https://www.newscientist.com/article/dn20326-noise-kills-and-blights-lives-in-europe
kill the sirens at night - anytime after dark - with the new LED flashing lights, there is almost no need for sirens - especially at intersections which have Opticoms -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/massfire. For more options, visit https://groups.google.com/d/optout.
