such as those listed above (e.g. RTPI, FMO and PTP). In addition, it is clear that such data could have an array of ‘secondary’ purposes, including use off-line for improving scheduling efficiency and for automatic performance monitoring, thus reducing or removing the need for manual on-street surveys. This paper looks at these and other innovative uses of AVL data for public transport, taking the recent iBus system in London as a current example of a modern AVL/GPS application in a capital city. It describes the data architecture and management in iBus and then illustrates two further examples of secondary data use – dwell time estimation and bus performance analysis. The paper concludes with a discussion of some key data management issues, including data quantity and quality, before drawing conclusions

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.trc.2011.12.005
ISSNs: 0968-090X (print)
Keywords: avl system, public transport applications, avl data management, iBus, bus performance monitoring
Subjects: T Technology > TE Highway engineering. Roads and pavements
Divisions : Faculty of Engineering and the Environment > Civil, Maritime and Environmental Engineering and Science > Transportation Research Group
ePrint ID: 300644
Accepted Date and Publication Date:
14 January 2012Made publicly available
June 2012Published
Date Deposited: 24 Feb 2012 14:48
Last Modified: 31 Mar 2016 14:23

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