Without navigation, most people are road-crazy and can't tell the difference between the east and the west. If you rely too much on navigation, you will still go the wrong way. Someone drives along with navigation and ends up driving into the pond. As a driver, you must master some basic skills to identify street signs and directions. Nowadays, national roads, urban roads and expressway all have a complete sign system. As long as you learn to read street signs, you will probably not get lost, which is more useful than navigation. There are many distance signs on the expressway, which show how many kilometers away from a certain place. The setting function of these distance signs is that the driver knows how far his position is from his destination, so that he can know the way in his heart and not go wrong. Distance sign of high-speed entrance

1. Distance sign of high-speed entrance is generally set at the edge of the main road within 2 kilometers of the entrance of expressway, with the name of a certain high-speed at the top, the entrance written in the middle, and the number of kilometers written at the bottom, usually within 2 kilometers. This sign refers to the distance between your place and the toll station of the expressway entrance. The purpose of this sign is to facilitate people who get on the expressway. When you want to get on the expressway, you will know that the expressway entrance is nearby when you see this sign, and then you will see this sign when you continue driving, but the distance will continue to get shorter until you enter the toll station. Some of these signs have arrows on them, indicating the direction, and there are instructions at the fork in the road. Even if you don't look at the navigation, you can follow these signs and enter expressway. High-speed distance sign

2. High-speed distance sign When driving on high-speed, you will often see this kind of sign, with two or three rows of place names from top to bottom, and the right side of the place name is written with a certain kilometer, as shown in the above picture. This sign refers to the distance from your place to the place name exit on the sign, which can also be understood as the distance to the place name toll station on the sign. The above picture means that the location of this brand is 412 kilometers away from Shenyang Expressway exit, 118 kilometers away from Changchun Expressway exit and 16 kilometers away from Taolaizhao Expressway exit. This sign has nothing to do with the boundary and the city center. It does not mean that the location of the sign is 412 kilometers from the Shenyang boundary. This sign is based on the mileage of building expressway, not a straight line distance or the boundary distance between cities. The purpose of this brand is to let you know how far you are from the destination exit. It is 412 kilometers away from Shenyang, and the driver will know that it will take about four hours to get off the expressway. As for how far Shenyang Expressway is from the center of Shenyang, that is another question. Other high-speed distance signs

3. Other high-speed distance signs There is also a distance sign on the high-speed, which will show how many kilometers it is from the certain high-speed. The certain high-speed here is another high-speed, not the one you are driving at present. expressway in China is now complicated, and many high-speed roads will meet at a certain node. When you are ready to change from one high-speed to another, this sign is very useful, similar to the subway transfer, as shown in the above figure. This sign means that the distance between expressway where you are now and another high-speed intersection is also calculated in terms of high-speed mileage, not in a straight line. The sign in the above picture means that you are still 4 kilometers away from the intersection of Meiguan Expressway and 13 kilometers away from the intersection of Jiche Expressway in expressway. When you arrive within 2 kilometers of these two expressways, there will be three signs indicating the distance, namely, 2 kilometers, 1 kilometers and 511 meters, which will guide you to change the expressway correctly step by step. There are many service areas on the expressway. When you are driving at a high speed and are in a hurry, you need to know how many kilometers the next service area is from your location, so this service area is very useful from the sign. The service area distance sign refers to the distance from your location to the service area when you see this sign. For example, the above picture means that your location is 3 kilometers away from Qingxian service area, 48 kilometers away from Cangzhou service area and 87 kilometers away from Dongguang service area, all of which are calculated by expressway mileage. When I am driving at high speed and there is not much gas in my car, I will also look at this sign and choose a service area to refuel, especially when I can add or not, and I must calculate the distance. Pay attention to this sign. On the far left, the functions provided by the service area are also displayed. The letter P indicates that the service area has the function of parking, the tanker sign indicates that the service area can refuel, the wrench icon indicates that the service area has the service of repairing cars, and the knife and fork icon indicates that the service area can provide catering services. Be sure to read it clearly. Not all service areas have these four icons. Some service areas have no gas station and will be displayed on this sign, that is, there is no icon of the tanker, and some service areas have no catering service, but all service areas have toilets. Expressway exit sign

5. Expressway exit sign This sign means: the distance from your location to the expressway exit. At the top of this sign, there will be the word exit. If there are multiple exits connected together, it will show exit 1, exit 2 and exit 3. This sign is easy to be mistaken and must be understood. When I was driving on the highway, I misread this card several times and got off the highway from the wrong exit. The reason is that several different exits are connected together and not far away. If I didn't look carefully, I would easily go wrong. If I go wrong, I would have to run dozens of kilometers more. It should be noted that the rightmost exit must be the nearest exit, and the leftmost exit must be the farthest exit, and the distance can also explain this. For example, in the above picture, the first exit is the straight port, with a distance of 2 kilometers. It is the nearest exit, marked with the number 2. If you want to go to Jinhua, you have to take another exit, marked with the number 1. Driving on the highway is very fast, and it often disappears at a glance. The navigation will also show the correct exit. Sometimes, if you don't concentrate on driving, you will easily go wrong. If you look at this sign clearly, you will not go wrong. High-speed distance sign

6. There is also a distance sign on expressway to correct the distance between vehicles, because it is safe enough to keep a reasonable distance when driving at high speed. This kind of car distance sign usually appears in groups, and there are four brands, such as 1 meter, 51 meter, 111 meter and 211 meter. The distance between the two brands is the difference of the number subtraction on the two brands, which is set to prevent from being too close to the car.