Accident Data Use and Geographic Information System (GIS)

Details

• Creators:
  Thieman, Suzette
• Corporate Contributors:
  Washington (State). Department of Transportation ; National Research Council (U.S.). Transportation Research Board
• Subject/TRT Terms:
  Access Management Standards Cheyenne Area Transportation Planning Process (ChATPP) City Of Cheyenne (Wyoming) Crash Data Databases Data Collection Factor Analysis Geographic Information Systems GIS High Risk Locations Highway Factors In Crashes Laramie County (Wyoming) Road Safety Statistical Analysis

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• DOI:
  https://doi.org/10.21949/1404364
• Resource Type:
  Proceedings
• Geographical Coverage:
  Wyoming ; United States
• Corporate Publisher:
  Washington (State). Department of Transportation
• Abstract:
  The Cheyenne Area Transportation Planning Process (ChATTP) has developed a PowerPoint presentation demonstrating how to use an existing accident database with GIS software. The slides are followed by a hands-on demonstration of the GIS system using the actual data. ChATPP has been intensely involved and a leader in GIS development in the City of Cheyenne and Laramie County. Recently we have taken the steps to try and interest users, that are not GIS technical people, in the use of ArcView in a desktop application. One of the projects that has been developed, is making accident data obtained from Wyoming Department of Transportation (WYDOT) available to ArcView users. How this project was developed is explained briefly below. What is important to stress is that the information is available to users and demonstrating to them how the software works. Background: The Cheyenne urban area has a population of approximately 72,000 people. We have a slow but steady growth of about 1% and is the northern most city along the rapidly growing Front Range in Colorado. The Metropolitan Planning Organization (MPO) is responsible for transportation planning in the urban area. To assure the safety of the traveling public as the population grows, we are looking at access management standards for our main arterials. Need: Our first step was to establish if there was a need for access management standards. The number and cause of collisions are the main determinate of the safety of the roadway. So, we needed to be able to examine, in depth, the collisions that occurred along our arterial roadways to determine if they could be prevented by having access control measures in place. GIS: The Wyoming Department of Transportation is responsible for collecting all of the accident information in Wyoming. Using an extract of the state's database, we obtained database files for accidents from 1984 to 1996. The files were then put into ArcView GIS to create maps of specific locations or to use the databases for queries. The end result could then be displayed graphically as well as in tabular form. The GIS also allows inquiries on the map that is linked to the database.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:f3569283625b1ae7bb090ee968ca782d6a5f2b1a6c03a59c1585efb845f8a7b59cf2d9e872bda4cdd11d72b9694dff25ffdc3e94265251b3730322a995097930
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/4406/dot_4406_DS1.pdf
• File Type:
  [PDF - 351.01 KB ]