Well, since I am on campus now and have a decent break of time...
I originally brought the issue up back in 2005 about our problems with warning. My campus straddles St. Louis County and St. Louis City, the two of which are independent of each other. There is a city tornado siren, Whelen 2807 at the NE corner of campus (though lower in elevation than the campus on its hill) and there is a county Whelen 4000 about a quarter of a mile from the SW corner of campus. These two systems are activated separately and St. Louis County has a much more lenient activation policy in that they will set off the sirens if there is a tornado warning for an adjacent county and then again when the warning is itself for St. Louis County. This means you could have a siren going off multiple times on half the campus, and no siren going off at all on the other half....not that our campus is even all that large.
So other than for the obiovus use in campus emergencies such as a shooter, Wash U had the great idea to tie the new siren system so that they would activate every time either the county or city set their own sirens off, as well as teh capability to be activated just by Wash U. So they want to have sirens set to at least 2 different frequencies and tone sets (possibly even 3 would be necessary). Esepcially when they need to have live voice capability and I'm sure SCADA, I think wiring up a system that way would be asking for more trouble than ever. It will also lead to the sirens being way overactivated, which is the exact reason why many colleges control their own siren systems, even within a city or county that has a large system. I would think that they would go with Whelens since the city uses all Whelen 2800s and the county is going over to Whelen 2900s now. I have not heard exactly how far they are on actually getting a system in place vs. just being in the planning stages, but I do plan on making sure they do it right.
As a side note on STL sirens...you know there are also a few old STL-10s floating around in the city that somehow missed the mass removal...but I'm not going to give those locations out on here right now
![Smile :)](./images/smilies/icon_e_smile.gif)
There are also sirens scattered around the city at old factories, old military facilities, and at the current chemical plants along the riverfront.