when distance becomes the only safety
Safety distance, braking distance, reaction distance, subject one
In subject one, stopping sight distance included reaction distance, stopping distance, and safety distance. Reaction distance refers to the distance that the car travels from the moment the driver finds an obstacle in front of him and decides to take braking measures to the moment the brakes really start to work. Braking distance refers to the distance from the moment the brakes take effect to the moment the car comes to a complete stop. The safe distance (in the concept of stopping sight distance) was the minimum safe distance that should be maintained between a car and an obstacle after it had completely stopped.
For example, in some scenarios, the safety distance was stipulated: on the highway, when the speed was lower than 100 km/h, a safety distance of more than 50 meters should be maintained from the car in front; when the speed was higher than 100 km/h, a safety distance of more than 100 meters should be maintained from the car in front; when the speed was equal to 100 km/h, the minimum horizontal distance was 1.5 meters, the safety distance was 100 meters, and the dangerous distance was 50 meters. Also, in low visibility weather conditions, when the visibility is less than 200 meters, the speed should not exceed 60 km/h, and the distance between the car in front of the same lane should be at least 100 meters; when the visibility is less than 50 meters, it should leave the highway.
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2026-07-14 14:40
Is food safety tested in the distance?
Distance Testing was a professional laboratory engaged in electromagnetic compatibility and safety testing, technical consultation and certification consulting services. Its main business was electromagnetic compatibility (EMC) testing, electronic and electrical product safety testing services, optical performance testing services, environmental and reliability testing services, etc. It did not indicate that it had a direct business for food safety testing, so it was impossible to determine its food safety testing situation.
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2026-01-08 07:49
What is the difference between the braking distance, the reaction distance, and the safety distance?
Braking distance refers to the distance traveled by the vehicle when the vehicle is at a certain speed. It is one of the key parameters to measure the braking performance of the vehicle, including the reaction distance and the braking distance.
The reaction distance referred to the distance the vehicle traveled within the driver's reaction time. The reaction time here included the brake reaction time (from the discovery of the stimulus to the movement of the foot to the brake pedal), the brake action time (from the start of the brake pedal to the maximum braking force), and the continuous braking time (from the maximum braking force to the car stopping).
The safe distance refers to the necessary distance between the rear vehicle and the front vehicle to avoid accidental collisions. Its accurate measurement depends on the braking distance, but it also takes into account the driver's reaction time. Different driving speeds, weather conditions, types of vehicles, and road conditions had different requirements for the safe distance.
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2026-07-14 08:35
A novel as good as 'Only To Be Seen From A Distance'
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2025-01-31 04:01
Life is not only poetry and distance, but also the sea of stars
" Life is not only about poetry and distance, but also the sea of stars " was a poetic expression, which meant that life was not limited to the trivial things in front of us and the pressure of reality. There was a broader world waiting for us to explore and enjoy. This sentence originated from Gao Xiaosong's lyrics and Xu Wei's song,"Life is more than what is in front of you." It conveyed a positive message, encouraging people to remain optimistic and look forward to the future in the face of life's challenges. Although the search results did not explain the meaning of this sentence, it could be understood that life was not just the trivialities and difficulties of reality. There were better things waiting for us to discover and pursue, such as poetry and the freedom and vastness of the distance.
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2025-01-19 00:43
Choosing the distance, I only care about the wind and rain
"If you choose the distance, you will only care about the wind and rain." It expressed a firm belief and a brave attitude. Once a goal was set (the distance represented a goal or an ideal), one should not be hindered by difficulties. One should not avoid difficulties and obstacles, and move forward courageously towards the goal with an unwavering spirit. No matter what kind of wind and rain (representing various difficulties, setbacks, etc.), one should not stop and pursue it bravely. This kind of attitude reflected a positive, hardworking, and fearless spirit.
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2026-06-22 23:54
Choosing the distance, I only care about the wind and rain
" If you choose a distant place, you will only care about the trials and hardships."
In the journey of life, we are often faced with a variety of choices. Once we have chosen a distant goal, we should embark on the journey without hesitation, not afraid of the baptism of wind and rain.
Far away, it was a place filled with hope and dreams. It might be a great achievement in one's career, a profound realm in the academic field, or an ideal destination in the depths of one's heart. However, the road to the distance was never smooth sailing. As Wang Guozhen said in his poem," I don't think about whether I can succeed or not. Since I have chosen the distance, I only care about the wind and rain." This expressed a firm belief and fearless courage.
