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1.
李军 《城市》2011,(12):62-64
一、前言由于我国机动车保有量急剧增加、现有道路基础设施供应量不足以及交通管理缺陷等原因,城市交通拥堵已经成为当前制约城市发展的瓶颈。城市交通拥堵带来的社会经济损失、交通效率降低、交通安全威胁、环境污染、能源和土地浪费严重制约了社会的发展。  相似文献   

2.
国家中心城市的定位和缓解城市交通拥堵的迫切需要要求广州在新的历史时期,提出针对性强的交通改善策略纲领,建立起与国家中心城市地位相适应的城市交通环境。通过运行现状的调研,深入分析城市交通运行内在规律,本文系统地制定了交通与土地利用协调发展、交通方式统筹发展、交通管理智能发展等三个方面的改善策略。  相似文献   

3.
陈桂生 《城市观察》2012,(3):112-120
随着社会经济的不断发展,城区交通拥挤已成为一个普遍性问题。机动车快速增加、道路建设滞后、城市规划不合理、交通管理水平落后,造成的日益严重的交通拥堵影响了市民出行,也制约了城市治理及其经济发展。借鉴域内外先进经验,不断加强市政路网建设、完善公共交通,合理规划城市建设、公民文明交通意识建设,可以逐渐缓解城市拥堵问题。  相似文献   

4.
交通拥堵治理是城市交通综合治理的重要内容,智慧交通则是实现城市交通治理能力和治理体系现代化的核心手段.杭州市自2013年起持续开展城市交通拥堵治理工作,七年来杭州智慧治堵的方式方法也随之不断创新、成熟.自2016年4月起杭州在全国率先提出建设城市大脑,并以交通领域为突破口,开启了利用大数据应用改善城市交通拥堵的实践探索,目前已形成包括智慧化交通管理应用、智慧化公共交通应用、智慧化堵点治理应用、智慧化公众服务应用等四个方面的实践体系,文章详细介绍了相关经验.  相似文献   

5.
中国城市的超常增长已经为世人熟知。如今,中国已经有160座城市的居民超过百万,总人口的一半以上居住在城市,这个增长速度是西方城市的两到三倍。这种空前的人口移动带来了巨大的压力,其中感受最明显的部门之一就是交通。中国汽车数量以每年超过10%的速度增加,因此,城市规划者和交通管理部门必须有创新性的技术才能解决道路拥堵。尽管北京等城市都已经建立了好几个专门播报最新路况信息的广播电台,但仍然无法防止拥堵的出现,如  相似文献   

6.
由于城市化、机动化的快速发展,越来越多的中国城市正面临着城市交通拥堵的问题,如何有效缓堵已经成为一个战略性难题。本文分析了城市交通拥堵的实质,对许多措施缓堵效果不佳的原因进行了系统、深入地剖析,并对我国城市交通缓堵进程中的关键问题进行阐述。  相似文献   

7.
梁青山 《城市》2013,(5):48-51
一、引言随着城市的快速发展,交通拥堵成为大城市发展过程中必然会经历的一幕,世界各大城市尤其是发达国家的大城市在经济快速发展的过程中,道路交通都经历了从畅通到拥堵,再从拥堵到缓解的过程。早在20世纪60年代,国外就开始对相关问题进行了探索,把改善城市交通拥堵的工作重点放在了加强交通基础设施建设上。实践证明,这种依靠增加交通供给解决城市拥堵问题的思路弊大  相似文献   

8.
随着交通工具的快速发展和人们生活的提高,私家车越来越多,随之而来的是道路的负载量也在日益增加,城市交通拥堵也越来越严重。交通控制也变得越发重要了,引发了人们对交通控制的重视,加强对交通管理的研究及探讨。也大大的加快了交通信控的发展,经过了周期信号控制,感应控制,自适应控制,乃至智能体控制。本论文简单的介绍了交通信控的发展史和交通拥堵产生的原因,主要讲述了如何利用VISSIM与VB语言平台搭建实现对十字路口信号灯进行控制的仿真系统,从而体现人机协作是根据目前我国城市发展特性,解决突发性交通拥堵的最简单有效的方法之一。  相似文献   

9.
大数据技术近年来发展迅速,上海城市交通的缓堵治理,在通过大数据的分析手段和实际应用后,在城市区域交通效率的提升,重要节点的拥堵治理方面取得了一定的成果.文章聚焦张江高科园区区域,利用大数据的手段,融合居民出行、交通流量、设施供应、违章信息等多元数据,针对园区日常拥堵点的分布、拥堵成因进行全新视角分析,探究张江高科园区交通拥堵特征,寻求交通缓堵治理的办法,为上海在全市其它重要区域的交通治理提供指导建议.  相似文献   

