Transit Explore Bus Concept, 2016. A Beijing-based company has revealed a scale model of a road-straddling ‘Land Airbus’ that allows traffic to pass underneath it, ahead of a full-scale trial commencing later this year. The futuristic train-like ‘bus’ sits above two lanes of traffic, allowing other vehicles to pass underneath it. Riding on rails fitted on each side of the road, the Land Airbus concept can carry around 1400 people – around the same as 40 conventional buses