The wind and rain symbolized the difficulties and setbacks that we would inevitably encounter in the process of pursuing the distance. It could be the obstacles of the outside world, such as the lack of funds, the doubts and objections of others, or the contradictions and struggles of the heart, such as doubts about their own abilities, fear of the unknown, etc. In real life, there were many successful people who used their experiences to interpret this spirit of going through hardships. On the road to creating a business empire, Ma Yun was still firmly moving in the direction of e-commerce despite suffering setbacks in his studies, facing a shortage of funds, and the people around him were not optimistic. It was the same for Lincoln abroad. His repeated election failures did not stop him from moving forward. In the end, he succeeded.
When we chose the distance, we had already waved goodbye to the ordinary comfort. On the road of trials and tribulations, we need to maintain our dedication to our goals. This persistence was not blind, but based on a clear understanding of the true desire in his heart. We must not be scared by the wind and rain, but see it as an opportunity to grow and gain experience. Every time we overcome difficulties, every time we go through storms, it brings us closer to our distant goal and makes our hearts stronger.
At the same time, going through trials and tribulations requires us to have the ability to adapt to changes. In the long journey of pursuing the distance, the situation may change constantly. We need to adjust our strategies and methods at the right time. However, no matter how he adjusted, his yearning for the distance and his determination to travel through hardships could not be shaken.
We have chosen the distance on the road of life, so we must hold the attitude of going through hardships and bravely advance forward. Only in this way can we pass through the haze of wind and rain, reach the distant dream, and reap the joy of success and the fulfillment of life.
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2026-06-22 15:00
Reaction distance, brake distance
Reaction distance refers to the distance the vehicle traveled within the driver's reaction time, including the brake reaction time (from the discovery of the stimulus to the movement of the foot to the brake pedal), the brake action time (from the start of the brake pedal to the maximum braking force), and the continuous braking time (from the maximum braking force to the car stopping).
Braking distance referred to the distance traveled by a vehicle from the beginning of braking to the complete standstill of the vehicle when the vehicle was moving at a certain speed. It was the distance traveled by the vehicle from the moment the driver stepped on the brake pedal to the moment the vehicle came to a complete stop at a certain initial speed. It included reaction distance and braking distance. The smaller the braking distance, the better the braking performance of the car.
The length of the reaction distance depended on the driving speed and reaction time. The higher the driving speed or the longer the reaction time, the longer the reaction distance. The reaction time was directly related to the driver's sensitivity and technical proficiency. Usually, the reaction time was 0.75 to 1 second. For example, when the driving speed was 30 km/h and the reaction time was 1 second, the reaction distance was 8.33 meters.
The length of the braking distance was related to the driving speed, the braking force, and the friction coefficient. The higher the driving speed, the longer the braking distance. The driving speed was proportional to the square of the braking distance. The calculation method (commonly used internationally) was: Braking distance = vehicle speed/10 * 3+ vehicle speed/10 * vehicle speed/10, but there would be differences if the tires were different (such as summer tires and winter tires) or the road conditions were different.
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2026-07-15 17:43
How about Nan Sheng's book,'Not for Encounter, Only for Distance'?
Nan Sheng's book," Not for Meeting, but for the Distance " was a modern romance novel about the heroine, Qin Yue, who decided to go far away to pursue her dream after escaping from reality. The plot of this novel was full of love, friendship, and life. At the same time, there were also some deep characters and plots that inspired the readers.
" Not for Meeting, but for Distance " is a modern romance novel worth recommending. If you like novels with twists and turns and full of emotional resonance, this book may bring you a different reading experience.
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2024-09-23 08:29
Life is a long-distance race, you can only laugh at the end
Life was a long-distance race, and only those who persevered to the end could laugh. In this analogy, the starting line was only suitable for sprinting, while life was a long marathon. The winner who had the last laugh was not the person who ran the fastest at the starting line, but those who could persist in running at their own pace. They had the courage and diligence to overcome difficulties and persevere. The success of life did not depend on the lead at the beginning, but on the person who never slacked off. Therefore, only those who persevered to the end could truly laugh.
1 answer
2025-01-15 11:47
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