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Time required to notify 9-1-1 with automated collision notification systems

Alan J. Blatt, BS, MEng, Dietrich Von Kuenssberg Jehle, MD, FACEP, Anthony J. Billittier IV, MD, FACEP, David G. Wagner, MD, Jill Schleifer-Schneggenburger, BS, MEng

Abstract


Background: Automated Collision Notification (ACN) systems reduce emergency response time to a vehicular crash by immediately alerting a Public Safety Answering Point (PSAP) of the collision and its details.
Methods: An operational field test was performed to evaluate the effectiveness and reliability of the ACN system: a total of 874 vehicles were equipped with ACN systems and, for a period of 29 months, all collisions involving these vehicles were included in a study of the automatic notification time. Fifteen collisions of ACN-equipped vehicles registered with a PSAP. Both the time for the ACN notification to be received and the time for a traditional method of notification to be received were recorded for each crash.
Results: The ACN notified a PSAP of a collision in an average time of 74.2 seconds and between 79.9 and 456.1 seconds sooner than a traditional notification method (paired mean difference 95 percent confidence interval).
Conclusion: The ACN system significantly improves emergency notification time to a motor vehicle crash.


Keywords


automated collision notification (ACN), global positioning system (GPS), public safety answering point (PSAP)

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DOI: https://doi.org/10.5055/jem.2007.0023

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