I stay near there, it depends on which particular stretch of road you are referring to. If youre talking about the stretch just before one turn into Aye, then i guess its because there is a big divider down there splitting up the direction between going to aye and west coast road. There is also a merging lane coming out from the JTC buildings along that stretch, so you can see it gets pretty complicated during peak hour.
But back to the thread, the traffic is not that bad at 653am in the morning, so i believe its just a issue of overlooking safety concerns.
Cheers and have a good week ahead