How many meters is the width of a driveway?

China's standards and specifications mainly consider factors such as "design speed, vehicle type, intersection, reconstruction and expansion conditions", and the width value is generally 2.3 ~ 3.75 meters. The specific application conditions are divided into the following five situations: 1 and 3.75m design conditions, which are suitable for urban expressways, main roads and large mixed lanes, and the design speed is higher than 60 km/h.

The design condition of 2.3.50m is applicable to general roads except expressways in cities, and the design speed of large mixed lanes is lower than 60km/h, or the design speed of small dedicated lanes is higher than 60 km/h; As well as the exit lanes of urban road intersections and large mixed lanes.

3, 3.25 meters design conditions, suitable for small car lanes of urban general roads; Or rebuild the minimum width of the exit lane of the small car lane at the intersection.

The design conditions of 4.3.0m are applicable to the minimum width of small car lanes at the entrance lanes of newly-built intersections, or the minimum width of large hybrid car lanes at the entrance lanes of rebuilt intersections.

The design conditions of 5.2.3-2.8m are applicable to the minimum width when the land for the entrance lane of the intersection is limited.

6. The width of each lane of expressway toll station is 2.5 meters. If necessary, an extra-wide toll lane of more than 3.5 meters must be set to keep the width unobstructed.

Lane width Lane width (also called standard lane width) refers to the width required for a train of vehicles to drive safely and comfortably on the road, including the width of the designed vehicle contour and the extra width necessary for crossing, overtaking or parallel driving.

The state has a standard for the width of each motor vehicle lane, and the width of each motor vehicle lane on multi-lane highways above Grade III is 3.5~3.75 meters. There is no uniform standard for the central isolation belt, so it should be adapted to local conditions. The width of the simple cement central isolation belt is one meter (the distance between the solid white lines on both sides of the central isolation belt). If it is a central green belt, there is no uniform standard for its width, and some "image projects" can be tens of meters wide.

Generally, there are no sidewalks on expressways between towns (usually only when crossing urban sections), and sidewalks must be set on urban main roads. According to the actual traffic situation, the sidewalks of urban main roads are generally at least 3 meters wide and the width can reach 15-20 meters. The first-class highway with a red line of 26 meters is generally like this: two-way six lanes 18 meters, central isolation belt 1 meter, shoulders on both sides 1.5 meters, totaling 3 meters, and the remaining two sides are provided with drainage facilities and other supporting facilities. The 80-meter red line of the main road in a first-class city can generally be divided into: 28 meters for two-way eight lanes (3.5 meters for each motor vehicle lane in the main road of the city), 5 meters for the central green belt, 3 meters for the green belt between motor vehicle lanes and non-motor vehicle lanes on both sides, and 5.5 meters for the non-motor vehicle lanes on both sides, totaling1m, and the remaining 30 meters for the sidewalks on both sides, totaling/kloc-0.