1. A system for incident detection, comprising: a network including at least one detector for detecting events in the network; a detection module capable of: processing data from the at least one detector; detecting, at a predetermined location over a predetermined time period, data for determining a plurality of decision variables for incident detection; and detecting data corresponding to a decision variable at a particular time t; a calibration module capable of calibrating a plurality of bands for the incident detection based on the plurality of decision variables, wherein: the plurality of bands define thresholds that are time-varying for all measurement locations in the network; and the thresholds are estimated using nonparametric quantile regression; and a determination module capable of: determining the plurality of decision variables over the predetermined time period; determining the decision variable at the time t; and querying whether the decision variable at the time t falls outside a band of the plurality of bands to determine whether an incident has occurred; wherein the querying comprises comparing the decision variable at the time t with a time-varying threshold defined by the band at the time t; wherein an alert is issued in response to a determination that the incident has occurred; wherein the detection module includes at least one sensor performing the detecting; wherein the sensor records occupancy at the predetermined location over the predetermined time period by recording a passage of each traveling element on the network over a fixed loop; and wherein the alert is issued at a command center capable of responding to the incident.