大城市交通可持续发展动力机制及优化决策模型探讨

大城市交通是一个多级双向控制系统,本文首先提出城市交通可持续发展的目标,探讨了城市交通可持续发展的动力机制,然后以可靠度作为解藕参数,以成本作为协调参数,构造了大城市交通可持续发展的分级优化决策模型,并对北京市2015年交通结构进行了优化决策模拟。最后,提出了我国大城市交通可持续发展的对策建议。     

乡村产业地域分异格局研究——以南京都市圈典型区域为例

本文以南京都市圈"东山—茅山"样带作为研究区域,基于乡村产业POI数据,利用圈层分析、核密度分析等方法,对乡村产业及其多样性分异格局进行研究.结果表明,当前农旅、文创等新产业新业态开始在乡村布局,在近郊区和乡镇中心周边组团集聚、沿交通放射布局特征明显,总体上呈现"距离衰减"趋势,且不同产业分布存在明显差异.分类研究发现...     

A CITY IN MOTION: TIME-SPACE ACTIVITY AND MOBILITY PATTERNS OF SUBURBAN INHABITANTS AND THE STRUCTURATION OF THE SPATIAL ORGANIZATION OF THE PRAGUE METROPOLITAN AREA

This contribution attempts to reveal the relations between new suburban areas and other parts of the Prague metropolitan area by investigating the time‐space activity and mobility patterns of the inhabitants of newly built suburban districts. The focus on some aspects of the everyday life of people in new suburbs helps us to identify the impact of suburbanization on the changing geography of the metropolitan region and to better understand how the spatial organization of the Prague metropolitan area is produced, reproduced and transformed. We use several interrelated concepts, which serve the theoretical foundation of our work, namely time geography, structuration theory and the post‐communist city. The empirical data utilized are primarily based on 262 diaries completed by eighty‐eight individuals from thirty‐eight households, accompanied by household questionnaires and interviews with the heads of households. The research confirmed the implicit, generally unspoken view that new suburbs in the Prague metropolitan region are heavily dependent on the core of the metropolitan area for the provision of jobs and services. However, newly built suburban shopping facilities to some extent disrupt this pattern, keeping some daily activities of inhabitants within the suburban zone. In addition to empirical observations, the key purpose of this contribution has been to discuss and apply time geography concepts and methods to the research of urban restructuring, and to understand the structuration of metropolitan spatial organization.     

Hope’s Work

This article, given as the Antipode RGS‐IBG Lecture on 28 August 2019, argues that hope can be found through training an attentiveness to the social world in troubled times. Hope then is an empirical question and a matter of documenting hopeful possibilities that often otherwise remain unremarked upon. In this sense “worldly hope” draws possibilities that are manifested in the social world and stands in contrast to cruel forms of optimism or an unrealistic faith in future progress. An argument for such an approach to hope and trouble is developed through two examples drawn from contemporary London life, namely, the silent walks at Grenfell Tower in West London and a community arts project in Bellingham, South East London.     

Contrasts between first-tier and second-tier cities in Europe: a functional perspective

Second-tier cities have been experiencing renewed interest within policy and research contexts, which is reversing a tradition of relative neglect due to the long-standing focus on large cities and capitals. This paper compares European second-tier and first-tier cities with regard to the presence of urban functions and how these are spread over their urban regions. The analysis shows the existence of a substantial ‘first city bonus’: a surplus of urban functions in first-tier cities which cannot be explained by their size or network embeddedness. We also show that second-tier cities are better served with urban functions in the absence of a dominant capital. In first-tier urban regions, the core municipality exploits the critical mass of the urban region to support its own functions, leaving that region functionally underserved. Second-tier cities lack this absorptive capacity, and their urban regions are endowed with more urban functions. These functional differences mean that second-tier cities demand a differentiated research and policy approach, in which city-regional integration becomes an important territorial development strategy. Rather than the dispersion process in first-tier cities leading to a ‘regionalization of the city’, integration in second-tier urban regions may be seen as a process of ‘citification of the region’.     

