Detecting Traffic Anomalies in Urban Areas Using Taxi GPS Data

Table 2

Dataset statistics.

	Data duration	Mar.–Aug. 2012
GPS data	Taxies	15,210
	Effective days	74
	Trips	21,510,880
	Avg. sampling interval	60 s
Road network	Road grade	Major and minor roads
	Subregions	387
Reports	Avg. reports per day	28