What are the minimum and maximum speed limits for the leftmost lane?

[LincolnLynn]

The speed limits for the leftmost lane are divided into the following two scenarios: 1. Ordinary roads: (1) Urban roads with a single centerline have a maximum speed limit of 50km/h, while roads with a single centerline have a maximum speed limit of 70km/h. (2) In the following special situations, the maximum speed limit is 30km/h: when encountering fog, rain, snow, sandstorms, or hail with visibility within 50 meters; when driving on icy, snowy, or muddy roads; when making U-turns, turning, on narrow roads, narrow bridges, steep descents, entering or exiting non-motorized lanes, or passing through railway crossings; when towing a malfunctioning motor vehicle. 2. Highways: (1) For two lanes in the same direction, the leftmost lane has a minimum speed limit of 100km/h. (2) For three lanes in the same direction, the leftmost lane has a minimum speed limit of 110km/h, the middle lane has a minimum speed limit of 90km/h, and the rightmost lane has a minimum speed limit of 60km/h.