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<a href="/ITS/benecost.nsf/SingleLink?ReadForm&Tax=Intelligent+Transportation+Systems+Crash+Prevention+%26+Safety&Location=Lessons">Crash Prevention & Safety</a> > <a href="/ITS/benecost.nsf/SingleLink?ReadForm&Tax=Intelligent+Transportation+Systems+Crash+Prevention+%26+Safety+Collision+Notification&Location=Lessons">Collision Notification</a>

In an effort to improve response times and save lives, collision notification systems have been designed to detect and report the location and severity of incidents to agencies and services responsible for coordinating appropriate emergency response actions. These systems can be activated manually (Mayday), or automatically with automatic collision notification (ACN), and advanced systems may transmit information on the type of crash, number of passengers, and the likelihood of injuries.

EU-mandated automated emergency call technology, eCall, is expected to reduce response time to road accidents by up to 50 percent and help save up to 1,500 lives per year.(03/27/2018)

Autonomous emergency braking (AEB) systems can reduce the number of moderate to severe injuries in head-on collisions by 73 percent.(09/12/2012 )

Korean study finds Automatic Crash Information Notification Systems would reduce freeway fatalities by 11.8 to 18.1 percent.(August 1, 2012)

Automatic Crash Notification (ACN) systems can reduce road traffic deaths by 1.5 to 15 percent.(September 2009)

An enhanced Automatic Collision Notification System enables three quarters (75.9 percent) of injured occupants to be correctly identified as seriously injured, by using only data automatically collected and transmitted by the vehicles.(June 2009)

Implementing an enhanced Automatic Collision Notification (ACN) system in all passenger vehicles in the US could help improve outcomes for over 15,200 drivers each year involved in moderate to high severity crashes. (June 2009)

Over a 20-year lifecycle, NG9-1-1 would likely cost about the same as maintaining the status quo of the current 9-1-1 system, but deliver 80 percent additional value.(03/05/2009)

In Erie County, New York, a field operational test found that automated collision notification systems reduced incident notification time from an average of 3 minutes to less than 1 minute.(February 2001)

Two surveys asked motor carriers what the motivation was for safety technology installation. A clear majority of the respondents indicated that crash reduction (68%) and lower insurance rates (52%) were key benefits.(22-26 January 2006)

CVO inspectors participating in CVISN focus groups felt that CVISN technology saved time, and improved the speed and accuracy of data reporting. (March 2002)

In Puget Sound, Washington, a survey of drivers equipped with in-vehicle emergency communications found that 95 percent of respondents felt "more secure" with Mayday voice communications, and 70 percent felt "more secure" with data communications.(September 1997)

Multi-state analysis suggests active safety and advanced headlighting systems have contributed to a 46 percent and 81 percent reduction in forward and rear collisions, respectively.

Prototype Crash Warning Interface displays for Connected Vehicle-based motorcycle Crash Warning System show considerable promise for implementation.(10/20/2015)

V2V intersection and left turn assist applications can reduce crashes and injuries and may save between 777 to 1,083 lives per year.(08/01/2014)