The Astra Zeneca developers (I assume) have installed a chicane made from two plastic roadwork blocks, plus a little "Chicane Ahead" warning sign on the down slope of the guided busway path as it approaches Francis Crick Avenue.

I assume that the idea is to slow down cyclists, but I don't see why this is any more necessary than it was before their building site was created. I think it will make collisions between cyclists, or between cyclists and pedestrians, more likely.