What is the best method to judge the distance between vehicles?

2 Answers
LaBeau
07/24/25 5:30pm
Methods for judging the distance between vehicles are as follows: 1. Determine the distance of the rear vehicle to assess whether a lane change is possible. Observe how far the vehicle in the adjacent lane is located behind the side of your vehicle, typically using the side rearview mirrors. When using the rearview mirror to judge the distance, first adjust the vehicle seat and the angle of the rearview mirror. If the body of the rear vehicle has entered the danger zone to the left of the dotted line in the rearview mirror, it indicates that the distance between the vehicles is very close, and turning should not be attempted at this time. 2. Since the driver is positioned on the left side of the vehicle, it is more challenging to gauge the situation in the right lane. Moreover, the blind spot in the left side rearview mirror is larger than that on the right. If the rear vehicle occupies half of the rearview mirror's area and only half of its body is visible, it means the rear vehicle is very close to your car. In this case, you should maintain your current lane and avoid changing lanes.
Was this review help?
15
1
Share
TuckerLee
08/11/25 9:39am
I remember when I first started driving, judging the distance between cars always felt quite challenging. My usual method was to observe through the rearview mirror: if the car behind occupied about half of the mirror's surface, the distance was roughly ten meters, and if it appeared smaller, it meant the car was farther away. When parking, I also liked to use roadside references, such as aligning the front of my car with the parking line ahead. With more practice, I found that my sense of distance naturally improved, especially by focusing on a point to see if it was getting closer. While driving, it's important not to follow too closely and maintain at least a three-second braking distance to avoid rear-end collisions. These methods, though simple, are quite effective and have helped me stay safe on numerous occasions.
Was this review help?
16
3
Share
Expand All
More Forum Discussions

What to Do When the Steering Column Lock Malfunction Prevents the Car from Starting?

Steering column lock malfunction prevents the car from starting? Here are the solutions: 1. Insert the key into the ignition; 2. While gently shaking the steering wheel, turn the key. The function of the steering wheel is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft to change the direction of the vehicle. Steering wheels are categorized into: single-spoke, dual-spoke, three-spoke, and four-spoke designs. Precautions for using the steering wheel include: 1. Avoid applying excessive force when turning the steering wheel and refrain from making abrupt turns; do not turn the steering wheel when the vehicle is stationary. 2. When driving on bumpy roads, hold the steering wheel firmly with both hands to prevent loss of control and potential accidents. 3. Reduce speed when making turns. 4. Gradually turn the steering wheel according to the curvature of the bend when entering a curve.
5
3
Share

What is the actual fuel consumption of the BJ30?

The actual fuel consumption of the BJ30 is 7.1 to 8 liters per 100 kilometers, which belongs to the compact SUV category. Taking the 2021 BJ30 as an example, its body dimensions are: length 4505mm, width 1855mm, height 1710mm, wheelbase 2675mm, fuel tank capacity 60 liters, and curb weight 1520kg. The 2021 BJ30 features a MacPherson independent front suspension and a multi-link independent rear suspension. It is equipped with a 1.5T turbocharged engine, delivering a maximum horsepower of 156PS, maximum power of 115kW, and maximum torque of 230Nm, paired with a 6-speed automatic transmission.
19
4
Share

Is a Motorcycle License the Same as a Car License?

Motorcycle licenses and car licenses are not the same. Here is an introduction to motorcycle licenses: 1. Basic Introduction: Motorcycle licenses are divided into D and E classes. A D license covers ordinary three-wheeled motorcycles and includes the E class, while an E license is for ordinary two-wheeled motorcycles. If you hold a C1 driver's license and want to ride a motorcycle, it is best to upgrade to a D or E license, which allows you to legally ride a motorcycle on the road. 2. Exam Content: The first subject is a theoretical test consisting of 50 questions with a full score of 100; a passing score is 90 or above. Subjects two and three are taken together, with test items typically including stake tests, slope parking and starting, and crossing a single-plank bridge, all supervised by police and examiners.
8
3
Share

What is the fuel tank capacity of the Changan Unit?

The 2022 Changan Unit models all have a fuel tank capacity of 55 liters. The entire lineup is equipped with either a 1.5-liter or 2.0-liter turbocharged engine, paired with a 7-speed wet dual-clutch transmission (DCT) or an 8-speed automatic transmission (AT). All models feature front-wheel drive. In the same vehicle class, the 2021 Haval Big Dog has a fuel tank capacity of 61 liters, the 2022 Changan CS75 PLUS has a 58-liter tank, and the 2021 Beijing Hyundai ix35 also has a 58-liter tank. During actual refueling, the amount of fuel may exceed the calibrated capacity. This is because the manufacturer's specified fuel tank capacity is measured from the bottom of the tank to the safety limit, with additional space from the safety limit to the tank opening. This extra space allows for fuel expansion when temperatures rise, preventing overflow. If fuel is filled up to the tank opening during refueling, the actual amount may exceed the specified capacity. To check the remaining fuel level, drivers can observe the fuel gauge on the right side of the instrument panel, marked with E (empty) and F (full). When the needle is near E, it indicates low fuel, while proximity to F means the tank is nearly full.
16
3
Share

How to Replace the Battery in a Car with Auto Start-Stop?

Detailed information on replacing the battery in a car with auto start-stop is as follows: 1. Method: Prepare a spare battery to jump-start before replacing the old battery. Use the spare battery to maintain power connection and prevent the car's electrical system from losing power. This ensures a power-continuous battery replacement and protects the vehicle's electrical circuits. 2. Storage Battery: There are start-stop batteries and regular batteries. Start-stop batteries usually have an AGM label on them. Cars equipped with start-stop systems require AGM batteries; using regular batteries will significantly reduce the battery's lifespan.
13
4
Share

Why don't 4S stores provide a second car key?

4S stores do not provide a second car key because the vehicle is mortgaged to the bank in exchange for operating funds. The bank retains the vehicle's certificate of conformity and one car key. After the vehicle is sold, the relevant procedures are completed with the bank to retrieve the certificate and key, which does not affect the vehicle in any way. The basic components of a remote key include the following two points: 1. Transmitter: Composed of a transmission switch, transmission antenna, integrated circuit, etc., it contains an identification code storage circuit and an amplitude modulation circuit, with a button-type lithium battery on the opposite side of the circuit. The transmission frequency uses radio waves, and each press of the transmission switch button sends a signal once. 2. Receiver: After the transmitter sends the identification code using shortwave modulation, it is received by the car's shortwave antenna and processed by the distributor into the receiver's electronic control unit for demodulation, where the identification code is compared with the demodulator's code.
14
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.