Well boyfriend and I investigated those rails last night on the way to somewhere else. They don't look so bad in the flesh, as it were, it looks like there is more space.
Boyfriend says just turn your front wheel towards right angles and then cross them. He says that there is not enough space for a car to pass there, so no car will try to pass and you'll have plenty of room. I admit that it should just be buses and taxis there - but I wish I shared his optimism about no taxi driver ever trying to pass a cyclist through that section...