| 摘要 |
Disclosed is a municipal crossroads structure, wherein a first artery (1) and a second artery (2) form a central platform (3) at an interchange, the first artery (1) is provided with a low tunnel (4) passing underneath the central platform (3), an overpass turning tunnel (5) leads out of the low tunnel (4), and the height of vehicles passing through the two types of tunnel is no less than 2 metres and no more than 3 metres. The first artery (1) is separated by the low tunnel (4) into two surface lanes (7, 8) for travel in opposite directions and can be used by large vehicles, the two surface lanes (7, 8) connect on the central platform (3) to form lanes for turning around (9, 10), and the lanes for turning around (9, 10) are located to the left and right of a straight-on lane of the second artery (2) on the central platform (3). The municipal crossroads structure uses a low tunnel (4), an overpass turning tunnel (5) and a central platform (3) to enable split-flow for small and large vehicles and vehicles travelling in different directions, such that a large volume of small automobiles will meet no resistance when travelling, and traffic is smooth across the whole crossroads. |
