What does 'four days in and four days out' mean in Guangzhou?

[Ann]

Guangzhou's 'four days in and four days out' policy refers to non-local vehicles (including temporary license plate vehicles) entering Guangzhou's central urban area or related controlled areas. These vehicles are allowed to operate continuously for a maximum of 4 days, and must wait at least 4 days before entering again. Below are specific details: 1. Penalties for violations: On permissible driving days, vehicles can enter the restricted area an unlimited number of times. After the driving calculation period ends, a non-driving calculation period begins, during which the vehicle must not drive in the controlled area for 4 consecutive days. If the vehicle re-enters before the 4-day interval has passed, each violation will result in a fine and 3 penalty points. 2. Purpose of implementation: This policy primarily targets sections of Guangzhou's central urban area with high traffic intensity from localized non-local vehicles, aiming to reduce their impact on traffic. Controlled areas should form a network to prevent controlled vehicles from entering through alternative routes, which could undermine the effectiveness of the control measures.