Initial plans to develop a lane-spanning bus in China were met with great enthusiasm but some skepticism, the latter of which is now being addressed via a real-life, full-sized prototype.

The idea is simple: a bus that arches over traffic is neither hinders nor is hindered by other vehicles on the road. Its mass and reduced need to start and stop also make the bus more sustainable than most transit options in terms of energy efficiency as well.

The mega-vehicle is spacious and vast, 72 feet long, 25 feet wide and 16 feet tall. With seven feet of clearance, leaves plenty of room below for ordinary road vehicles.

The bus runs on specialized tracks on either side of two-lane traffic roadways and can carry up to 300 passengers at top speeds of up to 60 miles per hour.

Since the concept has been demonstrated, countries including Brazil, France, India and Indonesia have expressed interest in the TEB-1 system, hoping to deploy it on their own congested urban roadways.

Fathoms beyond traditional boat taxis, this modular water bus proposal for Stockholm bridges critical gaps within the current public transit system while also making boarding faster and transfers easier.

Developed by the KTH Royal Institute of Technology’s Department of Aeronautical and Vehicle Engineering, the Waterway 365 project fills in transportation voids, in part by taking the quickest and most direct routes possible across the water. Featuring wide back and side exits as well as, the solution is also bike-friendly for rapid boarding and disembarking. Adding versatility to the design, modular detachable sections make the approach more adaptable to different passenger volumes.

These water buses are also designed to run year-round, operating through winter freezes. To save materials and energy, the designers eschewed steel reinforced hulls in favor of lighter metal. The resulting vehicles are structured to handle some ice but are ultimately to be paired with ice-breaking plow boats as needed in extreme conditions. Initially envisioned for the country’s biggest city, the idea is to deploy these to bridge other urban waterways around Sweden as well.

From the design study: “A city comprised of islands, Stockholm seems a natural for the concept of water transit. Door-to-door travel time on at least one typical trip across town, the study shows, could potentially be reduced by one-third.” Connecting essential nodes, the idea is to reduce congestion as well as energy consumption in the long run.

Water-based public transit already exists in many places, including the canals of Venice, but generally utilizes either flat-style ferries or streamlined boats. These approaches represent two extremes that this new water bus design aims to navigate between – the ease of getting on and off, on the one hand, versus speed and handling of the vehicle on the other.