[Sticw]

My observations as follows:

1) Lots of people lane change without signalling. This is because when they do signal, lots of other drivers do not give way and sped up to close the gap.
2) Lots of bikers actually also do not want to give way when they see cars signalling for lane change. Instead, the bikers will horn and want cars to give in to them. Hence, drivers all ended up not signalling (back to PT 1).
3) Bikers also like to switch between staying in the lane and going between the lanes. Drivers have to look out for them and wonder where these bikers want to do next.

So how? Drivers give way to cyclists, bikers, bus, young and elderlies. Whoever gives way to drivers? Lol

Tough lah...