One of the big issues about building a new, high-speed rail network is that compulsory purchase of the land required is electorally unpopular.
Today’s invention is therefore to build a railway within the central reservation of existing motorways.
The ground underneath has already been prepared for heavy road traffic and could easily support a light, ultra-fast railway.
Flyover supports and bridge columns would need to be repositioned but this could be done by inserting a standard sized pipe unit beneath these, big enough to accommodate two of the trains passing side by side.
