The train stopped like what it did when approaching a normal
station.
no not that. there are a lot more possibilities:
1. e-brake to 0, then immediately accelerate again
2. e-brake to 18, then accelerate again to 39 or below
3. brake to between 18-39 (CM) and/or inconsistent braking and
acceleration
each type can have multiple reasons too. type 1 is usually due to
lightning or speed limit exceeded, which requires OCC to reset and
grant movement immediately.
type 2 is usually due to speed code limitations.
type 3 is usually due to CM mode.
there is yellow warning light out of braddell today by the way, so
I believe it is due to renovations at Bishan platform. you might
want to alight at Braddell and see what it says.