I d like to ask my friends what a sign means.

There is no language ... Is the landlord a foreigner?

It is impassable, and the road is quietly being repaired.

1. Warning signs: signs that warn vehicles and pedestrians to pay attention to dangerous places.

2. Prohibition signs: signs that prohibit or restrict the traffic behavior of vehicles and pedestrians.

3. Indication signs: signs indicating vehicles and pedestrians.

4. Guidance signs: signs that convey the direction, location, and distance information of the road.

Expand the wisdom of the material:First, check the accuracy of the test system. Choose.

One or two familiar sections of the road, or a newly opened hotel, see if the system can accurately show the location of the car. Because the streets and road sections are always changing, your system must also provide regular updates.

Second, consider the storage capacity of the system. In the United States, if you want to save all the maps of the whole country, you need at least three CDs. Therefore, the car navigation system must also have a correspondingly large hard disk memory.

The 3C mark is the most basic safety certification. The double arrows are counterclockwise around a circle, and there is a number in the circle that is the "EU RoHS" standard, and 20 represents the product**The expiration date is 20 years.

One is the triple C certification mark, and the other should be that the carton can be recycled 20 times!

This is to watch out for pedestrian signs.

It is generally located in front of a pedestrian crossing on a suburban road. Due to the large number of pedestrian crossing lines on urban roads, they can be set according to actual needs.

Chinese name: Watch out for pedestrians.

Type: Traffic ban sign.

Safety signs are signs composed of safety colors, borders, and graphic symbols or words with images as the main features, which are used to express safety information related to fire protection.

According to the relevant provisions of the state, the following places or parts should be set up with corresponding warning safety signs:

Factories, offices, shopping malls (shops), theaters, entertainment halls, gymnasiums, hospitals, restaurants, hotels, Internet cafes, etc. in public places and some related places, in addition to the provisions of the above safety warning stickers, should also be set up corresponding reminders and warning signs according to the actual situation and danger level of the locality.

Meaning a, it is used to remind drivers to slow down, pay attention to pedestrians, and remind pedestrians to pay attention to safety.

b. It is used to remind the driver to pay attention to the pedestrians ahead.

c. Remind drivers to avoid pedestrians.

Note: There is a T-junction ahead.