Likewise, do not know if many know about this a not?
Often still seen many chiong down-slope and do not bother to 'give-way' when there is a STOP-line there.
So just drive with caution and switch on the head-lights when heading upslope.
I second that. Got a few near-miss before. Besides switching on headlights, i highbeam at the wall to make sure vehicle at the other ramp sees the light. A bit troublesome, but i got used to it after a while