The first step is to place the entrance, which is the door for tourists to enter.
The second step is to place an exit, which is the door where tourists come out.
Step 3, add an entrance path to the entrance. It should be laid from the entrance of the facility to the trunk.
Visit.
Step 4, add a ticket office between the entrance path and the main road. If the gap is right, it will intelligently lay the connection.
Two roads.