Privacy-preserving methods to retrieve origin-destination information from connect vehicles.
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2013-01-01
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Edition:Final report.
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Abstract:This report investigates technical approaches to address privacy concerns associated with two innovative
applications enabled by connected vehicle systems, i.e., origin-destination (OD) flow measurement and differentiated
congestion pricing. The former is to retrieve the OD information from connected vehicles while
the latter charges congestion tolls with respect to travel characteristics of connected vehicles, e.g., origins,
destinations or paths that they traverse between their origins and destinations. Since both applications require
tracking vehicles, they may violate the “anonymity by design” principle adopted by connected vehicle
systems. For OD flow measurement, a novel measurement scheme is developed to collect aggregate OD
flow data without compromising motorists’ privacy. For differentiated congestion pricing, an incentive program
is designed to encourage motorists to voluntarily reveal their private information and create a win-win
situation for both motorists and the society.
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