Spatial Distribution of Alcohol Involved Crashes in Louisiana
Track: Highways and Roads
Authors: Jeff Dickey, Bethany Campbell
We employ Optimized Hot Spot Analysis using the Getis-Ord Gi* statistic to map statistically significant hot and cold spots of recorded and predicted driver alcohol based on the driver's home zip code. Analysis of recorded alcohol shows hot spots in rural areas and cold spots in metropolitan areas. With analysis of predicted alcohol one large cold spot disappears suggesting under recording of alcohol involved crashes. This is useful for identifying areas for enforcement and training.