PEMS03, PEMS04, PEMS07 and PEMS08, these four datasets are constructed from four areas in California. All the data was collected from the Caltrans Performance Measurement System (PeMS) and the spatial adjacency matrices for each dataset were built using a distance-based real road network. PEMS03 has 358 sensors with a duration of 3 months. PEMS04 has 307 sensors with a duration of 2 months. PEMS07 has 883 sensors with a duration of 3 months. PEMS08 has 170 sensors with a duration of 2 months.