高速公路景观安全协调性研究

Research on Safety Harmony of Landscapes on Expressways

采用加权区间层次分析法和模糊数学法对高速公路景观安全协调性进行分析,将高速公路景观设计安全评价细分为线形、中央分隔带、路侧、桥梁、隧道、交叉口、服务区、附属设施等8个评价要素,分项提取和建立各自的评价指标体系,定量评价其景观安全协调性的优劣程度,以重庆涪陵至石柱沿江高速公路的景观安全协调性研究为例对该指标体系进行验证。结果表明加权区间层次分析法有效可行,简洁易实现,具有较好的现实意义。

Design of traffic landscapes is like a “double-edged sword” ： beautiful landscape design can relieve drivers＇ fatigue and increase safety; on the contrary traffic accidents are easy to be caused. This paper analyzes safety harmony of expressway landscapes by means of the weighting interval analytic hierarchy process and fuzzy mathematic method, divides safety evaluation in design of expressway landscapes into 8 evaluation factors including linetypes, central medians, road sides, bridges, tunnels, intersections, service areas and ancillary facilities, extracts respective items and establishes respective evaluation index systems, quantitatively evaluates degrees of advantages and disadvantages of safety harmony of landscapes, and verifies the index systems with the research on safety harmony of landscapes of Chongqing Fuling- Shizhu Expressway along the river as an example. The results show that the weighting interval analytic hierarchy process is effective, feasible, simple and easy to realize and exhibits good practical significance.