Patent ID: 8892343

Claim:
A traffic monitoring system comprising: a plurality of sensors to generate traffic data representing traffic flow at respective geographical locations; and a system control comprising: a processor configured to execute machine readable instructions from a non-transitory computer readable medium; a sensor interface to receive information from the plurality of sensors; a database to store historical data from the plurality of sensors and information about a planned event having a known start time, an expected end time, and a venue; and an event analysis component that interacts with the processor and is configured to determine a spatiotemporal region, defined as a set of paired sensor and time values, in which traffic is affected by the planned event, a given paired sensor value and time value belonging to the set if, at the time represented by the time value, the sensor detects a delay at its associated location and is part of a continuous series of sensors, including a sensor associated with the venue, in which each sensor is detecting a delay, wherein the event analysis component is configured to generate a directed acyclic graph representing a subset of the plurality of sensors within a threshold distance of the venue.