Since you mentioned SLEX... sa dami ng ginagawang expansion dyan and most of them are actually inuna sa EXITS you should know by now that the shoulder is part of the regular road already.

In fact, hindi na sila nanghuhuli from alabang upto the end of the tollway and vise-versa basta't na road construction area. As such you should be in the shoulder na as early as 200-100meters na prior to the exit - ke may nag-oovertake pa dun sa shoulder.

I think it is also a common sense that the driver should be looking at their side view mirrors every few seconds and not only at the last minute na papasok sila sa left or right. I think this is the main reason why nabibigla na lang yung ibang drivers na merun pa lang nasa left or right nila na mabilis na sasakyan.

At the current situation of roadworks in SLEX I would rather rant on the slow drivers that take the fast lane or those that hog the lane...kahit alam na ngang yung half ng inner lane ay "kinain" na ng road works....sa current situation ng kalye dun, common sense na dapat ang pairalin - the road marks/line are no longer true lalo na sa mga construction areas.

just my 2 cents. :peace: