SINGAPORE: Bishan MRT station was a picture of chaos on Friday morning (Aug 18). Meandering lines at the taxi stand, warm bodies amassed at the bus stop, the air thick with frustration as irate passengers vented at SMRT staff on the ground and each other. Small wonder. They were facing yet another breakdown in train services - this time, the North-South Line (NSL) that was dogged by signalling faults which started around 6.30am and took about three hours to resolve. At the height of the service disruption, Bishan MRT station was overflowing with a sea of passengers who had tapped out - some after withstanding an hour-long ride from Ang Mo Kio, just one stop away - and others newly arrived and apprised of the situation. With cabs never there when you need them, and Grab and Uber prices soaring, SMRT's free shuttle bus rides - traversing stations along the NSL - were the next best option.