In the past 10 years, Shanghai has built a number of road infrastructures, such as subways, elevated roads, bridges and tunnels. A modern transportation network with "applied" elevated roads, "cross-and-a-half-ring" track lines and "three vertical and three horizontal" river-crossing projects as the main lines has been initially formed in the central city, but people feel that it is actually more and more roads being built and more blocked. In recent years, Shanghai will invest 50 billion yuan to build more ramps on the inner ring elevated road, widen the ground transportation hub, build new cross-river tunnels and the Central Ring Road, alleviate the fundamental congestion of urban roads, and at the same time vigorously develop its intelligent transportation system. But will the congestion that people are worried about become the continuation of history tomorrow? In the past 10 years, Shanghai has built many road infrastructures, such as subways, elevated roads, river-crossing bridges, river-crossing tunnels and so on. A modern transportation network with Shen-shaped elevated roads, cross-shaped semi-circular rail transit lines, three vertical and three horizontal trunk roads and river-crossing projects as the main body has initially taken shape. However, the public feels that there are more roads and more cars. In recent years, Shanghai will invest 50 billion yuan to add inner ring ramps on elevated roads, widen the main roads on the ground, build new cross-river tunnels and Central Road, fundamentally ease the road congestion in the central city, and at the same time vigorously develop intelligent transportation systems. But people are worried about whether tomorrow's congestion will continue in history.