Great Western Coffee Shop

Some examples from overseas ... or is this first example what the Scotrail 153 conversions for cycles will look like?

https://www.facebook.com/SkodaCycling/photos/a.478342125579947/2257771107637031/

https://www.welovecycling.com/wide/2018/01/18/comfortable-train-travel-bike-japan-solution/

The set up shown in the Facebook photo, wherever it's from, looks pretty good. Easy to use, bikes probably won't fall over and looks as if it should accommodate the majority of bikes and riders, the only probable limitation being tyre width – and if someone's tyres were too wide (some "fat bikes" now have tyres 4" wide or more) they could always put it next to the holder thing (not sure what to call it) rather than in it. Perhaps Sheffield stands (the hoops commonly used for on-street parking) would be more versatile.

The Japanese scheme probably works very well for a Pinarello (the bike shown in the video, which weighs slightly less than the Tour de France winner's yellow jersey and costs a little more than your house) but is going to be a problem for any heavier bike or shorter, weaker, older or disabled person. Also unusable for longer bikes: a friend has a touring bike with typically long back end (the bike's not his!), a typical feature of any bike designed to carry luggage, and it won't fit in the dangly spaces on the IETs, so I dread to think what he'd make of this. It also looks rather close to the doors; I'd worry about passengers' shoulders and clothing getting bruised or oily banging against the bikes.

Pictures of the planned ScotRail  conversions can be found at:
https://www.railmagazine.com/news/network/scotrail-bike-train-plans-take-shape?fbclid=IwAR3vccL-4h5ZaNzYRwWyRyAQAeU8K7Rm94mrOba6Kh11Hxqh0k1fxYvsc28&image=27331 (https://www.railmagazine.com/news/network/scotrail-bike-train-plans-take-shape?fbclid=IwAR3vccL-4h5ZaNzYRwWyRyAQAeU8K7Rm94mrOba6Kh11Hxqh0k1fxYvsc28&image=27331)
and
https://www.scotsman.com/news/transport/scotrail-plans-new-carriages-for-skis-boards-and-bikes-on-snowsports-express-1-4834650 (https://www.scotsman.com/news/transport/scotrail-plans-new-carriages-for-skis-boards-and-bikes-on-snowsports-express-1-4834650)
ScotRail and the Scottish Government expect it will pay its way.