
There is no unified regulation, as speed limits vary across different highways. Even on the same highway, speed limits may differ in different sections. Starting from the left lane, the general speed limits are as follows: First lane: 100-120 km/h (usually reserved for passenger cars); Second lane: 80-100 km/h; Third lane: 60-100 km/h. Here are other regulations: Drive according to the regulations: The national speed limit does not exceed 120 km/h, but highways may set special speed limits based on specific conditions, such as posting speed limit signs indicating 110, 100, or 90 km/h. In such cases, drivers must adhere to the posted speed limits. Drive according to the lane-specific speed requirements: On highways, the maximum speed for small passenger vehicles must not exceed 120 km/h, while 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. If the speed limit indicated by road signs differs from the above lane-specific speed requirements, drivers must follow the speed limit indicated by the road signs.

The appropriate speed on highways depends on specific road and vehicle conditions. I usually maintain a cruising speed between 110 and 120 km/h, which helps avoid speeding while being relatively fuel-efficient. On sections with numerous curves or heavy traffic, I reduce to around 100 km/h. In fact, excessive speed is particularly dangerous - braking distance increases by dozens of meters beyond 140 km/h, and tire pressure surges dramatically. It's also crucial to monitor speed limit alerts on navigation systems, as special limits may apply in tunnels and bridges where unintentional speeding could occur. With today's dense network of speed cameras, exceeding the limit by just 10% may result in fines, making reckless speeding completely unnecessary.

I've noticed many people confuse kilometers and miles. The speed limit signs on domestic highways are all in kilometers, so a 120 km/h limit is roughly equivalent to 75 mph. What scares me most on highways are those who speed up to 140 km/h while constantly changing lanes—such drivers simply can't brake in time in emergencies. Actually, maintaining 110-120 km/h is most comfortable when traffic is light, with stable steering and minimal wind noise. If driving a low-displacement car with weak power that tends to lose speed uphill, it's advisable to stay in the right lane at around 100 km/h. When carrying elderly or children, controlling speed is even more crucial, as sudden braking can easily cause motion sickness. In rainy or foggy conditions, I usually reduce speed by 20%—safety first.

To be honest, I was really nervous driving on the highway when I first got my license. Now I understand that maintaining a reasonable distance is more important than speed. When I see a car approaching in the rearview mirror, I change lanes in advance to give way. Experience tells me that fuel consumption skyrockets when the speed exceeds 130 km/h. A small car consumes 30% more fuel at 140 km/h than at 110 km/h. The most economical speed is 90-100 km/h, but driving too slow affects traffic efficiency. Nowadays, navigation systems provide real-time speed limit prompts, which makes driving much easier. The key is to keep an eye on the dashboard to avoid speeding, as many cameras are hidden behind green belts.


