Study on Green Tunnel Entrance Landscape and Its Evaluation System

Abstract

On the basis of study on concept of domestic and overseas tunnel entrance landscape and the evaluation methods, a concept of green tunnel entrance landscape was brought forward with consideration of safety, artistry, economy and zoology safety of tunnel structure in the eye shot of its whole lifecycle. The green tunnel entrance landscape comprises tunnel entrance, extention structure of tunnel entrance, the mountain around the tunnel entrance, the extend segment of tunnel entrance and their greening, etc. A three-layer evaluation system of green tunnel entrance landscape, which including aim layer, rule layer and index layer, was established. When use the system to evaluate a tunnel entrance landscape, weight factor vectors can be obtained by AHP method, membership matrixes can be gained according to the fuzzy mathematical theory, two-grade evaluation of green tunnel entrance landscape can be given by means of matrix operations, and the grade of landscape can be determined by its synthetic evaluation score and the nearest rule.