Vision Zero Greensboro Two Year Action Plan

Greensboro High Injury Network

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The City of Greensboro developed a High Injury Network (HIN) to identify high priority locations throughout their roadway network based on crash severity frequency. The HIN includes roads and intersections that experienced the most fatal, severe, and evident injury crashes for all modes between 2014 and 2018 using an Equivalent Property Damage Only (EPDO) crash frequency analysis. The City provided crash data to build the network. The HIN provides a useful analytical framework that will change over time as safety trends change. A visual representation of the Greensboro HIN is displayed in this map. The light green lines show the HIN segments that represent a little over 7% of the overall transportation network but account for 81% of fatal crashes and approximately 71% of serious injury crashes. The dark green dots represent the intersections within the network that experienced the most fatal and severe crashes; representing 9% of fatal and serious crashes. Together, the locations in the HIN represent a little over 7% of the roads in the City of Greensboro but account for 75% of all fatal and serious injury crashes. The HIN is useful for informing and focusing the infrastructure, education, enforcement, and emergency response management elements of Vision Zero Greensboro. Investing resources on these locations has the highest potential to yield substantial improvements in roadway safety outcomes. As the community grows—and needs and priorities change—this network will change with it.

“The Equivalent Property Damage Only (EPDO) Average Crash Frequency performance measure assigns weighting factors to crashes by severity (fatal, injury, property damage only) to develop a combined frequency and severity score per site. The weighting factors are often calculated relative to Property Damage Only (PDO) crash costs. The crash costs by severity are summarized

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yielding an EPDO value.” -AASHTO Highway Safety Manual 1st Edition (2010)

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VISION ZERO G R E E N S B O R O

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