Using GIS for Crash Location and Analysis at State DOTs: Case Studies of Select Transportation Agencies

Details

• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  Dahlin, Curtis ; United States. Federal Highway Administration. Office of Planning
• Subject/TRT Terms:
  Data Analysis Data Collection Decision Making Geographic Information Systems Technological Innovations
• Resource Type:
  Tech Report
• Right Statement:
  Public Domain
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Federal Highway Administration. Office of Planning
• Abstract:
  Geographic Information Systems (GIS) are an effective and increasingly essential tool at State Departments of Transportation (DOTs). With applications in all aspects of their work, GIS has helped State DOTs make better transportation decisions that are more informed and delivered in a cost-efficient, timely manner. While State DOTs have been using GIS in varying capacities over the last 30 years, new technological advancements and program initiatives have presented these agencies with new challenges. The Federal Highway Administration (FHWA) promotes the better use of GIS among State DOTs to help them address these challenges through the GIS in Transportation Program. From the 2021 American Association of State Highway and Transportation Officials (AASHTO) GIS for Transportation (GIS-T) State Survey, State DOTs identified ‘crash location and analysis to improve road safety’ as an area they are interested in learning how GIS is applied. This case study report identifies notable practices from State DOTs across the country, specifically describing: How State DOTs and partner agencies collect and store crash data; How State DOTs and partner agencies geographically locate crashes; What applications are used to analyze crash data, including with a mapping component; How analyzing crash data is being utilized in the decision-making process; and What challenges State DOTs face and methods for addressing them. This case study is from the perspective of GIS professionals in State DOTs and is therefore mainly geared toward other GIS professionals regarding how GIS is being used for crash location and analysis.
• Format:
  PDF
• Collection(s):
  Federal Highway Administration Volpe Center
• Main Document Checksum:
  urn:sha-512:046b7563411fbd8b2fd394e75d696f140f076e0513f2c90980746abcf580590e6b6a9eb68b6e3fe4c4d8be0678cf2d9d6b659d3c28dadf78c63a7d58665e833f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/85839/dot_85839_DS1.pdf
• File Type:
  [PDF - 1.39 MB ]