Subject 1 Urban Road and expressway Speed Limit Formula

Subject 1: The speed limit formula for urban roads and expressway is as follows:

1. Roads without road center line: 30km per hour for urban roads and 40km per hour for expressway. Roads with only/kloc-0 lanes in the same direction: 50 kilometers per hour for urban roads and 70 kilometers per hour for expressway. Expressway: 60~ 100km/ h on the right side of the second road, the lowest 60km/ h, the left side 100km/ h, the rightmost side of the third road 60~90km/ h, and the middle 90 ~10 km/h; On the far left is the lowest110 km/h.

2. Bad weather speed limit regulations; The speed limit problem depends not only on the road speed limit, but also on the visibility, as follows: (1) Ordinary roads; Rainy days, foggy days, snowy days, sandstorms, hail and other bad weather, visibility within 50 meters; Turn around, turn, and descend a steep slope; Driving on icy and muddy roads; Traction fault car driving; Under the above circumstances, the maximum speed of driving on ordinary roads shall not exceed 30 kilometers per hour.

3. Expressway; If the visibility is less than 50 meters, the maximum speed shall not exceed 20 kilometers per hour. Turn on fog lights, low beam lights, position lights, rear taillights and danger warning lights, and leave from the nearest exit as soon as possible; When the visibility is less than 100 meters, the maximum speed shall not exceed 40 kilometers per hour. Turn on fog lights, low beam lights, position lights, rear taillights and danger warning lights, and keep a distance of more than 40 meters from the vehicle in front;

4. When the visibility is less than 200 meters, the maximum speed shall not exceed 60 kilometers per hour. Turn on fog lights, low beam lights, position lights, rear taillights and danger warning lights, and keep a distance of 100 meters from the vehicle in front.