fix the alarms? I only had one false fire alarm in my life. and thankfully zero real ones. it's possible.
do fire drills? if alarms get ignored, and you can't reduce the false-positive rate, then introduce fake alarms and monitor the response?
(...on track)
If ignoring an alarm and keeping it on track "counts" as having kept things on track, there's the perverse incentive. Change incentive to mean a train kept on track after ignoring an false alarm was worse than a late train.
Now the company is as focused, or more, on fixing the bad alarms, than keeping trains on time.
Finding incorrect incentives is usually not that hard.