Berlin plans to introduce a driverless magnetic train to improve green credentials and reduce car usage.
Advantages include no need for drivers, easier construction, and potential to persuade people to take trains.
Environmentalists criticize high cost, energy consumption, and prefer funds to expand existing infrastructure.
Project aims to revive 1980s M-Bahn magnetic railway, but faces funding concerns and opposition from environmentalists.
Various countries, including France, America, and England, have contributed to the development of magnetic levitation rail.
Future of project uncertain due to recent court ruling blocking fund allocation.