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Erschienen in:
2013 | OriginalPaper | Buchkapitel
2. Data Sources and Management
verfasst von : Piyushimita (Vonu) Thakuriah, D. Glenn Geers
Erschienen in: Transportation and Information
Verlag: Springer New York
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Abstract
For the last twenty or so years transportation system managers have received data detailing system performance from a range of infrastructure based sensors such as inductive loops or CCTV cameras. While these sensors have enabled performance increases to be garnered from transportation networks, the data they provide is limited in scope, timeliness and availability. However, the explosive growth in mobile devices and communications network capability has created a fertile ground for new developments in transportation-oriented sensing. It is the purpose of this chapter to first take a look back at extant infrastructure-based sensors and then move on to positioning, communications, participatory sensing and finally data management issues.