Car Alarms and Noise Pollution

You finally get to sleep and then it happens,survey by the Progressive Insurance Company
somebody car alarm goes off. Do you look? Mostfound that fewer than one percent of
likely you don’t because car alarms go off forrespondents would call the cops upon hearing a
many reasons and not because they are alertingcar alarm.
anyone to theft.Second, alarms are very easy to disable. About
For this reason, groups are trying to ban the use80 percent of stolen cars are taken by
of car alarms. Liu's bill, which was introduced inprofessional car thieves, and they know how to
2002 with nine co-sponsors, would ban the saledeactivate an alarm in just a few seconds,
and installation of audible car alarms in New Yorkaccording to police and criminologists.
City. Moskowitz's bill, introduced in April withWhat do car alarms provide? Noise pollution and
fifteen co-sponsors, would go further, banning thehealth problems.
sale, installation, and use of the alarms. MoskowitzAccording to a recent Cornell University study,
also proposes a mechanism for citizens to reportthey found that traffic noise alone raises blood
annoying alarms to the police, prompting apressure, increases stress hormones, and leads to
warning letter to the car owner."learned helplessness" in schoolchildren. Many
Would the discontinuation of car alarms lead totraffic sounds contribute to the problem, but car
more thefts? Unlikely. According to the Highwayalarms, unpredictable and often exceeding 125
Highway Loss Data Institute, in 1997, while newdecibels, can be especially harmful.
vehicle immobilizers cut theft rates in half, theHow can you prevent auto theft if you disable
study concludes that cars with alarms "show noyour car alarm? There are many other types of
overall reduction in theft losses" compared to carsanti-theft devices available such as the vehicle
without alarms. The alarms just don't work.immobilizer, tracking systems or silent pagers. 
There are two main reasons that car alarms don'tWhatever you choose, it will certainly quiet down
work. First, people know that the vast majoritythe streets at night in contrast to the loud
of blaring car alarms are false alarms, set off bybeeping of the car alarm that does nothing but
passing trucks, electrical malfunctions, or nothingannoy the neighbors and possibly truly protect
at all. So no one responds to them -- often, notyour vehicle.
even the car owners themselves. A recent