Well, when I see state transport buses or trucks following an another vehicle I become alert because they can change lane any time to overtake the vehicle. While these vehicles are moving alone then generally they change the lane slowly and hence we get the time to brake.
The case mentioned is experienced by me too a couple of times, what the driver does is he gives hand indicator and changes the lane, sometimes without giving hand indicator too and we have to just press the middle pedal hard.
Rest many times car drivers also irritate these bus and truck drivers by not following their hand indicators and then they have to forcefully enter the lane suddenly. I have seen it many times, the bus or truck driver keeps on indicating but car drivers don't bother to slow down and let them change the lane, they just honk and try to squeeze from the space left. In these cases too, the bus and truck drivers do such acts as mentioned.
Hehe, we both are of same age group and I know how it happens that speed builds up. First you decide you won't cross 100 and then you think, 120 is okay and then you feel like let me see how it's driving on 140 and then you think 'road is empty, let me see 150' and once this mark is reached then thought comes "Yaar, let me see how quick this machine can go".
The speed you mentioned is normal for any car above 5-6 lac and people do them regularly, but yes..on the empty roads people change the lanes slowly, I guess in slow lane changes we can easily stop the person by honking.
Rest a free advise is that "You must avoid
hard braking at high speeds, instead use steering wheel with uniform braking".
There are thousands of such examples where people don't use the ORVMs and cause accidents too and then blame the car coming from behind saying "I was driving slowly, he came and banged me from behind".