Why aren't there five Chongqing slogans on the street now?

The reasons why five Chongqing slogans disappeared in the street may include:

1. According to the old advertising law, outdoor advertising settings must be approved. Perhaps these advertisements were originally approved, but the approval expired or they were not applied for maintenance in time, which led to the invalidation of the advertisements.

2. The new advertising law puts forward new requirements for outdoor advertising, and some non-compliant advertising slogans need to be deleted or updated.

3. These slogans may have reached the service life or maintenance cycle because they have been set for too long and need to be replaced or repaired.

4. Due to urban management or aesthetic requirements, the original slogan no longer meets the current urban image or aesthetic standards and needs to be updated or deleted.

In a word, the disappearance of these slogans may be the result of a variety of reasons, which also reflects the continuous changes and progress of urban management and advertising supervision.