Chinese commuters tried out the street-straddling Transit Elevated Bus earlier this year. The "bus" only traveled a few hundred feet, but the test was considered a success.

Critics are skeptical of how the vehicle will navigate the real world. For example, it wouldn't be able to use the bridges and overpasses.

“Even if the ‘elevated bus’ is deployed on ordinary urban roadways, it will need special groundwork, otherwise the roads will be crushed to smithereens before long,” the paper said.

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