This applies to video games, driving sims, and exercise bicycles with large displays which keep you amused while exercising.
Old idea, not what I'm claiming: you have an exercise bike hooked up to a big screen, showing a drive through the country, tour de france track, whatever... as you speed up
and slow down, so does your virtual drive through the countryside. (the display is a movie of a
real place - not a computer simulation)
Problem with this is that the only control you have is speeding up and slowing down. You can't really go left or right, which to my mind takes out most of the fun and certainly shatters the illusion.
My solution: when filming the route, use a long horizontal boom fitted with multiple cameras (say every 3 inches apart, and as wide as the road). Then as you go left or right, switch the camera track to the appropriate recording.
(addendum: by 'go left or right' I didn't mean turn off on another path, I simply meant adjusting your position in the road, for instance to overtake another cyclist. Though just to confuse the issue, although this technique allows for filming a real scene, if there is any traffic in the scene it has to be simulated! (Two big reasons why... left as an exercise to the reader) Still, it's more convincing to simulate a few cyclists or cars in a real scene than it is to simulate life-like scenery as well...)
By the way, the multiple cameras have an unexpected side-effect benefit; if you have a 3D (stereo) display, you don't need anything extra - just use two adjacent cameras from the array instead of one. (Hence why you need spacing between them that matches the eye separation)
Large arrays of cameras already exist for various Matrix-like special effects. This would be a re-use of the same technology.