California Road Traffic Injuries by Mode and Geography 2002-2010

State of California data details annual fatal and severe road traffic injuries per population and per miles traveled for various transport modes. The dataset covers California, its regions, counties, cities, and census tracts from 2002 to 2010. It highlights that transportation accidents were the second leading cause of death for Californians under 45, averaging 4,018 deaths annually from 2006-2010.

Use Cases

• Analyze injury rates per miles traveled to compare risk across transport modes like motorcycles, buses, and bicycles.
• Model the disproportionate share of pedestrian-car fatalities across minority communities using geographic and demographic breakdowns.
• Calculate annual severe and fatal injury counts per population for California counties and census tracts to identify high-risk areas.
• Investigate temporal trends in collision injuries from 2002 to 2010 for different vehicle types.

Strengths

• Provides data at multiple geographic levels: state, regions, counties, cities, and census tracts.
• Covers a 9-year time range from 2002 to 2010, allowing for longitudinal analysis.
• Includes specific metrics like injuries per population and injuries per miles traveled for detailed risk assessment.
• Sources injury data from the authoritative Statewide Integrated Traffic Records System (SWITRS) and California Highway Patrol.

Limitations

• Data is temporally stale, with the latest year covered being 2010.
• The raw description indicates potential class imbalance, with motorcyclists, pedestrians, and bicyclists having the greatest injury risks.
• Unknown row count and column structure limit precise assessment of dataset scale and features.

Provenance

Source

State of California, California Department of Public Health, Office of Health Equity.

Collection Method

Injury data compiled from the Statewide Integrated Traffic Records System (SWITRS) and California Highway Patrol, processed by the Transportation Injury Mapping System (TIMS).

Time Range

2002 to 2010.

Freshness

Last platform update was 2025-11-23, but the underlying data covers 2002-2010.

Geography

California, including its regions, counties, county divisions, cities/towns, and census tracts.