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<DIV><FONT face=Verdana>Devido à constante distracção (utilização ilegal de
telemóveis, musica em "altos berros", etc) enquanto conduzem
de muitos automobilistas, que alegam não "ouvirem" as sirenes de
emergência das ambulâncias e carros da policia, o que tem provocado
graves acidentes com estes veículos prioritários;</FONT><FONT
face=Verdana> os serviços de socorro de Oklahoma vão passar a utilizar umas
novas sirenes, que alem do comum som estridente, vão emitir também tons em baixa
frequência sub-audíveis que tem como finalidade fazer vibrar os condutores e os
seus carros.</FONT></DIV>
<DIV><FONT face=Verdana></FONT> </DIV>
<DIV><FONT face=Verdana>Assim, se for para estes lados em férias, não se admire
e nem se confunda, quando ouvir uma sirene também lhe parecer que estás a
acontecer um "tremor de terra".</FONT></DIV>
<DIV><FONT face=Verdana></FONT> </DIV>
<DIV><FONT face=Verdana>Era capaz de ser uma boa ideia implementar o mesmo pelo
menos em Lisboa e no Porto.</FONT></DIV>
<DIV><FONT face=Verdana></FONT> </DIV>
<DIV><FONT face=Verdana>João Costa, CT1FBF</FONT><!-- Converted from text/plain format --></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
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<H1><SPAN>Ambulance Siren Uses Vibrations</SPAN></H1><!--endclickprintinclude--><!--begin page--><!--startclickprintinclude-->
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<P><FONT face=Verdana>In Oklahoma, the Emergency Medical Services Authority has
equipped one ambulance with a new Howler siren that emits low-frequency tones,
as well as sirens, that penetrate objects such as cars with vibrations within
200 feet to alert drivers. According to the <I>Associated Press,</I> EMSA plans
to install these sirens on all 77 units in Oklahoma within six months, so if
radios are too loud and approaching ambulances aren't heard, they will be
felt.</FONT></P><!--end paragraph--><!--begin paragraph-->
<P><FONT face=Verdana>The EMSA told <I>AP</I> that its vehicles have been
involved in 16 intersection accidents this year, typically caused by an
unyielding driver. Ambulances accounted for all but one of those, EMSA
spokeswoman Tina Wells told <I>AP.</I></FONT></P><!--end paragraph--><!--begin paragraph-->
<P><FONT face=Verdana>"The most frequent thing motorists say to us is they
didn't see the ambulance coming," Wells said at a news conference on Nov. 11,
where the new technology was demonstrated. During the demonstration, two
ambulances (one with and one without the Howler siren) were parked near each
other with plastic stepladder with three glasses of liquid in between. The
liquids in all three glass rippled when the Howler sounded.</FONT></P><!--end paragraph--><!--begin paragraph-->
<P><FONT face=Verdana>"It's going to make going through intersections much
safer," Tulsa Police Officer Mike Avey told <I>AP</I>. "People are on their cell
phones, people have $1,000 sound systems. You're going to feel it."</FONT></P><!--end paragraph--><!--begin paragraph-->
<P><FONT face=Verdana>The new sirens cost less than $400 each, meaning the
entire EMSA fleet in Oklahoma can be outfitted for less than $40,000.</FONT></P><!--end paragraph--><!--begin paragraph-->
<P><FONT face=Verdana>"A moderate accident is going to cost $15,000 in body
damage alone," Wells told <I>AP</I>. "We see the potential for recouping this
almost immediately."</FONT> </P>
<P><FONT face=Verdana>Fonte: </FONT><FONT face="Times New Roman">Fire Chief
Online Source Guide.</FONT></P></DIV></BODY></HTML>