China's latest solution to its notorious traffic and road congestion combines the best features of subways and buses into a single mass-transportation vehicle that rides above traffic rather than in it. Or under it.

Eliminating the need to tunnel underground or build expensive bridges, these elevated buses straddle the road on rails and provide enough clearance for other vehicles on the road (except for large delivery trucks) to drive under. This strategy will allow the buses to travel faster than the speed of traffic without the need for dedicated lanes or structures.

Construction of 115 miles of track will begin in Beijing's Mentougou district.