The Ministry of Transport’s 1963 Buchanan Report on the future of traffic in towns may have thought of jetpacks and hoverboards as a potentially real future for individual private travel, but it didn’t ignore public transport entirely. Obviously, in 1963 the railways were obsolete, but the report suggested there was some scope for “multi-passenger units”, particularly ultra high speed devices on long journeys between dense population centres.
The most delightful is this fabulous art-deco “tracked hovercraft”. Happy 1960s families, where the women all wear skirts and sit cross-legged and the men all read big important newspapers, drive their car into the bottom deck and sit in airline-style comfort on the upper deck. It’s not clear whether “tracks” in this solution refer to rail tracks or to caterpillar tracks — the diagram appears to show elements that could be interpreted as either. Perhaps it has both, for ultimate flexibility.
The report says:
It is possible, of course, if serious technological studies were undertaken, that a whole range of new ideas for moving people and goods in cities would be produced. It is indeed to be hoped that we are not at the end of our ingenuity in the matter. The bus, for example, for all its convenience, does not appear to be the last word in comfort. The travelator seems to offer much scope for development. Continuously operating chair-lifts might be used in a highly attractive way between points of pedestrian concentration to augment existing means of travel. Conveyor belts, pneumatic tubes, and pipelines might well be developed for the conveyance of goods, perhaps even justifying rearrangement of commercial processes to facilitate their use.
Monorails and moving pavements were the future of public transport in the 1960s — at least while we were waiting for our moon bases and space elevators.
Just some things to bear in mind when you consider the Shenzhen Huashi Future Parking Equipment Company’s (!) dream of the straddling bus:

For those unfamiliar with the city, Shenzhen neighbours Hong Kong; it was a fishing village right into the late 1970s when China created a “special economic zone” encouraging market capitalism here. The city now has a population estimated to be 14 million squeezed into the limits of the SEZ, and is one of the fastest growing cities in the world. It’s an entirely new city, conceived late in the motorcar era, and full of the wide boulevards you would expect in modern car dependent Chinese cities.
Shenzhen is the future. At least, it must feel that way to the people who live there. The Chinese are in the middle of great change: social progress, economic development, and technological revolution. This is their 1960s, and more. They’re putting men into space to prepare the way for the space elevators.
They’re also struggling with the sort of problems that European cities were struggling with the the 1960s. In the picture above you can see how this little city street is too narrow to accommodate conventional buses. Conventional buses keep stopping and starting, and this causes congestion as Important People in cars have to slow down and move over into one of the other four lanes available to them. Therefore there is a need to invent the straddling bus, which will not impair Important Motor Traffic — those SUVs and executive saloon cars can happily drive under it (albeit, only having been considerably shrunk in photoshop).
It’s a genuinely clever idea. You might wonder whether they’ve considered safety, and turning cars, and height clearance. Of course they have. The engineers have thought of everything and there’s no reason why it shouldn’t work in Shenzhen. Just as there was no reason why hovertrains and moving pavements shouldn’t work…