Are Forward Collision Warning systems effective?

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Are FCW systems effective?

FCW systems are a comparatively new feature, and also the precise way these systems work can vary widely across manufacturers. thanks to both of those factors, there’s limited information on just what percentage of crashes are avoided or mitigated by each of the FCW systems.


One way to estimate the potential effectiveness of a replacement safety system is to calculate the number of crashes that are relevant to the system. Crashes are considered relevant once they possibly could are avoided or mitigated by the protection feature. within the case of FCW systems, the Insurance Institute for Highway Safety (IIHS) determined that FCW systems are relevant to angle crashes2 without braking, front-to-rear crashes without braking, and a few single-driver crashes without breaking. The IIHS determined that braking on a part of the colliding vehicle demonstrated that the driving force recognized the danger and so a collision warning might not are necessary. supported this determination, it’s estimated that FCW systems are relevant to 76% of angle crashes, 69% or front-to-rear crashes, and 23% of single-driver crashes (Farmer 2008).


Although calculating the number of relevant crashes provides a useful benchmark in terms of the potential of recent safety technology, it can not be reasonably expected that safety technology will prevent or mitigate all the crashes to which it’s relevant. However, recent testing of FCW systems by the IIHS has shown that this characteristic reduces property damage liability claims for front-to-rear collisions, further as injury claims (IIHS 2012). Of note, FCW systems that featured autonomous braking were related to 14% fewer property damage liability claims than FCW systems that didn’t have autonomous braking (IIHS 2012).

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