A design prototype by Datopian, not an official website
Find a Commonwealth ResourceU.S Department of Transportation
The data in this data environment was collected from the Pasadena, California testbed, namely I-210, SR 134, and nearby arterials. The source of these data is from the Caltrans – Performance Measurement System (PeMS).…
Updated Oct 25, 2026
U.S Department of Transportation
The data in this repository were collected from the San Diego, California testbed, namely, I-15 from the interchange with SR-78 in the north to the interchange with SR-163 in the south, along the mainline and at the…
Updated Oct 25, 2026
U.S Department of Transportation
The data in this data environment was collected from the Pasadena, California testbed, namely I-210, SR 134, and nearby arterials. The source of these data is from the National Center for Environmental Information –…
Updated Oct 25, 2026
