What does a two-way two-lane road mean?
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A two-way two-lane road features a yellow dashed centerline to separate opposing traffic flows. This line is typically marked along the center of the roadway but is not strictly limited to the geometric center. Under safe conditions, vehicles are permitted to cross this line or make left turns. Below is an introduction to lane types: 1. Single lane: Divided by double yellow lines in the middle of the road, separating right and left traffic flows, with white dashed lines marking individual lanes. 2. Separation by green belts or guardrails: Typically consists of two motor vehicle lanes and one non-motorized lane on each side, separated by green belts or guardrails. 3. According to national standards, which are similar to global standards, urban road lanes are 3.75 meters wide, intersection diversion lanes are 2.3-2.5 meters wide, trunk roads (including highways) have lanes 3.75 meters wide, and shoulders (emergency stopping lanes on highways) are 1.5-3.5 meters wide.