Track fault results in additional travel time

[NSL] CLEARED: Train service from #Yishun to #Bishan is operating normally now.

[NSEW]Update Estimated10 mins additional traveling time from Yishun to Bishan, towards Marina South Pier due to a track fault.

[NSEW] Estimated15 mins additional traveling time from Yishun to Ang Mo Kio, towards Marina South Pier due to a track fault.