高等级公路中绿化与安全的关系分析

在高等级公路中，绿化与安全的关系问题越来越为人们所重视。绿化一方面可以改善公路的交通安全状况；另一方面也会带来一些安全隐患。本文论述了绿化的视线诱导、线形预告、消除紧张、明暗过渡、缓冲栽植等作用，同时也分析了公路绿化中存在的影响视线、侵占道路、加重事故后果、造成眩目、视觉污染、视线误导等影响安全的问题，最后提出了符合交通安全要求的公路绿化基本方法。

Analysis of Relations Between Planting and Safety of High-Type Highways

Nowadays, people pay more and more attention to the relations between the planting and the safety of high-type highways. On the one hand the highway planting can ensure the road safety; on the other hand, the planting may cause road accidents. In this paper, planting for visual guidance, alignment foretold, nervousness dispelled, transition between brightness and dullness and buffer planting are discussed. Then, some issues influencing safety in highway planting are analyzed, such as visual intrusion, encroaching into road clearance, aggravating accident, causing dazzle, visual pollution, visual misdirection and so on. Last, the planting methods based on the road safety are given.