Charging standard for parking lot of Lianshanpo subway station

It's free for three hours, and it will be charged after that. The parking lot of Lianshanpo subway station is free for the first three hours, and then 3 yuan is charged every half hour. According to the preferential charging policy of subway station parking lot, the card must show the record of transferring to rail transit during the parking period of the day, and the latest entry and exit record cannot be at the same station connected to the parking lot.