
A two-way six-lane road consists of six lanes, with a design speed of 40-80 km/h and a subgrade width of over 33 meters. For national highways, provincial roads, and first-class highways, each lane is 3.75 meters wide, and a median divider or green belt must be installed in the middle. When necessary, an extra-wide non-motorized vehicle lane of over 3.5 meters and a sidewalk of over 4 meters must be established. Here is an introduction about lanes: A single lane is divided by double yellow lines from the center of the road, separating right and left traffic, with white dashed lines marking each lane. This means that the road is divided by a green belt or guardrail in the middle, with two motor vehicle lanes and one non-motorized vehicle lane on each side. Generally, motor vehicle lanes and non-motorized vehicle lanes are separated by green belts or guardrails. According to the relevant standards issued by the state, which are also similar to global standards, each lane in urban roads is 3.75 meters wide, diversion lanes at intersections are 2.3-2.5 meters wide per lane, trunk roads including highways have lanes 3.75 meters wide, and the shoulder or emergency stopping lane on highways is 1.5-3.5 meters wide.

A six-lane bidirectional road means there are a total of six lanes on the entire road, but they are divided into two directions, with three lanes in each direction. I often drive on such roads during my daily commute, especially on urban arterial roads or highways. For example, during rush hours in the morning and evening, the six-lane bidirectional design makes traffic flow more smoothly. The three lanes in each direction can be used separately for left-turning, straight-going, and right-turning vehicles, significantly reducing congestion and the risk of accidents. I remember driving on such a road during heavy rain once. Despite the high traffic volume, everyone could maintain a safe distance because there were enough lanes, making the driving experience more reassuring. In short, the total number of lanes is six, with a reasonable structure suitable for high-traffic areas. I think this is a smart aspect of modern road planning.

A six-lane bidirectional road means the thoroughfare has a total of six lanes, with three allocated to each direction. As someone interested in transportation systems, I find this layout highly practical as it efficiently manages traffic flow. In urban planning, six-lane bidirectional roads are commonly seen on ring roads or inter-district connectors, where the three lanes per direction allow flexible lane changes and prevent vehicle congestion. I've observed that during peak hours, this design reduces waiting times and emission pollution while improving travel efficiency. Additionally, the road width is typically moderate, complemented by clear markings, making navigation easier for drivers. While the total of six lanes forms the foundation, details like lane spacing also impact safety. Overall, six-lane bidirectional roads optimize resources and make daily driving more convenient.

A six-lane bidirectional road consists of a total of six lanes, divided into three lanes in each direction. I have driven on many such roads, and this design is quite common in city centers. With three lanes in each direction, traffic flow is effectively dispersed. For example, the leftmost lane is often used for fast-moving vehicles, the middle lane for straight-through traffic, and the right lane for turning or buses. This reduces conflict points, making travel safer and more efficient. In summary, it is a total of six lanes, practical and highly effective.


