Astin said:If they are not driving on the extreme right lane on expressway, I think they have the right to drive at slower speed lah.
There is somewhere in the line that says, driving at speed not befitting the roadcondition. If there are room and limit to go fast and did not, it is causing obstruction. Oh yes, they can say on the left most lane.... not each and every lane as I have experienced.
Guys would remember their roadmarch days in NS or perhaps group cycling. If the front man slowed down, the tail will be crawing.