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"Straddle bus" public transportation system workable: inventor

09-02-2010 11:22 BJT

BEIJING, Sept. 1 (Xinhua) -- The "straddle bus," a newly-developed vehicle that may reduce traffic jams by about 30 percent and is less costly than urban subway system has theoretically proved workable, its designer said Wednesday.

Photo shows the "straddle bus," a newly-developed vehicle that
may reduce traffic jams by about 30 percent and is less costly
than urban subway system.(Photo:

A work group led by Professor Zhang Jianwu from the School of Mechanical Engineering at Shanghai Jiao Tong University conducted the research that proved it could work, said Song Youzhou, the vehicle's inventor and chairman of the Shenzhen Huashi Future Parking Equipment Company (SHFPE).

The "straddle bus" spans two of traffic lanes and sits at a height of 4.5 meters. It will be used on major roads in cities and may reduce road traffic by 20 to 30 percent, according to Song.

The bus will run along special tracks and will sit on a pair of stilts so ordinary cars can pass underneath it. It could carry up to 1,400 passengers and it could travel as fast as 60 to 80 kilometers per hour.

The cost of manufacturing the bus and building the road facilities is 50 million yuan (7.34 million U.S.dollars) per kilometer, about one tenth the cost of building a subway line of the same length.

The time it would take to build its tracks is three times less than that of a subway.

The product is estimated to have a market value of over 1 trillion yuan and may serve as a substitute for subway and bus systems, according to the inventor.

The emission-free vehicle will run on 700 volts of electricity supplied at stops and overpasses through solar energy.

Blueprints for the vehicle have been forwarded to a combustion engine manufacturer in Changzhou City, Jiangsu Province, and a rail wagon producer in Shijiazhuang City, Hebei Province.

Both manufacturers are branches of the China South Locomotive & Rolling Stock Corporation Limited (CSR), a state-owned manufacturer of electric locomotives.

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