Cycle campaigning

Well, I happen to know that it is being very seriously considered at TfL. The fact that it would take a long time to develop, and cost a bomb, doesn't mean that it isn't an actual infrastructure proposal. You're obviously right that it also indicates a political direction--try to avoid tackling the problem at source and apply avoidance tactics--, but it has to be taken extremely seriously right now. Otherwise, protesting when it's actually being built will be too late.

Don't get me wrong, Oliver; ridiculing this proposal right now is a jolly useful thing to do.

As for the seriousness of the proposal, there has long been a lot of blue-sky (or should that be brown-sky?) thinking in TfL, but much of it ends up in rhetorical landfill. Just as should this example.