If you are cycling from Addenbrooke's to Big Sainsburys on Coldham's Lane/Brooks Road, there is no legal way to go there without going around the Big Frightening Roundabout. As well as the obvious hazards, this must also add several hundred yards to the journey.
Since Sainsbury's now have wonderful cycle parking which is actually near the door (I'd not been there for several years but it's the only place in Cambridge that sell one particular grocery I use regularly so I have to), should we be campaigning to get this fixed. It needs fixing. The whole road layout to get to and from the shop is entirely car-centric, despite the fact that they've now got better bike parking than any other retailer with a similarly sized car park.