Beijing's targets don't look very impressive to me, Central London has long done
much better in terms of modal share -- but still suffers traffic problems.
Maybe the figures would be more meaningful if journeys made by non-motorised
transport were taken out. While bicycles may be less pervasive than they used to
be, I presume they still account for a substantial proportion of journeys. In a
dense metropolitan area there is little benefit from transferring these journeys
to public transport, but also little harm as long as there is spare capacity.