Quote:
Originally Posted by acottawa
I think proximity should be the major criteria for the loud alarms. Is there something immediate authorities want people to do at 3am (evacuate Pickering because of a nuclear accident, watch out the window for a recently kidnapped child, take shelter from a tornado, lock doors because an active crime spree appears to be underway.
If there is nothing immediate they expect people to do (next time you are on the road you should be on the lockout for a white Camry that may have an abducted child, a nasty storm is coming, you should cancel planned travel to Pickering, etc.) then a lock screen notification should suffice.
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Proximity is something Ontario's system just doesn't seem to ever do.
The entire province got the Pickering nuclear false alarm, even though it was only intended for people within 10km of the Pickering plant.
As I mentioned a couple pages back, I once got a tornado alarm on my phone, even though I was 40km away from the edge of the area Environment Canada issued the tornado warning in.
The alerts are sent out to cell towers, and a person gets an alert on their phone if the cell tower they're connected to receives the alert. Given that the maximum range of an LTE broadcast is 3-5km* at the absolute most, pinpointing within 5km is absolutely possible. I have no idea why they aren't doing that.
*Older, slower connection types, like 3G or 2G, have larger broadcast areas, but even then, it caps out to 10km at the absolute most.