| 摘要 |
<p>The invention relates to a road preparing system. The system includes a road preparing control system and a preparing zone in which the control system is set . The road preparing control system includes a main controller and external bus, the preparing zone is set on the road surface of a city crossing. There are signal lights which can indicate roadways in the preparing zone, the main controller is connected with the signal lights by the external bus. The invention also relates to a roadway control light. The light includes a external housing, light holder and light surface, wherein the external housing is connected with the light holder, the light surface is in the external housing. There are light emitting units in the light surface. The said light surface displays at least one of phase signs, which are left turning , straight going and right turning, respectively, according to a predetermined time program. Each said phase sign can display different work states with three colours, that is red, yellow and green, respectively.</p> |
