A high injury network (sometimes shortened to HIN ^[1]) is a way of identifying parts of an urban street network with higher rates of traffic injuries or fatalities, typically with a goal of prioritizing these streets for safety interventions. ^[2] High injury networks have been published by many cities in the US ^{[3] [4]} and Canada ^{[5] [6]} as part of their efforts to work toward Vision Zero. ^[7] While data on fatalities and collisions have long been available in many municipalities, the first HIN per se was published by San Francisco in 2013, ^[2] though work on similar efforts had begun there as early as 2011. ^[8]

Creating a HIN is a data-driven ^[9] exercise, and the analytic methods and data sources used may vary widely. ^{[10] [11]} Most HINs are created at the scale of cities where detailed collision data is collected, though regional efforts at defining a more standardized approach also exist. ^[11]

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