10.
王明起  刘晓燕 《职业时空》2009,5(8):144-145
针对石家庄城市交通管理宣传教育现状,提出了交通管理教育规划设计方案,对规划指标及近期、中期、远期的实施进行了深入分析,以期对当前我国类似城市的交通管理宣传教育有一定的借鉴意义。  相似文献   

11.
分析了公用事业由国有独资经营向公有制多种实现形式转化必须把握好的几个方面。同时,政府应加强对公用事业的宏观控制力。  相似文献   

12.
主要从思想建设、产业结构调整、城乡一体化方面探讨廊坊市抓住发展机遇,加快科学发展的思路。  相似文献   

13.
The purpose of this study is to examine the recognition of facial expressions of six emotions as a function of sex and level of education (high school, college, university) of the subjects. Three hundred French-speaking citizens of Quebec had to judge which emotion was expressed in various facial stimuli presented on slides. Results show that overall, the recognition of emotions was very good. However, there were significant and strong differences between emotions and sex and levels of education did not have strong effects on the results.This research was supported by grant EQ-1717 from Fonds FCAC (Gouvernment du Quebec).  相似文献   

14.
The idea of a community of learners is based on the premise that learning occurs as people participate in shared endeavors with others, with all playing active but often asymmetrical roles in sociocultural activity. This contrasts with models of learning that are based on one‐sided notions of learning— either that it occurs through transmission of knowledge from experts or acquisition of knowledge by novices, with the learner or the others (respectively) in a passive role. In this paper, I develop the distinction between the community of learners and one‐sided approaches from the perspective of a theory of learning as participation, and use two lines of research to illustrate the transitions in perspective necessary to understand the idea of communities of learners. One line of research examines differing models of teaching and learning employed by caregivers and toddlers from Guatemalan Mayan and middle‐class European‐American families; the other line of research involves a study of how middle‐class parents make a transition from their own schooling background to participate in instruction in a public US elementary school.  相似文献   

15.
中国经济崛起和城市化进程过程中农民工的贡献有目共睹,城市让生活更美好的诱惑使得中国的新老两代农民工从农村流入城市,2008年1月1日的《劳动合同法》和《劳动争议调解仲裁法》让社会看到了改善农民工权利状况的希望,然而新生代农民工的权利保护尤其是作为一名劳动者的权利保护的现状依然不如人意,没有救济的权利不是真正的权利、迟来的正义是非正义,每年岁末对于农民工权益的突击性保障并不能从根本上解决问题,把包括农民工权益保障的社会问题纳入法治框架内、通过探析新生代农民工权利阙如问题及原因进而发现从制度层面进行解决才是解决农民工权益保障问题的根本途径。  相似文献   

16.
学龄儿童健康行为研究越来越得到重视,在未来周期性的研究中也面临着在快速发展的背景下保持较高质量、在有限的财政资源情况下持续提高、使趋势分析与修改问卷内容相适应、满足科学受众和政策受众的不同要求等挑战,因此,完善其研究方法成为当前迫切需要。  相似文献   

17.
The purpose of this study was to determine the frequency of sexual abuse and depression among street children who live in a deprived district of Tehran. The researchers used the K-SADS questionnaire and a clinical interview were used to evaluate depression and sexual abuse in 87 street children in Tehran. Eighteen (20.9%) of the children had been sexually abused. Depressed children were 3.2 times more likely to be sexually abused than non-depressed children. Furthermore, 26 girls (86.7%) and 27 boys (48.2%) suffered from depression. The frequency of depression demonstrated a significant association with the father's or breadwinner's history of imprisonment or unemployment. Interventional programs providing education and support should be implemented for street children.  相似文献   

18.
This study looked for to lift information regarding laundries inserted in industries of animal products origin, to understand the activities developed in the section and to structure a Manual of Planning and Technical Information for laundries to industries of animal products origin, with the intention of subsidizing the planning, structuring and control of this work place, because norms or regulations that supervise don't exist or aid their managers and workers as for the operation of this work place.  相似文献   

19.
The authors reexamine the study of generational differences in adjustment among the children of immigrants by arguing that the country of origin defines and shapes the adaptation process across generations. Using a sample of children in Toronto, the authors demonstrate that generational differences in the mental health of children occur only in families from countries of origin at the lowest levels of economic development. Among those at the lowest levels of economic development, a mental health advantage in the first generation evolves to a disadvantage in the 2.5 generation relative to third or later generational children. Children from backgrounds characterized by higher economic development show no initial or eventual differences from the native born. Using data from the Toronto Study of Intact Families, the authors are able to explain differences among children from low economic development backgrounds specifically in terms of increasing family conflict and decreasing school involvement across generations.  相似文献   

20.
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