A Japanese train based on a theme park ride could make getting around cleaner - and more fun.
THE green-and-white door slides shut and a man in a blue cap and beige overalls mutters into his walkie-talkie. He raises a blue-gloved hand to signal departure and we're off. The train's two carriages stutter into motion, trundling along the elevated rails before speeding up as they roll down the gently undulating track. The journey is short, smooth and almost silent - it's a mere 100 metres between "stations".