High Injury Network The development of a HIN is a key element of a safety plan because it identifies areas that have historically seen the greatest density and severity of crashes. This allows cities, counties, and metropolitan areas to prioritize investments in safety treatments. For the City of Fort Worth, mode-specific HINs have been developed to focus on crashes involving vulnerable road users (VRU), including pedestrians and bicyclists, motorcyclists, motor vehicles, and commercial motor vehicles (CMV). These maps can be found in Appendix D of this report. This section of the report describes crash data sources, methodologies, and thresholds used for the development of the High Injury Networks. The HIN development process involves developing crash density estimates along street corridors throughout the region, weighing them by crash severity, and then identifying the highest crash- risk sections for each mode. Both intersection and segment crashes were included in this evaluation, as the focus is on overall corridor conditions. The HIN aims to identify corridors that may warrant special attention. Identification of these streets helps a city prioritize investment in areas where crash history demonstrates serious problems and effectively communicates these priorities to community members. Sliding Windows Analysis Methodology A sliding windows analysis helps understand historical crash data throughout a transportation network and identify segments with the highest crashes, weighted by crash severity. The analysis determines the number and severity of crashes in a one-mile window on a roadway and shifts that window along the roadway 1/10 of a mile at a time. In this approach, the virtual window is
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