| 摘要 |
A traffic control system for converting an intersection into a roundabout during periods of heavy traffic includes a mechanism for monitoring traffic flow through the intersection and about the roundabout. The system also includes a concave opening in and around the intersection and a concrete disc disposed in the cavity, a hydraulic lift is constructed and arranged to elevate the concrete disc above the level of the road and lights provided to alert motor vehicles to enter a roundabout defined by the elevated disc. The system also includes traffic lights for alerting a motor vehicle operator to drive onto the disc or around the disc to use the intersection and/or roundabout.
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