1. According to the official website information of Puyang Library, the parking fee of the library is free for vehicles parked within 30 minutes (including 30 minutes).
2 vehicles parked for more than 30 minutes, the first 30 minutes are included in the charging time, and each vehicle is 4 yuan per hour. If it is less than 1 hour, it will be calculated as 1 hour.
3 vehicles parked for more than 3 hours (including 3 hours), the first 3 hours are included in the charging time, and each vehicle is 4 yuan per hour. If it is less than 1 hour, it will be calculated as 1 hour.