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A Model to Improve Timeliness and Geolocation Data Quality of Crashes and Citations

Abstract? Locations of crashes and citations are traditionally recorded using text data types e.g. using intersection names and distance from intersections, or a street address, and/or latitude, and longitude coordinates in text form. There are well-known issues that can lead to reduced timeliness and poor data quality when it comes to converting text locations to geolocations, a process that is required to plot crashes and citations on the map, but most importantly, to use them properly for spatial analysis. Many agencies throughout the country address this issue by mapping crashes through manual geocoding, a process that is costly, causes major time delays and can result in questionable data accuracy. For the State of Florida, as the 3rd largest state in the country, these problems are even more challenging due to the decentralized model of vendors and agencies and the sheer size of the data – at present Florida has approximately 10 e-crash and e-citations vendors serving over 400 law enforcement agencies that collectively report over 700,000 crashes and over three million citations each year. Florida acknowledges that accurate, timely and complete crash data is vital for making data-driven traffic safety decisions. This study presents a model that the State of Florida has developed to address this problem through an organizational partnership between the Department of Highway Safety Motor Vehicles and the University of Florida, and through a technological approach. This approach, led to the development of a standardized, vendor-independent solution, designed to be utilized by all the vendors and law enforcement agencies to accurately and timely report the geolocation of crashes and citations. This presentation shows how the model is built, how vendors are implementing it, how law enforcement agencies are using it in practice, and presents the resulting improvements in data timeliness and accuracy. The presentation includes some of the technical achievements, especially related to the unified base-map that includes a linear referencing system through an additional partnership with the Florida Department of Transportation. Other aspects include transmission of the geolocation information from law enforcement agencies to the state via an expansion of the XML format used for data transmission, and the organizational approach of handling the large number of vendors and agencies. The presentation shares with the audience lessons learned from this experience and how to apply them for future improvements.


Richie Frederick is a Program Manager for the Florida Department of Highway Safety & Motor Vehicles, Division of Motorist Services, Bureau of Records, Crash Data and Record System Support Program. The Bureau of Records is responsible for program oversight for Uniform Traffic Citations, Crash Records, and the custodian of driver and motor vehicle records. Mr. Frederick has held various positions with the Department of Highway Safety and Motor Vehicles for the last ten years.

 

 

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