you mean that a terrorist isn't going to target the evacuation paths with sarin gas? you do know those evacuation paths are static so when the employee activates the emergency protocols, it's likely going to falsely lead some pedestrians in the direction of the exit of where the gas is. the data you receive on your watch is dynamic and live and can tell you exactly what to do.
also interesting how you ignored the other emergency scenarios that completely destroys your argument.
it sounds like you're stubborn and not willing to admit when you're wrong. feel free to reply i'm not going to read anymore from you. wasting so much time. *sigh*
Nope, I know what I'm taking about. In a mass evacuation, you aren't going to have time to navigate. Your goal to survive is to get out as fast as possible. Subways, and other public spaces, are engineered for specific high-flow evacuation paths and that is the way you need to follow. Modern public spaces use techniques such as staged evacuations, where alarm times are offset, and directional evacuations, where specific guidance signs and paths are activated.
If you pull out your phone like you're thinking in your head, you will be trampled or delayed and die.
Your fundamental problem is you missed that I was talking about the OP's comment about being lost in the wild and won't admit it.