How to make the rail ticketing aspects of the European Commission's Passenger Package more workable

In my earlier piece, I argued that the European Commission's Passenger Package is both radical and unworkable when it comes to the rail aspects of it, and explained how the Commission ended up there.In this piece I will start to sketch out some possible fixes - to make it more workable. The proposals are subject to the Ordinary Legislative Procedure in the EU, meaning both European Parliament and Council will be able to propose amendments to it all.You can find all the background about the package, and the three legislative proposals, here. There are also even more detailed fixes from European Rail Passengers Union here, that ought to be read in conjunction with this piece of mine.At the heart of the rail part of proposals is the concept of a "single ticket" - this is a railway ticket that combines legs of a trip that are operated by different train companies.Let's say you want to go from Frankfurt to Barcelona via Strasbourg and Lyon. At the moment you would have three tickets - one…