What are the maximum and minimum driving speeds for two, three, and four lanes respectively?

3 Answers
StLondyn
07/29/25 5:45am
Starting from the left, the general speed limit regulations are as follows: First lane: 100-120 km/h (usually dedicated to passenger cars); Second lane: 80-100 km/h; Third lane: 60-100 km/h; Fourth lane: emergency lane. Below is more information about road classifications: 1. Classification perspective: Functional grades are divided into expressways, first-class roads, second-class roads, third-class roads, and fourth-class roads, totaling five grades; Administrative level grades are divided into national roads, provincial roads, and county roads; The classification by speed terms is expressways, fast roads, and ordinary roads, totaling three categories. 2. Road composition: The main components of a road include the roadbed, pavement, bridges, culverts, ferry docks, tunnels, greening, communication, lighting equipment, and other facilities along the route. 3. What is a road: A road refers to a route built according to national technical standards that connects cities, urban and rural areas, villages, and industrial and mining bases, and is approved by the road administration department. It includes expressways, first-class roads, second-class roads, third-class roads, and fourth-class roads, but does not include naturally formed paths in fields or rural areas. It is mainly for motor vehicle use and meets certain technical standards and facilities.
Was this review help?
19
4
Share
LouisLynn
08/12/25 9:17am
After driving for so many years, I often travel on various roads. Two-lane roads are mostly rural paths or narrow city streets, with a maximum speed limit generally set at 60 kilometers per hour. There's no strict minimum speed, but for safety, it's advisable to maintain at least 40 km/h to avoid rear-end collisions. Three-lane roads are slightly wider, like those in urban-rural fringe areas, with a maximum speed of up to 80 km/h and a recommended minimum of 60 km/h to avoid slowing down traffic. Four-lane roads are usually highways or expressways, with a maximum speed limit of 120 km/h and a legal minimum of 60 km/h—driving too slow might attract police attention. I remember once during a road trip, driving too slow on a two-lane road in the rain nearly caused an accident, so minimum speeds should also consider weather conditions; on sunny days, it can be slightly higher. More lanes do make driving smoother, but don't speed—safety comes first. Different road sections may have different signs, so it's best to check maps or navigation alerts in advance.
Was this review help?
7
0
Share
Expand All
LaWyatt
08/12/25 9:18am
As a father of two, safety comes first when driving. On two-lane roads, the speed limit is often 50 to 60 kilometers per hour, with a minimum safe speed of at least 30. Avoid sudden braking to protect the kids. On three-lane roads in suburban areas, the maximum speed can go up to 70 or 80, while maintaining a minimum of around 50 ensures stability. On four-lane highways, the maximum speed is 120, and the minimum must be above 60—going too slow may cause chain collisions. I often observe while driving my kids: fewer lanes mean slower speeds for safety, while more lanes require cautious acceleration, especially in rainy weather—don’t take risks. The key to minimum speed is maintaining distance; on highways, speeds below 60 will trigger warning signs. When traveling with kids, I always remind myself to control the throttle—even on wide roads, don’t forget speed bumps.
Was this review help?
18
1
Share
Expand All
More Forum Discussions

What is the displacement of the Toyota Prado?

The displacement of the Toyota Prado is 2.7L, 3.5L, and 4.0L. Displacement refers to the volume of fluid that an engine can intake or exhaust per stroke or cycle. Taking the 2019 Toyota Prado as an example, it belongs to the mid-to-large SUV category, with body dimensions of: length 4840mm, width 1885mm, height 1890mm, a wheelbase of 2790mm, a fuel tank capacity of 87L, and a curb weight of 2285kg. The 2019 Toyota Prado features a double-wishbone independent front suspension and a four-link non-independent rear suspension. It is equipped with a 3.5L naturally aspirated engine, delivering a maximum horsepower of 280PS, a maximum torque of 365Nm, and a maximum power output of 206kW. It is paired with a 6-speed automatic transmission.
13
0
Share

What Causes a Mercedes-Benz to Fail to Start with All Lights On?

