Modeling urban redevelopment:A novel approach using time-series remote sensing data and machine learning

Accurate mapping and timely monitoring of urban redevelopment are pivotal for urban studies and decisionmakers to foster sustainable urban development.Traditional mapping methods heavily depend on field surveys and subjective questionnaires,yielding less objective,reliable,and timely data.Recent advancements in Geographic Information Systems(GIS)and remote-sensing technologies have improved the identification and mapping of urban redevelopment through quantitative analysis using satellite-based observations.Nonetheless,challenges persist,particularly concerning accuracy and significant temporal delays.This study introduces a novel approach to modeling urban redevelopment,leveraging machine learning algorithms and remote-sensing data.This methodology can facilitate the accurate and timely identification of urban redevelopment activities.The study’s machine learning model can analyze time-series remote-sensing data to identify spatio-temporal and spectral patterns related to urban redevelopment.The model is thoroughly evaluated,and the results indicate that it can accurately capture the time-series patterns of urban redevelopment.This research’s findings are useful for evaluating urban demographic and economic changes,informing policymaking and urban planning,and contributing to sustainable urban development.The model can also serve as a foundation for future research on early-stage urban redevelopment detection and evaluation of the causes and impacts of urban redevelopment.

Redevelopment Strategies of Tourism Landscape Resources in Ancient Villages of Southern Anhui Province

The ancient villages in southern Anhui Province are the cradle of Hsin-an Culture, where natural and cultural resources form the distinctive tourism resources. The paper elaborates the kinds of tourism landscape resources in ancient villages in southern Anhui, analyzes the existing problems during the current development process, suggests the principles of redevelopment and the reconstruction form of tourism products and finally attempts to discuss its future development models.

Brownfield Redevelopment Toward Sustainable Urban Land Use in China

Brownfield redevelopment is a new urban land use strategy to pursue the ideal of sustainable development. It relieves environmental pressure and resolves the glaring contradiction between urban land idleness and urban sprawl. It addresses issues of urban land use and farmland protection in China. This paper compares brownfield with greenfield, and defines brownfield and its redevelopment. It elaborates general and special government policies for this sustainable land use strategy in the context of China. General policies contain two aspects: clarifying brownfield redevelopment's priority in Chinese urban planning and land use and setting a general quantitative redevelopment target. The extent of the government's special policies, which aim at coordinating three factors in the redevelopment process, namely govern- ments, developers and users, are divided into five areas: statistics and categorization, assessment and remediation, fi- nancial supports and tax incentives, environmental and legal liability, and publicity and guidance. The paper concludes the major functions of different levels of Chinese government in the redevelopment process, i.e. making general strategy, formulating legislation, spectifying regulations and technical standards, estimating and categorizing brownfield sites, drawing up brownfield planning, providing information and financial support, guiding developers, publicizing the strategy to the public, and checking reuse results.

Socioeconomic impact of urban redevelopment in inner city of Ningbo

Since market-oriented economy reform, China has experienced significant changes in urban landscapes and the internal structure of cities. Housing marketization provides an opportunity for households to choose their residences. However, not all households benefit equally from residential relocation. Residential relocation in urban China has relatively strong association with the household’s position within the spectrum from state redistribution to market reward than with life cycles and consequent adjustment of housing demand, which are the primary reasons for residential mobility in a mature market. In this research we focused on social aspects, mainly relating to the impact of urban redevelopment in inner city of Ningbo and the resultant potential housing problem. This research is based on a questionnaire survey that was conducted in three neighborhoods redeveloped at different time periods in the past fifteen years. The findings suggest that new strategy of redevelopment of the integrated envi-ronment of the old city while still improving the living condition for its residents can be heard due to the efforts of many people at various positions. Yet, many things need to be done to change people’s ideas: information and education through newspapers, academic discussions through academic journals, conferences, and reports to decision makers.

Spatial restructuring and the logic of industrial land redevelopment in urban China: Ⅳ. A case study of jointly redevelopment by multi-actors

Within the inventory era, urban shrinkage characterized by economic decline and space decay has been widely witnessed in China. The modes and trajectories of urban redevelopment have thus become areas of major concern for both policymakers and scholars. Taking the multi-actor participation nature of redevelopment, this paper stemming from the game-theoretical approach demonstrates in empirical terms on two major fronts. First, the redevelopment of industrial land without the transfer of land use right is shown to be deadlocked by the incapacitation of the original land-user and unlocked with the participation of the new developer. Second, the preference of the original land-user to maximize its interests by operating by itself rather than continue to cooperate with the new developer is observed in the post-redevelopment stage. Therein, the entrepreneurial local government acts only as a “mediator” between the two market entities and tends not to directly intervene in their cooperation. Thus that, it is the reasonable distribution of potential benefits or the pricing of different rights in the land property right bundle rather than their definition that matters more for land redevelopment. Because the delineation of land property rights has never been a problem in a mature land market, particularly for stock industrial land.

