| 摘要 |
<p>Disclosed is an interchange structure for a main artery and a sub-arterial road in a municipal crossroads, comprising a main artery (1) and a sub-arterial road (2) of a crossroad interchange, wherein the main artery (1) and the sub-arterial road (2) are two-way roads. The location of the interchange between the sub-arterial road (2) and the main artery (1) is a low tunnel (3), the height of vehicles able to pass through the low tunnel (3) being no less than 2 metres and no more than 3 metres. Prior to the main artery (1) and the sub-arterial road (2) reaching the low tunnel (3), the two roads respectively have a lane (4, 6) for turning onto the sub-arterial road (2) and the main artery (1), and a special lane for vehicles turning around (5) is provided on the main artery (1) at the two sides of the low tunnel (3). The interchange structure is easily constructed and enables smooth driving.</p> |
