| 摘要 |
A speed bump for use in connection with a roadway located in a climate where a snow plow is used to clear a roadway, the bump is made from roadway construction materials extending across each lane of a roadway, the bump having a crown of fixed width running substantially the length of the bump; the right-side of the bump having a conventional profile portion, the left-side having a tapered ramp portion having an incline equalling about ten to thirty degrees, allowing a snow plow to lift smoothly over the bump, a plurality of bumps having the same shape can be aligned to manage multiple-lane, one-way and two-way traffic.
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