Is an average speed of 30 km/h fast or slow?
2 Answers
Whether an average speed of 30 km/h is fast or slow depends on the road section the vehicle is traveling on. Below are specific introductions to speed limits on different roads: 1. Highways: The maximum speed for small passenger vehicles on highways must not exceed 120 km/h, other motor vehicles must not exceed 100 km/h, and motorcycles must not exceed 80 km/h. For roads with two lanes in the same direction, the minimum speed for the left lane is 100 km/h; for roads with three or more lanes in the same direction, the minimum speed for the leftmost lane is 110 km/h, and the minimum speed for the middle lane is 90 km/h. 2. Urban and rural roads: For roads without a centerline, the speed limit is 30 km/h in urban areas and 40 km/h on rural roads; for roads with a centerline, the speed limit is 50 km/h in urban areas and 70 km/h on rural roads. 3. 30 km/h speed limit: When entering or exiting non-motorized lanes, passing through railway crossings, sharp curves, narrow roads, or narrow bridges; when making U-turns, turning, or descending steep slopes; in fog, rain, snow, dust storms, or hail with visibility under 50 meters; when driving on icy, snowy, or muddy roads; or when towing a malfunctioning motor vehicle.
Personally, I think an average speed of 30 km/h in the city is neither fast nor slow. Having driven for several years, during urban commutes, due to frequent traffic lights, heavy traffic, and pedestrians crossing, 30 km/h is quite common. During my daily rush hour commute, the speed often drops below 30, sometimes even to 20. This speed is safer, with shorter braking distances, reducing the likelihood of accidents. If you can maintain an average of 30, it means the road conditions are decent—not too congested but not fast either. The issue is the high time cost; covering 10 km takes 20 minutes, which is slower than taking the subway. In short, it depends on the environment—for city driving, this speed is fairly reasonable.
