Theoretical framework of mountainy highway tunnel entrance on landscape design

With the process of highway construction, mountainy highway tunnels are increasing gradually, and subsequently the importance of the tunnel entrance landscape design becomes visible. At present, there are many researches about landscape designing of mountainy highway tunnel entrances, but no perfecter theoretical framework exists. Therefore in this paper the author aims to build a theoretical framework of mountainy highway tunnel entrance on landscape design, classify the landscapes of the mountainy highway tunnels, and then put forward the landscape design elements of mountainy highway tunnel entrance.