4 ms·

Yes and no. There seem to be multiple points of failure on the critical path. Yes the interface might be sub-perfect, but there is also a human on the critical

by pintxo 7y ago

Yes and no. There seem to be multiple points of failure on the critical path. Yes the interface might be sub-perfect, but there is also a human on the critical path, who started work at 7am, meaning he's been working for 12 hours now. There is a reason regulation usually mandates limited hours for safety critical jobs. Why not automatically inform the fire department, ensuring that there is not one single critical path but an alternate option? Relying on the presence and correct reaction of a single security guard sounds like a less than perfect idea.

elliekelly 7y ago
> Why not automatically inform the fire department, ensuring that there is not one single critical path but an alternate option? I think this was the most confusing part of the response to me. Even my home security system calls the fire department by default and my condo isn’t an 850 year old landmark. It made me wonder whether the system produced a lot of false alarms that would make an immediate default response impractical.
- pintxo 7y ago
  That might be an issue. But then one might not need to send a whole fire brigade from t0. Maybe just send a single truck, or a single car.
  - zhte415 7y ago
    This depends where you are, I suppose. Fire Brigades in urban areas typically dispatch two engines that take two different routes to ensure one route is not congested, and at least one engine is on a faster, if not shorter, path than the other. Even real-time route planning cannot mitigate an unexpected cause of congestion yet to occur. Depends on area. Dense urban streets where contagion of fire may require this while a remote home in a rural may mean this route mitigation isn't necesary. However in both and all cases a rapid response is needed as lives are at risk.
- throw0101a 7y ago
  > Even my home security system calls the fire department by default and my condo isn’t an 850 year old landmark. Non-residential buildings are often charged for false alarms, so standard procedure is to have a human confirm things first: * https://gps-securitygroup.com/the-role-of-security-guard-regarding-fire/ https://gps-securitygroup.com/the-role-of-security-guard-reg... If confirmation is not done in x minutes, there is an automatic call though (with the requisite charge back for false alarms).

by pintxo 7y ago

elliekelly 7y ago

> Why not automatically inform the fire department, ensuring that there is not one single critical path but an alternate option? I think this was the most confusing part of the response to me. Even my home security system calls the fire department by default and my condo isn’t an 850 year old landmark. It made me wonder whether the system produced a lot of false alarms that would make an immediate default response impractical.

pintxo 7y ago
That might be an issue. But then one might not need to send a whole fire brigade from t0. Maybe just send a single truck, or a single car.
- zhte415 7y ago
  This depends where you are, I suppose. Fire Brigades in urban areas typically dispatch two engines that take two different routes to ensure one route is not congested, and at least one engine is on a faster, if not shorter, path than the other. Even real-time route planning cannot mitigate an unexpected cause of congestion yet to occur. Depends on area. Dense urban streets where contagion of fire may require this while a remote home in a rural may mean this route mitigation isn't necesary. However in both and all cases a rapid response is needed as lives are at risk.
throw0101a 7y ago
> Even my home security system calls the fire department by default and my condo isn’t an 850 year old landmark. Non-residential buildings are often charged for false alarms, so standard procedure is to have a human confirm things first: * https://gps-securitygroup.com/the-role-of-security-guard-regarding-fire/ https://gps-securitygroup.com/the-role-of-security-guard-reg... If confirmation is not done in x minutes, there is an automatic call though (with the requisite charge back for false alarms).