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This report paper examines current domestic water demand elasticity, with weather variables, as an aid to assessing the potential impact of climate change on domestic water demand. An empirical model of the relationship between summer domestic water demand and concurrent weather under current climatic and socio-economic conditions is developed and then applied to weather data which have been produced for 2020AD climate scenarios. The model is based on data for the Essex area supplied by Essex and Suffolk Water. The results suggest an increase in summer seven-day average domestic-water demand of 3.3 l/hd. d (range 1.37–5.72 l/hd. d), in addition to an increase in the frequency of large demand events. The analysis forms the basis of a wider exposition, examining future domestic water demand under varying climate-change scenarios. 相似文献
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This paper examines water management within the environment. It argues that discussion of, and decision-making governing, the allocation of water for the environment should be expanded to consider the application of demand management to the environment. The paper examines the technical feasibility of this aspect and proposes some principles which address parity across water-use sectors in terms of their water rights, responsibilities and performance objectives. It concludes that a more equitable policy framework encourages better resource analysis and promotes better informed trade-offs and management concerning water allocation, particularly in times of low water availability. 相似文献
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城市需水量预测需注意的几个问题 总被引:6,自引:0,他引:6
分析了城市用水的变化趋势,认为人均用水量指标并不是随着经济的发展持续上升,应科学判断城市的用水发展趋势;指出应该正确认识指标的适用期限;研究发现不同的统计口径会造成需水量预测结果的偏差,现状用水人口数应与总体规划保持一致,按照城镇人口的数量计算;最后提出自备水源对用水指标的影响较大,应认真分析,合理取舍。 相似文献
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S. G. Evans MSc MIBiol CBiol MIFM P. B. Spillett MSc PhD FIFM K. Colquhoun PhD MIBiol CBiol 《Water and Environment Journal》2003,17(4):257-261
In March 2000, a document entitled Draft Regional Planning Guidance for the South East was published with the primary aim of providing a regional framework for the preparation of development plans to the year 2016.
This paper discusses the potential effects for the water industry of SERPLAN's predicted levels of housing growth on water resources, sewage treatment and the environment. The need for sustainable development with the competing pressures of water-resource limitation, changing regulation, increasing demand and the environment, are discussed. Thames Water's scale of operations is described together with the range of measures aimed at managing the reasonable demands of customers, consistent with achieving sustainable growth. Basingstoke is described as a wastewater case study, highlighting the problem in fulfilling the sewerage undertaker's statutory duties in (a) meeting already stringent effluent-treatment standards which are necessary to maintain and improve river quality, and (b) providing the necessary infrastructure for an area which is earmarked for continuing development. 相似文献
This paper discusses the potential effects for the water industry of SERPLAN's predicted levels of housing growth on water resources, sewage treatment and the environment. The need for sustainable development with the competing pressures of water-resource limitation, changing regulation, increasing demand and the environment, are discussed. Thames Water's scale of operations is described together with the range of measures aimed at managing the reasonable demands of customers, consistent with achieving sustainable growth. Basingstoke is described as a wastewater case study, highlighting the problem in fulfilling the sewerage undertaker's statutory duties in (a) meeting already stringent effluent-treatment standards which are necessary to maintain and improve river quality, and (b) providing the necessary infrastructure for an area which is earmarked for continuing development. 相似文献
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《城市给水工程规划规范》在杭州给水工程规划中的应用 总被引:2,自引:0,他引:2
以编制杭州给水工程规划为例 ,提出应用《城市给水工程规划规范》应注意的问题 ,并进一步说明该规范起到的积极有效的作用。 相似文献
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简要评述了补偿收缩抗渗砼在西客站中的应用,分析了补偿收缩砼的冬施适应性及在西客站冬期施工中的冬施措施。 相似文献
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停车需求管理的机理研究 总被引:3,自引:0,他引:3
运用微观经济学原理,建立了一个直观的图解模型,来分析停车需求管理补偿交通拥挤的外部成本及停车的社会成本、削减交通量、缓解交通拥挤的机理和效果,并与道路定价和其他交通限制措施进行比较.通过分析得出:停车需求管理补偿了停车的社会成本和交通拥挤的外部成本,不但可以优化停车活动本身,还能够削减交通量,优化城市道路网上的拥挤水平,而且适当的停车收费政策与最优道路定价政策是等效的.最后还探讨了停车管理政策在交通需求管理中的地位和作用. 相似文献
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停车需求管理的机理研究 总被引:3,自引:1,他引:2
运用微观经济学原理 ,建立了一个直观的图解模型 ,来分析停车需求管理补偿交通拥挤的外部成本及停车的社会成本、削减交通量、缓解交通拥挤的机理和效果 ,并与道路定价和其他交通限制措施进行比较。通过分析得出 :停车需求管理补偿了停车的社会成本和交通拥挤的外部成本 ,不但可以优化停车活动本身 ,还能够削减交通量 ,优化城市道路网上的拥挤水平 ,而且适当的停车收费政策与最优道路定价政策是等效的。最后还探讨了停车管理政策在交通需求管理中的地位和作用 相似文献
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阐述了通信和信息科技的现代含义、可互操作设备的发展和互动多媒体全球信息基础设施的概念 ,并对新技术带来的冲击 ,对城市建设的影响以及数字城市的规划等问题进行了探讨。 相似文献
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万家寨水利枢纽水压致裂应力测量结果和分析 总被引:2,自引:1,他引:2
万家寨水利枢纽工程进行了3个钻孔的水压致裂地应力测量。取得了该区最大水平主应力、最水水平主应力量值及最大水平主应力方向。根据测试结果对本区应力状态进行了分析,并对大坝及地下泵站的稳定性进行了讨论。 相似文献
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全球变暖、热岛效应与城市规划及城市设计 总被引:11,自引:1,他引:10
全球变暖和热岛效应对城市环境带来的危害越来越引起人们的关注 ,现代城市规划和设计应对此给予足够的重视 ,在能源规划及能源政策、城市开发建设模式、交通规划与交通政策、绿化系统的规划设计等方面采取针对性措施 ,有效地减缓和控制全球变暖和热岛效应及其所带来的负面影响 相似文献