[evgen]

> I've never understood what people mean when they say public transportation is "dirty".

They are forced to share air with obviously poor and non-white people and that is simply intolerable...

One of the biggest adjustments I went through in moving from SF to London was accepting that busses were a viable mode of transit for any time of day. In SF I would crawl over broken glass to avoid having to take a Muni bus while in London my wife and I have taken a bus in dinner jacket and couture dress to an event at a club. There will doubtless be people to chime in with examples of bus systems that are better, but TfL busses are not 'awful and unreliable and slow and dirty and just terrible' by any possible metric.