However, there is a limit to the capacity you can get from such a bus
service without more infrastructure (at very high frequencies, buses
will need to be able to overtake each other easily). Longer vehicles
will be needed (longer than the current bendy buses) - and that brings
us right back to trams or tram-like technology (e.g. optically-guided
multi-articulated buses).

As a daily user of the 207 or 607 route, I am obviously supportive of
the tram. However I have been surprised, when talking to people, about
the strength of local opposition. Moreover, the more I use the route,
the more I feel that some quite cheap measures (a few more bus lanes,
some prioritisation at lights, better management of the driving
schedules) could be put in place within 12 months to really speed up
the bus routes on the Uxbridge Road. I would suggest that the project
should be put on hold for 18 months while some other measures are
tried.

I have read again and again about the impossibility of putting more
buses on this route and I simply do not believe it to be true.