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U.S.
Department of Transportation
Crowdsourcing
Application: Data Collection
§Examples:
□Inrix: provides traffic information using crowdsourced
traffic data,
traditional sensor data, and other relevant data (e.g., incidents, weather, construction, special events)
▪crowdsources data from 3 million GPS enabled vehicles and devices covering 450,000 miles of roadways
□Waze: provides 100% crowsourced, free real-time traffic information on mobile devices
▪crowdsources data from GPS enabled vehicles of volunteers for real-time traffic information and maps (passive participation is sufficient)
▪crowdsources data for map correction (requires active participation)
Image Source: http://www.Inrix.com
Image Source: http://www.waze.com
§Data collection
□Most beneficial when massive amounts of data
needed
□Continuous temporal and spatial coverage