What is the maximum speed allowed with a visibility of 30 meters?

1 Answers
Davis
07/24/25 2:59pm
With a visibility of 30 meters, the speed should not exceed 20 kilometers per hour. Below is an introduction about visibility: Introduction: Visibility refers to the maximum distance at which a person with normal vision can distinguish an object from its background. Environmental Impact: In exceptionally clear air conditions, such as in the Arctic or mountainous areas, visibility can reach 70 to 100 kilometers. However, visibility is usually reduced due to atmospheric pollution and humidity. During atmospheric pollution events, aerosol pollutants like dust, smoke droplets, fog, falling dust, floating dust, and suspended particles can affect the atmospheric extinction coefficient and visibility to some extent.
Was this review help?
11
2
Share
More Forum Discussions

What is the difference between synthetic and full synthetic engine oil?

There are differences between synthetic and full synthetic engine oil in terms of composition, performance characteristics, and replacement intervals. Different composition: Full synthetic engine oil contains 100% non-conventional, high-performance fluids. In contrast, semi-synthetic engine oil (also known as "blended oil") has a lower percentage of these high-performance fluids and contains conventional mineral engine oil. Different performance characteristics: In terms of overall performance, full synthetic engine oil is superior to semi-synthetic engine oil. Whether it's lubrication performance, oxidation resistance, corrosion resistance, etc., full synthetic engine oil has a slight edge, meaning it has better high and low-temperature performance and can adapt to harsher driving conditions. Different replacement intervals: The replacement interval for full synthetic engine oil is 10,000 kilometers or within one year, while for semi-synthetic engine oil, it is 7,000 kilometers or within 6-8 months. However, the exact timing should be determined based on actual conditions.
12
4
Share

Which country does Cadillac belong to?

Cadillac is an American automobile brand. Originally named the Detroit Automobile Company, it served as the predecessor to the Cadillac division of General Motors. The brand was founded by Henry Martyn Leland and primarily focused on small vehicles. Cadillac represents the highest quality and image of luxury vehicles within the General Motors portfolio. Cadillac was born in 1902 in Detroit, known as the Motor City of America. Although the 1994 models were identical in appearance to the previous year's versions, significant performance improvements were made; the engine featured an EFI system, exhaust pipes were upgraded to dual pipes, and horsepower was increased to 280. General Motors was established on September 16, 1908, with its headquarters located in Detroit, Michigan, USA. The company was founded by William C. Durant. Its brand portfolio includes Buick, Chevrolet, Cadillac, Wuling, Baojun, and others.
5
4
Share

What type of fuel should a Golf 1.2T use?

The Golf 1.2T should use 95-octane gasoline. Below are some relevant details about refueling: 1. Try to avoid refueling immediately after the gas station has just unloaded fuel. The bottom of the fuel tank always contains some amount of water and sediment, which can be stirred up and mixed with the fuel during unloading. 2. If you accidentally fill up with fuel containing water or impurities, it can clog the fuel lines and damage the vehicle's engine. Gas stations typically wait at least half an hour after unloading before allowing refueling, so don't rush to refuel. If you're in a hurry, you can look for another nearby gas station. 3. Besides timely refueling, it's also important not to overfill the tank. Fill it appropriately, as an overly full tank can excessively damage the fuel float and sensor. Additionally, an overfilled tank increases the risk of fuel splashing out while driving, and spilled gasoline can corrode the car's paint.
8
2
Share

What does the Volkswagen OFF button mean?

OFF is the button to deactivate the Vehicle Stability Control (VSC) system. This system is enabled by default, and can be turned off by long-pressing this button. Below are detailed explanations about the Vehicle Stability Control system: 1. The Vehicle Stability Control system is an active safety system developed by Toyota, which significantly improves vehicle handling safety and driving convenience. 2. The Vehicle Stability Control system, also known as the Anti-Skid Control System, includes ABS and ASR, and can prevent wheels from locking during braking (ABS) and slipping during acceleration (ASR). 3. The Vehicle Stability Control system works when the vehicle is making sharp turns, evading, or avoiding suddenly appearing cars or animals. When understeer causes the vehicle to slide outward, or oversteer causes the vehicle to cross the centerline of the road or even spin in place, the system uses computer control to adjust engine output and apply braking to any wheel to eliminate understeer or oversteer, thereby improving dynamic stability during driving.
14
1
Share

How Many Years Do You Need to Complete the Driver's License Test?

You need to complete the driver's license test within 3 years. Here is an introduction to how many years you need to complete the driver's license test: 1. Process: After passing the subject one test, the vehicle management office will issue a driving skill test permit to the student, who can then participate in the training and tests for subject two and subject three based on this permit. Originally, the driving skill test permit was valid for 2 years. After the implementation of the new regulations for the driver's license test in 2013, to give students more sufficient time to participate in driving training and tests, Order No. 123 stipulates that the validity period of the driving test permit is extended to 3 years. 2. Validity Period: After the implementation of Order No. 123, adhering to the principles of leniency and convenience for the people, the driving skill test permits obtained before January 1, 2013, and still valid after January 1, 2013, had their validity period adjusted from 2 years to 3 years.
13
1
Share

What does the number of compartments in a car mean?

Car compartments refer to the body type of the vehicle, commonly including two-compartment (hatchback) and three-compartment (sedan) cars. Structurally, if the engine compartment, passenger compartment, and trunk are all separated and this separation is fixed and irreversible, then it is a three-compartment car. A two-compartment car refers to a body with a luggage compartment that does not protrude from the vehicle body. In this case, the passenger compartment and luggage compartment are actually integrated, only separated by the rear seats or similar structures. This layout increases interior space but reduces trunk space accordingly. Therefore, it is mostly used in small and compact cars. A three-compartment car refers to a vehicle whose body structure consists of three separate compartments with different purposes: the front engine compartment, the middle passenger compartment, and the rear trunk. In summary, the main difference between two-compartment and three-compartment cars lies in the presence of a protruding trunk. If there is one, it is a three-compartment car; if not, it is a two-compartment car. In terms of usage, most two-compartment cars on the market are shorter than three-compartment cars, more flexible, and occupy less space.
2
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.