An operational test of Mayday Plus, a crash notification system designed to enable more rapid and better-informed emergency response to vehicle crashes, is under way in Minnesota. The field tests, which began in November 1999, will be used to evaluate the system's capabilities and benefits. The system was installed in 120 vehicles and will notify the Minnesota State Patrol and Mayo Clinic emergency dispatch centers if a crash occurs. Mayday Plus is an extension of in-vehicle equipment developed during the Automated Collision Notification (ACN) field tests in New York. Sponsored by the National Highway Traffic Safety Administration, the ACN project developed crash severity reporting capabilities. Building on the foundation developed by ACN, Mayday Plus automatically notifies authorities in the event of a crash. The differences between the two are that Mayday Plus sends more data, establishes communication between the authorities and passengers, and intelligently routes emergency data to responders on the basis of the vehicle's location and the type of emergency. When a crash occurs, an in-vehicle device relays information on the vehicle's location, direction of impact, change in velocity during the crash, and final resting position. After transmitting the data, the system opens a direct voice connection between an emergency dispatch center and the passengers. Because Mayday Plus sends immediate notification and provides the crash location, emergency assistance can be dispatched without delay. By saving time, the system saves lives. Response time is an especially critical concern in crashes that occur in rural areas. In Minnesota 30% of miles traveled are on rural roads, yet 70% of fatal crashes occur on these roads. (Entire Article)


  • English

Media Info

  • Pagination: p. 35
  • Serial:
    • TR News
    • Issue Number: 208
    • Publisher: Transportation Research Board
    • ISSN: 0738-6826

Subject/Index Terms

Filing Info

  • Accession Number: 00797052
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: HS-043 073
  • Files: HSL, TRB, USDOT
  • Created Date: Aug 29 2000 12:00AM