What are the speed limits for the three lanes in urban areas?

[SanRosalie]

The left lane has a speed limit of 120-110 km/h, the middle lane: 110-90 km/h, and the right lane: 90-60 km/h. When specific speed limits are in place, follow the relevant speed limits for highways. Below is an introduction to different types of roads: Expressways: These are roads constructed to handle large volumes of urban traffic smoothly. They feature smooth linear designs and are separated from regular roads to ensure safe, smooth, and comfortable automotive travel. Arterial Roads: These are major traffic routes connecting key parts of a city, forming the backbone of the urban road network, primarily serving transportation needs. Traffic on arterial roads must maintain a certain speed, so the width of the lanes should correspond to traffic volume to allow smooth vehicle movement. The road alignment should be straightforward, with as few intersections as possible to minimize interference from intersecting roads. Traffic control measures should be implemented at intersections, and if traffic exceeds the capacity of a regular intersection, grade-separated interchanges can be planned.