Going Like Sixty
Edit
| Embed Video: |  |
 The Rumbler Siren Shakes Car I know this has happen to you. You’re rocking out to a tune in your car, and suddenly are aware that an emergency vehicle is very close. You never heard the siren. Now a number of police departments are adding a new type siren that can be felt. Kinda like Sir Mix-a-lot booming Baby Got Back from the speakers in the low rider 200 feet behind you.  Although it is no louder than a regular siren, the Rumbler emits low-frequency sounds which shake the ground, and the shockwaves are picked up by other road users. It’s designed for use in 10-second blasts in areas where it is safe for motorists to get out of the way, as long as they know what’s coming. The idea is that they ‘feel’ the emergency vehicle approaching, even if the audio system in their own car is turned up to full volume.
(autoexpress)References: autoexpress 3 Comments: on Innovation in Traffic Control |
 |
|
 |
