The Hailian parking system can improve residential parking efficiency in the following ways:

1. Intelligent management: Introduce an intelligent parking management system to achieve reservation, navigation, and monitoring of parking spaces, improving the utilization and management efficiency of parking spaces.

2. Provide real-time query of parking information: through mobile app or Internet platform, let car owners know about the parking space at any time to avoid wasting time because they can't find a parking space.

3. Develop reasonable parking policies: Based on the parking needs and actual situation of residential communities, develop reasonable parking policies, such as time-based charging and long-term rental discounts, to encourage car owners to use parking resources reasonably.

4. Increase the number of parking spaces: Based on the actual situation of residential communities, plan the number of parking spaces reasonably and consider adding facilities such as underground parking garages to meet the parking needs of residents.

5. Regular maintenance and management of parking facilities: Regularly inspect the usage of parking spaces, promptly repair damaged parking spaces, ensure the normal operation of parking facilities, and improve parking efficiency.

Through the above methods, the Hailian parking system can effectively improve the efficiency of residential parking, enhance the level of parking management in residential communities, and improve the parking experience of residents.