Mercedes-Benz failing to start with all lights on reasons introduction: 1. Insufficient battery power, inadequate fuel pressure, or engine malfunction; 2. Lack of antifreeze, excessive carbon buildup; 3. Starter motor failure, fuel pump supply or injector issues, sensor malfunction; 4. Poor spark plug performance. Taking the Mercedes-Benz GLC 2021 GLC 260 L 4MATIC Dynamic model as an example, the following are the details: 1. Dimensions: It is a mid-size 5-door, 5-seat SUV. The vehicle measures 4764mm in length, 1898mm in width, and 1642mm in height, with a wheelbase of 2973mm. 2. Transmission: Equipped with a 9-speed automatic transmission, the top speed reaches 213 kilometers per hour.
11
2
Share

What Causes Engine Intake Pipe to Have Engine Oil?

Engine intake pipe having engine oil is caused by: 1. Prolonged engine idling; 2. Dirty air filter element; 3. Clogged or deformed crankcase ventilation system; 4. Clogged, leaking, or deformed turbocharger oil inlet and return pipes; 5. Coking of lubricating oil in the turbocharger's intermediate housing; 6. Cylinder wear leading to piston ring blow-by; 7. Excessive flow resistance in the exhaust system. Functions of engine oil: 1. Lubrication between piston and cylinder, main shaft and bearing bush to prevent part wear; 2. Auxiliary cooling; 3. Cleaning carbon deposits and sludge on engine parts; 4. Sealing to prevent leaks; 5. Rust and corrosion prevention; 6. Shock absorption; 7. Anti-wear.
5
1
Share

Why is one side always wider than the other when reversing into a parking space?

Here are the reasons why one side is always wider than the other when reversing into a parking space: 1. Steering too early: When reversing to the right, the wheels will be closer to the corner of the parking space, resulting in a left-wide and right-narrow issue after parking. 2. Steering too late: After reversing into the parking space, the result will be left-narrow and right-wide. Below is extended information about the subject 2 driving test items: 1. Test content: The five test items are reversing into a parking space, parallel parking, stopping and starting on a slope, turning at a right angle, and driving on a curve. 2. Requirements: Subject 2 requires 26 study hours, including 2 hours of theoretical knowledge, so the actual practice time is 24 hours.
17
1
Share

How is liability determined in a rear-end collision?

In the case where the front vehicle is driving normally, if the rear vehicle collides due to excessive speed or lack of concentration, the rear vehicle bears full responsibility for the rear-end collision. If the front vehicle suddenly reverses while on the road, causing a rear-end collision, and the rear vehicle is traveling at high speed, it can easily result in severe damage or fatalities. When the front vehicle stalls suddenly on a slope and fails to engage the handbrake or step on the brake in time, and the rear vehicle is too close, it can easily lead to a rolling rear-end collision. If your vehicle breaks down and is forced to stop on the road, please place a warning triangle behind the vehicle and turn on the hazard lights.
5
5
Share

Why can't the car accelerate beyond 80 km/h?

Possible reasons why the car can't accelerate beyond 80 km/h are as follows: 1. Engine air filter: A faulty air filter can cause poor air intake, leading to a significant drop in power. You can remove the air filter and test the power without it. 2. Fuel filter: A clogged fuel filter can result in poor fuel supply and insufficient fuel pressure at the injectors, causing a noticeable loss of power. 3. Exhaust blockage: Another reason for power loss could be poor exhaust flow. This issue often occurs in winter when the car is driven only short distances (3-5 km) and turned off before the exhaust pipe heats up. Water can accumulate in the exhaust pipe, freeze in cold weather, and gradually form larger ice blocks that eventually block the exhaust pipe, reducing power. If completely blocked, the car may not start. The solution is to heat the exhaust pipe until the ice melts.
15
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.