Retailer WH Smith has struck a deal to double the size of its burgeoning international travel business by snapping up a US ai. Apr 18, 2017. 2017 European Railway Performance Index – Rail and Travel Hubs. for data used in this year's RPI is the International Union of Railways. Deutsche Bahn. Booking trains across Europe Compare train travel with flights Scenic train routes. Top Three International Routes that are Faster…