by SouthernRailway
I rode in a cab car on a Hudson Line train and noticed frequent beeping: usually 2 or 3 series of electronic beeps; sometimes more, but the last series would end quickly. The beeping occurred all along the route, including in Grand Central.
Curious what this is? I was in a Connecticut cab car with doors at each end- Charter Oak, I think.
Thanks.
Curious what this is? I was in a Connecticut cab car with doors at each end- Charter Oak, I think.
Thanks.