Sytadin: travel time and instantaneous speed measured on fixed stations detectors (magnetic loops) installed all over Paris agglomeration highway network. 1606 stations with frequency of one minute during 3 months.
Main possible goals
(i) Data analysis: search for Spatial, temporal and Spatial+temporal features
(ii) Traffic reconstruction problem: predict the data corresponding to silent stations given observations (speed, travel time, density..) from active ones for say 5%, 10%, 20%, 50% and 80% of active stations.
(iii) Traffic prediction problem: given available observations (speed, travel time, density..) at time t, predict states at time t+h for all stations, for e.g. time horizon h=10, 20, 30, 60 minutes.
(iv) Open problem: find something meaningful into the data.