The Statewide Integrated Traffic Records System (SWITRS) is a database that serves as a means to collect and process data gathered from a collision scene. The Internet SWITRS application is a tool by which California Highway Patrol (CHP) staff and members of its Allied Agencies throughout California can request various types of statistical reports in an electronic format. Custom reports can be created by the user to capture data relevant to specified criteria such as Jurisdiction, Location, or Annual or Quarterly reports by date. Cases in 2022 and 2023 are preliminary and subject to change or be added to.

Speed (MPH) and Volume (AADT) on primary and secondary roads in San Diego County. Annual Average Daily Traffic represented in ranges of vehicles per road link. Speed presented as peak period (AM = 6:00am - 9:59am, PM = 3:00pm - 6:59pm) annual weekday average speed per road link. Data pulled from Replica estimates.

Estimated population in San Diego region by calendar year based on SANDAG estimates (2010 - 2022) and the California Department of Finance for 2023.

The National Bridge Inventory is an annual dataset maintained by the Federal Highway Administration reporting condition ratings for all major roadway bridges.

The purpose of preparing this dataset is to improve SANDAG's reporting on bridge asset conditions in the region in the newest State of the Commute (SOC). The previous SOC included some minimal bridge condition info from the latest Caltrans' Transportation Asset Management Plan (TAMP).

Gross Regional Product (GRP) in San Diego region by calendar year in current dollars.

Bike Counts represent observed bike volumes at eight locations in the region. Data comes from SANDAG and are aggregated and estimated over periods of one year.

Total Nonfarm Employment in San Diego region by calendar year.

Weekday Peak Period Highway Congestion Volumes (Average Daily Traffic). This data comes from the California Department of Transportation (Caltrans) site Performance Monitoring System (PeMS) and represents the 20 greatest weekday morning commute congestion points and the 20 greatest weekday evening commute congestion points in 2023.

Conditions (Good/Fine/Poor) of locally owned pavements in the San Diego Region that are on the National Highway System (NHS). The pavement condition metrics are used to calculate FHWA performance measures for pavement condition. Conditions are assessed using these criteria for each 0.1-mile-long pavement section. An individual section is rated as being in good overall condition if all of the metrics are rated as good, and poor when two or more are rated as poor. All other combinations are rated as fair. Lane miles in good, fair, and poor condition are tabulated for all sections to determine the overall percentage of pavement in good, fair and poor condition. For the NHS, overall pavement condition is based on outer lane distresses only.

Average peak period (AM departure time = 8:00 am, PM departure time = 5:00 pm) travel times on predefined highway corridors in San Diego County on weekdays (Tuesdays, Wednesdays, Thursdays).