Unfortunately they didn't publish the entire thing - which is annoying because the modified version sounds like a pipe dream while the full letter is more detailed. Anyway, here it is in its fullness:
Sherrill Nixon's article about the actual costs of public transport raises some intriguing possibilities.
Since rail costs the consumer half as much as driving cars, perhaps we could countenance the possibility of a completely fee-free public transport system that is funded completely by tax revenue.
Imagine if travelling by rail was free - you simply walk into the station, catch a train and walk off at your stop. No tickets, no cars, no accidents blocking traffic.
A pipe-dream? Well, if it costs us less to have a fee-free rail network than to drive around in cars, then I'm all for it.
What the study has shown is that privatization is not always the answer. Maybe some industries should remain in government hands if it ends up costing us all less. Left-wing politicians take careful note.