How is vehicle speed expressed in code?

1 Answers
StSebastian
07/29/25 12:56pm
Most domestic vehicles use KM/H as the unit on their speedometers. Simply put, it displays the speed at which the car is moving. For example, if the speedometer needle points to 60, it means the car can travel 60 kilometers in one hour at its current speed. Below are precautions for driving on highways: 1. Drive in designated lanes: Highways have clearly marked lanes for large vehicles, small vehicles, etc. When overtaking, once you occupy a lane, return to your appropriate lane promptly after completing the overtaking maneuver, and avoid occupying other lanes for extended periods. Additionally, emergency lanes should not be occupied for long without special reasons. 2. Maintain a safe speed and avoid speeding: The dangers of speeding are well-known, causing irreparable consequences both locally and on highways. 3. Maintain a safe longitudinal distance between vehicles: Generally, on dry roads with good braking conditions, the distance between vehicles (in meters) should not be less than the speed (in km/h). For example, at 80 km/h, maintain at least 80 meters; at 100 km/h, maintain at least 100 meters. Always pay attention to roadside distance markers. In rainy, foggy, snowy, or wet road conditions, double the distance. 4. Observe traffic signs: Always watch for roadside and overhead signs and markings, and drive slightly to the right to avoid running over the right lane divider, providing enough lateral space for overtaking vehicles. 5. Do not arbitrarily occupy emergency lanes during accidents: Traffic incidents are inevitable on highways. If other vehicles cause an accident blocking the lane, do not occupy the emergency lane, preventing rescue vehicles from accessing the scene. 6. Avoid fatigue driving and take timely breaks: Fatigue driving is extremely dangerous on highways. When fatigued, reaction times slow, making it difficult to respond correctly to sudden situations.
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