Regarding the German-style thing called Auto (it's just a car)-bahn (meaning of roads and other types)- (authentic tunnel, the cave that can be passed through by driving) is actually many folks that often drive there or think about driving on a tour, which is what everyone is more concerned about; after all, the place is a highway and is in a closed tunnel, and once something happens, it may not be a trivial matter! So, let’s talk about the tunnels on German expressways today. [What are the specific safety and security guarantee work]. If someone needs to purchase products such as weak-current cables such as monitored images and sound signals, and strong and weak-current intelligent products that make the tunnel bright and the signal smooth, we can provide global procurement services for weak-current intelligent products! It can really save a lot of time, really!
Let me first talk about the basic concepts to friends who don’t know much about the situation. , which is what we commonly hear about German expressways, is a well-known existence. The tunnels on it are generally built with relatively exquisite construction and complete facilities. They are specially built to deal with high-speed road traffic flow, as well as multiple and changing conditions such as bad weather and complex terrain. (This safety work guarantee system) includes a wide range of aspects, from the most basic ventilation and breathing system, fire fighting methods and equipment for extinguishing fires, to guide people to escape routes and signs, as well as systems that always keep their eyes on monitoring, etc. Every small place has been designed and considered very carefully!
So what are the key and important components, or core key links? Listen to me and you to explain it carefully:
1. ████████——Oh, my mind suddenly didn’t remember how to say the full name in Chinese… Forget it, don’t care about it, what I want to say is the kind of system that can sense the flames spray out, or smell the smoke, and find that the temperature is abnormally rising, yes, fire smoke detection equipment. It can be regarded as a "sentinel level" in the tunnel. It requires that it must be installed at very close points, and the reaction must be as fast as a rabbit, so that it can send out alarms at the very beginning!
2. The emergency lighting of the super powerful invincible stick and the clear and easy-to-understand evacuation and diversion indicator marking system . If the main power supply (electricity) outside the tunnel is not available and the problem is broken, this backup lamp that specializes in dealing with unexpected situations must be lit up immediately and lighted up, and the brightness must not be done with it. As for the sign that guides everyone to where to run and which direction to be safe and safe, it must not only be clear and clear, but also be able to maintain a working state under various bad conditions such as thick smoke and fog, and when the surrounding environment is baked with fire.
3. Strong ventilation and smoke exhaust system facilities. In an environment where the ground is relatively closed and tightly sealed, once a vehicle accidentally bumps into each other, or the car starts to burn itself, it will cause a fire [this word is almost the same as the chemical reaction process of burning], a large amount of choking smoke and toxic gases will soon be produced (gas that are not good for the human body). At this time, the ventilation system must be like a strong man who rushes out the air and smoke, quickly "expelling" those bad and dangerous things out of the tunnel, and strive for and provide valuable and important breathing space and vision to see the things clearly for trapped people and warriors who come to rescue and rescue.
4. Video images and traffic information data monitoring and observation system that are staring at all times, without any gaps. By placing cameras (surveillance probes) arranged in key and critical locations such as the top of the tunnel and next to the wall, the guards on duty in the monitoring center can understand in real time and uninterruptedly how cars run, how people move, and the status of various equipment; if a car does not follow the rules and gets stuck in a traffic jam, or parks in a place that should not be stopped, the system can also automatically remind managers to pay attention by warnings such as sound or image turning red.
5. ████ ███ █████ ████████—Uh…is something that allows the car to know that something has happened, should be slowed down or diverted, and information is transmitted in a timely manner in case of emergency situations. Once something is troublesome and not as usual, you can immediately tell every driver or passenger in the tunnel clearly, just like "Please pay attention to what's wrong, why is it bad?"
Next, we will answer the questions that everyone is diligent in asking questions, feels very curious and is not clear about. We will help you find out some potential questions:
Q What is the most worrying and nervous core point in it? I think there is something special difference between it and the tunnel on the road in our city
A asked me to say that this core must be able to use the fastest speed at extremely urgent and critical moments [quickly immediately! ]Click the people trapped in the tunnel belly and the important goods pulled in the car carefully and safely guide and lead the transfer and evacuation out of the dangerous area! Compared with the tunnels below the downtown area in the city, it faces the problem of its own unique characteristics. For example, its cars are generally fast and fast, and the traffic volume of cars may be much large, especially the proportion of heavy-duty trucks may not be low; in addition, many tunnels on highways may be several km long. Once a disaster occurs somewhere in the middle, the journey (distance) of the rescue team professionals and equipment may be farther, and time may not be guaranteed to be so fast and timely! So, the requirements for communication signal guarantee, ensuring no blind spots, and smoke exhaust efficiency so that the super-large volume can be extracted every minute are obviously high!
Some vehicles break down inside. What should the driver deal with it immediately? Should we immediately leave the car body and get out and run around looking for exits?
A. At this time, you must remember that you must not be too panicked and anxious. Be at a loss. You must try your best to slowly and observe the surroundings and move them to the park (stop where to park) in the emergency parking area specially divided by the tunnel, or in relatively wide and spacious places where there are too many obstacles. Then, turn on the double flash lights (that is the two small lights that flash like blinking eyes!) to the car coming behind me, indicating that something was wrong with me. besides! 【It must be remembered! 】The ideal situation for people on the car is to get off the car first and go to a relatively safe place on both sides of the car instead of standing between the door and traffic and walking quickly to the niche specially prepared for everyone on the inner side of the tunnel wall, which is recessed into a small piece of emergency area (hiding and waiting to save us), instead of thinking about "I'll walk out by myself" and then stroll around the driving lane of the tunnel (the driving lane) and taking risks. That is really too dangerous and unsafe, and it is very easy to have an accidental injury incident again! After that, yes, then quickly press the red or conspicuous call / box on the wall (the small pavilion and small box device that calls for help during an emergency) and get in touch with the monitoring center to clearly explain your specific location and troubles.
In my personal opinion, in this field, it is a complete and vivid way to show the rigor, meticulous and preciseness of engineering technology and the power of science and technology, as well as the pursuit of human life values. Moreover, to ensure that such a high-end (complex and multi-category) system is always working and running well without any mistakes. In addition to designing, construction and installation, it is always checking, maintaining and repairing every day (if this thing is broken, you can repair it and let it stand up and work again, or wipe oil regularly for it to maintain it) it also takes up enough parts and must not be taken lightly and neglected and careless.
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