外文翻譯--城市道路線位選擇之要點-預覽頁
【正文】 g cost should be taken into account. In addition,we need to carry out the economic analysis in the feasibility study for the road’s construction,and to carry out the analysis in terms of economy and social benefits when paring the schemes of parts of the road, so that the linebit and its technical indicators could be settled down by its service level and the benefits for economy and society. . The protection for water resources At present, our country’s intensity of controlling water pollution is increasing year after year, and people have realized that the seriousness of ecological deterioration caused by water pollution. So when reservoirs, lakes and other water bodies get involved in the process of line selection, we should pay special attention to whether these water bodies are the residents’drinking water sources or not. Because the water on the pavement will cause contamination, direct discharging the above water bodies will damage the water resources and threat the lives of urban residents. Therefore,when setting down the lines,we must give priority to protecting the water resources,set them down at the lower reaches of water bodies or beside the protection line of water some special circumstances such as having to build a bridge over the water or set down the line at the upper reaches,we should carry out especial drainage design, make the water on pavement be discharged and disposed seperately ,and arrange the preplans for the accidents caused by the hazardous chemicals,in order to ensure the water safety.. The protection for cultural relics If there is a cultural relic in the area going to be used for road constrution or within the demolition site,we have to evaluate the level of the cultural relic according to Law of the People39。城市道路已不是一個孤立的客體，它的發(fā)展越來越受到城市發(fā)展中的其他因素的制約。線位比選是指在日常設計工作中，綜合考慮經(jīng)濟、文化、環(huán)境、行人、安全、道路交叉等各方面因素，結(jié)合現(xiàn)場實際情況，在不影響當?shù)厝罕娚?、?jīng)濟發(fā)展的前提下，多線位比選、多方面比較，得出一個最經(jīng)濟、最可行、最合理同時滿足國家相關規(guī)范、政策的線位。近年來，隨著城市建設的突飛猛進，城市規(guī)劃趕不上城市建設的現(xiàn)象頻頻出現(xiàn)，由此也造成了大量的重復建設和資源浪費。一般設計者的習慣思維是“逢山開路，遇水架橋”，這就造成基建工程完成后，大片的植被和原生地貌需要很長時間才能恢復或根本無法恢復，甚至造成一系列的環(huán)境災害。、對公眾意見的采納由于城市建設越來越與老百姓的切身利益相關，城市道路建設也應該在線位比選過程（方案階段）對當?shù)厝罕娺M行公示，廣泛采納公眾意見，做到中等以上規(guī)模工程方案“公示化”，把公眾意見作為線位比選時考慮的一個重要因素，避免一個工程在開始實施時遭到當?shù)厝罕姷钠毡榉磳?，造成工程的進度緩慢、工期無限延長，最終導致城市道路建設成為影響當?shù)亟?jīng)濟穩(wěn)定發(fā)展的不利因素。交通部組織編寫的《新理念公路設計指南（2005版）》中明確提出要樹立“全壽命周期成本”的設計理念，也就是道路線位選擇應從建設、養(yǎng)護、運營、管理等各階段進行全面經(jīng)濟比較，建設成本和運營成本統(tǒng)籌考慮。因此路線布設時，必須優(yōu)先考慮水源保護線，盡量在水體下游或水源保護線外布線，特殊情況下必須以橋梁跨越水體或在上游布線時，應進行專項排水設計，做到路面積水獨立排除處理，做好危險、化學物品事故預案，確保水資源的安全。結(jié)論看似簡單的線位比選其實蘊藏著很大
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