Vision Zero begins with good data and transparency. As part of developing the County’s Vision Zero Action Plan, County staff will use a proactive, data-driven approach to better identify and address the top risk factors before they result in a fatality or serious injury.
The County collects and analyzes data to understand trends, patterns, and systemic safety issues: for example, the locations where fatal and serious crashes have already occurred, how safety interventions are performing, and the neighborhoods/populations disproportionately affected by safety risks. In turn, the findings of the data analyses guide public education, priority actions, and funding.
Throughout the Action Plan process, the County’s data, analyses, and progress reports will be readily accessible to the community to ensure that the Vision Zero effort is transparent and meaningful. Read below to learn more about the data analysis efforts available to date.
The analyses shared below use data developed by the Virginia Department of Transportation’s Highway Safety Section. The main source of the data is owned and maintained by the Virginia DMV.
This data includes only crashes that resulted in over $1500 in damage from both the Arlington County Police Department and Virginia State Police, so the numbers may not directly align with crash reports produced by the Arlington County Police Department.
High Injury Network
Arlington County staff mapped all serious and fatal injury crashes across for the 2017-2019 three-year reporting period. Based on the location of these critical crashes, we identified what Vision Zero safety professionals call the “High-Injury Network” – the corridors with where critical crashes are concentrated. In Arlington, the High Injury Network represents just 7% of over 555 miles of roadway in Arlington County, but these corridors saw 78% of all serious or fatal crashes reviewed in our research.
Systemic Critical Crash Analysis
Arlington County staff are reviewing the most recent five years of crash data in an updated Systemic Analysis that will investigate the relationships between crash factors, transportation infrastructure, land uses, and equity indicators to better understand why and where crashes happen, as well as who is disproportionately affected by crashes.
Stay tuned for results of this systemic evaluation in late 2021!
Arlington County also conducts an annual analysis of “hot spots”, or locations with high concentrations of crashes. Hot spots are identified for vehicle, bicycle, and pedestrian crashes. County staff review each location and identify/add safety improvements that will reduce crashes. While the hot spot program does not focus specifically on serious or fatal injuries, it allows County staff to reduce the overall number of crashes—and thus the likelihood of each crash being severe.
2018-2020 Hot Spot Analysis coming soon!