The new UK Libertarian Party has a transport section in their manifesto. It’s something of a living document and may change over time, but there are some interesting ideas. This one could be controversial, it’s a bit like what the Australians are trying but perhaps the truckers will be placated by the abolition of income tax:
We will end the indirect subsidy of road freight. This may require retention of a form of distance-based road pricing for HGVs, which in 38-tonne form, do 10,000 times more damage to roads than a 1 tonne car.
I like this bit best:
Motorists and riders should have the right to make their own choices on their use of safety equipment; insurance companies should have the right to charge additional premiums (or decline cover) to those who do.
These parts sound like a good opportunity to properly privatise rail, although I don’t fully understand the current situation (does anybody?)
Disband the cartel of the rolling stock leasing arrangements. Resolve geographic monopoly that is the rail tendering mechanism.