|thekek wrote: *||Mon Aug 17, 2020 4:20 am|
Should a situation arrise where there is a high chance of a war/attack, will it be worthwhile and practical for "sirenless" cities (NYC, LA, DC, etc) to deploy temporary mobile sirens as an extra measure to warn citizens of a possible attack? And should the threat be subsided they can just stow them away until if needed again.
Do you ya'll think that this is going to be effective and a good option? Or something that won't make a difference and is a waste of money?
Let me know of your thoughts!
I'm referring to sirens like these:
It wouldn't be practical for a few reasons. Mobile sirens are mainly used to deploy in areas where the main pole mounted sirens was taken out by an act of god or some other kind of man made accident or in areas like a large park that would be converted into an amusement park or something of that nature to provide temporary coverage. Most times you'll never see them installed as permanent installations.
For one mobile trailer mounted sirens have to be deployed in mass making them somewhat cumbersome to deal with. Seabrook nuclear did this with Whelen WPS-4000II's and eventually ditched their truck mounted sirens for pole mounted ones. The battery situation would be a mess, since you can't let them sit without being put under load for extended periods. This shortens the lifespan and reduces the capacity of the batteries much like a car battery. Another is the shear size of the number of sirens to cover an area. Using Columbus, GA as an example our system currently uses 47 sirens to cover the area. 47 actually isn't enough to offer the populated areas overlapping overage as the city/county has grown over the years. We'd probably need to expand the system to over 50 to accomplish this. On its own that's already a lot of mobile sirens to maintain, and Columbus is a fraction of the size as larger cities without active sirens. Mobile sirens cost more compared to typical ones for permanent installation AFAIK. Cost is already the driving force for many cities causing them to avoid sirens altogether due not only to the upfront cost of installation but also the cascading costs of maintaining the batteries and/or the incoming electricity. With AC/DC systems and DC only systems with AC charging you have to pay for new batteries and the grid power. With solar systems you'll still have to replace the batteries, and AC only systems need the grid power. All of that along with the fact that this type of system would need to be rapidly deployed manually makes them a definite no for this type of warning. If we ever were in a situation like that where sirens were absolutely necessary I could see towns and cities probably hopping to do permanent installations with solar power. Dress the pole up, stick it in the hole, and throw some batteries and that sucker and on to the next one.
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