Germany’s 9 euro ticket did not take (enough) cars off the road
▻https://www.railtech.com/all/2022/08/09/germanys-9-euro-ticket-did-not-take-enough-cars-off-the-road
And while data did show a major increase in the number travellers on regional railway lines, preliminary research also shows that people have not shifted to rail from the road. It means that the 9 euro ticket might not have the desired climate impact.