Publication Detail
Rapid Reporting of Vehicle Crash Data in California to Understand Impacts from COVID-19 Pandemic on Traffic and Incidents
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UCD-ITS-RR-20-95 Research Report UC ITS Research Reports Available online at: https://escholarship.org/uc/item/078193ht |
Suggested Citation:
Waetjen, David P. and Fraser M. Shilling (2021) Rapid Reporting of Vehicle Crash Data in California to Understand Impacts from COVID-19 Pandemic on Traffic and Incidents. Institute of Transportation Studies, University of California, Davis, Research Report UCD-ITS-RR-20-95
In 2015, the Road Ecology Center at UC Davis developed a web-based method to collect all incident data that appear on the CHP real-time incident-reporting website (https://cad.chp.ca.gov/). These data are assembled into a database called CHIPS, the California Highway Incident Processing System. Previous analyses suggest that these data are more spatially accurate than other state resources (e.g., the Statewide Integrated Traffic Records System (SWITRS)). Because they are collected and organized in real-time, they can also be shared and queried more easily. The current project developed a web-portal that supports queries for counties and specific highways (https://roadecology.ucdavis.edu/resources/covid19- traffic). The results shown make apparent the reduction in crashes and traffic during the summer 2020 peak of the COVID19 pandemic.
Key words: Traffic incidents, traffic data, crashdata, crash rates, databases, websites, data fusion, real time information, geospatial data