Wide streets in the city

street

This data is reviewed by the project of data compilation and application of Science Encyclopedia of science popularization in China.

street

"Street" and "road" together, refers to the road in the town, and such roads on both sides of continuous housing construction. In the Chinese artistic conception, there are roads in densely populated areas with buildings. Although they are often labeled as "street", "road", "road", "Avenue", no matter what their main functions are, they can be regarded as streets. For roads with good infrastructure and entertainment and leisure functions, even if there are no contiguous building facilities on both sides, they are also considered as streets. However, for ordinary highways and expressways that are mainly used by vehicles, few people will regard them as streets. In the field of planning, the street is also regarded as a negative space in the building enclosure.

brief introduction

street

"Street" and "road" together, refers to the road in the town, and such roads on both sides of continuous housing construction. In the Chinese artistic conception, there are roads in densely populated areas with buildings. Although they are often labeled as "street", "road", "road", "Avenue", no matter what their main functions are, they can be regarded as streets. For roads with good infrastructure and entertainment and leisure functions, even if there are no contiguous building facilities on both sides, they are also considered as streets. However, for ordinary highways and expressways that are mainly used by vehicles, few people will regard them as streets. In the field of planning, the street is also regarded as a negative space in the building enclosure.

road

road

It is the infrastructure for all kinds of trackless vehicles and pedestrians; according to its use characteristics, it can be divided into urban roads, highways, factory and mine roads, forest roads and rural roads, and there were post roads in ancient China.

To some extent, the best way to connect the two places is through a straight line. But in the actual situation, we have to consider the path of the road, the level of road network, the actual topography and the original layout of the city. In addition, the design of the road should mainly consider the width of the road, site, route, maximum traffic volume, driving speed and appropriate turning radius. The road should also guide the traffic to the tunnel and Bridge (in the traffic engineering design, the position of the tunnel and bridge and other structures is better than the local route position of the road, so the road route should adapt to the position of the bridge and culvert tunnel). The width and depth (here refers to the height or depth of the road foundation) should also meet the requirements of the expected traffic flow and the weight of vehicles.

highway

highway

It refers to the road connecting cities, villages and industrial and mining bases, which is mainly used for cars and has certain technical standards and facilities. In Chinese, it can also refer to the road for the public. Highway is mainly composed of subgrade, pavement, bridge, culvert, ferry pier, tunnel, barrier, pavement marking, guardrail, green belt, communication, lighting, traffic signs and other equipment and facilities along the line. It is one of the most important infrastructures in modern society.

expressway

expressway

Generally speaking, it refers to the road with more than two lanes in two directions, separated driving in two directions, fully controlled entrances and exits, all closed and grade separation bridges on both sides, underground tunnels and ramps, and higher speed limit than ordinary highway. It is characterized by fast speed, large traffic volume and high transportation economic and social benefits.