The role of exogenous and endogenous factors in the growth of regions in Central and Eastern Europe: the metropolitan/non-metropolitan divide in the pre- and post-crisis era

ABSTRACT

The aim of the paper is to analyse regional growth factors in Central and Eastern European Countries in the pre- and post-crisis era. The comparison is focused on core (metropolitan) and non-core (non-metropolitan) regions. The study found that the development processes of the analysed groups of regions were in many respects similar. Achieving a high level of development in the context of post-socialist transformation was possible mainly owing to exogenous factors such as the influx of foreign direct investment (FDI) and multimodal transport accessibility. In the case of endogenous factors, the number of small- and medium-sized enterprises per capita was of cardinal importance for a high level of development, but it was no guarantee of fast growth dynamics in non-core regions. The main differences between the core and non-core regions included the role of human capital and migrations as metropolitan regions represented growth poles which trained qualified specialists and served as destinations for migrants from non-core regions. However, the share of people with tertiary education played an important role in the development process of non-core regions. The crisis strengthened the role of exogenous growth factors, that is, the role of FDI inflow as well as the role of EU funds.     

新经济时代我国特大城市发展与空间组织

新经济的发展将会全面提升我国特大城市的发展,影响城市的空间组织。本文认为,新经济对我国特大城市发展的主要影响有:促进城市的产业结构提升;促进新经济时代的城市基础设施"数字城市"的建设;促进城市创新环境--生产服务业发展。在新经济推动下,建立有效的知识通道将成为我国特大城市空间组织的一个重要原则,因此,知识源的选择、知识传导的路径及通道,知识使用地的吸引构造以及与软要素构成创新环境的规划、协调、共生将成为城市规划的重要研究课题。     

都市区与非都市区的城镇用地增长特征:以长三角地区为例

作为人口与经济活动高度集聚的地区,都市区地域的发展和空间结构特征引起了大量关注。本文以长三角两省一市地区221个区县单元为研究对象,在划分都市空间单元类型的基础上,考察都市区与非都市区以及各类型都市区之间城镇工矿用地增长的差异,并据此探讨在我国特殊经济社会环境下都市区地域的空间发展规律。研究发现,不同地域单元在中心-外围关系上存在差异,都市区进入了均衡扩散阶段而非都市区以中心城市极化为主,孤立都市区的扩散效应较弱,非都市区地域的县域单元受到临近都市区的影响而呈现出不同的城镇工矿用地扩展特征。都市连绵区内不同亚区域存在发展阶段与空间关系上的差异,加剧了都市连绵区空间结构的复杂性。来自中心城市、外资拉动、县域经济内生的多重力量推动都市地域呈现独特的空间规律。     

武汉市24小时自助图书馆设立的空间效应研究

以武汉市中心城区为研究范围,综合运用核密度估计法、Ripley's L函数、标准差椭圆、Voronoi多边形和空间句法,系统分析武汉市24小时自助图书馆设立的空间效应,包括整体空间效应、服务范围及服务人口效应、可达性及穿行性效应。结果表明,24小时自助图书馆的设立:1使图书馆由单一集聚核心向多集聚核心转变,使图书馆空间集聚程度加强,整体呈现出"大分散,小集聚"的空间分布特征,空间分布方向向"E-W"方向顺时针旋转;2使图书馆的服务范围缩小,服务人口压力减小,但其长尾效应有待进一步发挥;3使图书馆的可达性略有提高,但使其穿行性显著增强,正在从根本上将读者获取图书资源的方式由"读者围着资源移动"转变为"让资源围着读者移动"。     

明清时期长江武汉段江面的沙洲演变

本文论述了明清时期今长江武汉段江面上近武昌江岸和近汉阳江岸的沙洲演变,认为江中的沙洲变迁在东、西两岸大致经历了鹦鹉洲(偏东岸)、刘公洲(偏西岸)、金沙洲(偏东岸)、新刘公洲(偏西岸)、白沙洲(偏东岸)、新鹦鹉洲(偏西岸)、新白沙洲(偏东岸)这一交替出现及消亡或并岸的过程;并指出沙洲演变与港口变迁及商业市集贸易、南北两岸岸线及城垣堤防之间的关系,以及由此导致的东西两岸在经济利益和城垣堤防上的矛盾和冲突等一系列问题。