Redevelopment of Daqing Oil Field distributed earthquake disaster reduction system skeleton

Through investigation on the international development trend of earthquake disaster reduction system(EDRS)researches,a well finished Daqing Oilfield EDRS is introduced.Based on the PC System,redevelopment of the EDRS skeleton is well discussed,including the technical skeleton,function composition,structures of software and hardware,redevelopment languages,database,and remote linking and calling of analysis modules.Meanwhile,it is pointed out that extending and utilizing the function of remote sensing information on the basis of the current distributed EDRS skeleton will become another study direction of EDRS.

Urban Redevelopment, Gentrification and Gentrifiers in Post-reform Inland China: A Case Study of Chengdu, China

Since its process evolved in recent years, the definition of gentrification has expanded to cover different forms of social upgrading, new spaces and new actors around the world. Studies on gentrification in Chinese cities began to take off in the 2000 s. However, they all mainly focused on the newly emerging global cities and there has been a lack of investigation on provincial cities. Furthermore, discussions on gentrifiers′ profiles and their motivations for housing choice are absent from literature on Chinese gentrification. Therefore, this paper aims to assess the relevance of the broad definition of gentrification in provincial Chinese cities through empirical research on urban redevelopment projects in Chengdu, and to examine the characteristics of gentrifiers(as new incoming residents) in it. The results show the rationality of gentrification processes as urban redevelopment in Chengdu, and reveal original outcomes on the corresponding gentrifiers′ profiles and the motivations behind their housing choice, which are different from the general features of gentrifiers in standard Western gentrification research.

Provably Secure APK Redevelopment Authorization Scheme in the Standard Model

The secure issues of APK are very important in Android applications.In order to solve potential secure problems and copyrights issues in redevelopment of APK files,in this paper we propose a new APK redevelopment mechanism(APK-SAN).By exploring sanitizable signature technology,APK-SAN allows the original developer to authorize specified modifier who can redevelop the designated source code of APK files.Our scheme does not require interactions between the developer and modifiers.It can reduce the communication overhead and computational overhead for developers.Especially,the signature of redeveloped APK files is valid and maintains the copyrights.The proposed APK-SAN signature can effectively protect the security of the redeveloped APK files and copyrights of the developer and modifier.

Evolution of Transitional Institutions for Urban Land Redevelopment in China——Case in Guangzhou

Building effective institutions for markets is a great challenge to China's transitional economy. China's experience in establishing urban land markets is characterized by trial and error and the gradual evolution of transitional institutions. Based on archive data and interviews in a neighborhood(Jinhuajie) of Guangzhou,this research reveals that China's land redevelopment in the past two decades has followed an approach of partial and gradual reform,which was structured by the gradual evolution of transitional institutions to speed up local land redevelopment within the existing property rights system. Transitional institutions,including highly compensated residents' land use rights,in-kind land lease payment,flexible control on development rights of developers and short-term actual ownership of work units,are generated by the local government sequentially to dispel existing land use rights of different land users and make further development be able to follow market mechanisms.

Dilemma for the Redevelopment of Village and Town Construction Land, Formation Mechanism and Policy Suggestions

Under the context of economy new normal and rapid urbanization, the shift of economic growth, structural adjustment pains as well as pre-stimulus digestion comes coincidentally. The boundary red line of urban growth, the red line of the number of basic farms and the ecology red line makes the local to conserve land. Land stock for village and town construction is a huge amount of potential resources. Redevelopment of land for village and town construction provides ensured land security for the smooth progress of urbanization. Combining village and town construction land use characteristics and making in-depth analysis of the difficulties in the redevelopment of village and town construction and its inner mechanism, policies and suggestions were proposed for the redevelopment of village and town construction land in terms of land property, land price, market allocation, planning, surveillance and so on, so as to provide valuable reference for the smooth redevelopment of village and town construction land, and the system design of villages and towns.

Mode and Mechanism of Urban Land Redevelopment

On the basis of summarizing and appraising the mode and mechanism of land redevelopment in urban regeneration in China’s transitional period,the relationship between land redevelopment system and urban regeneration is analyzed from the perspective of land system,and then the cooperative mechanism of urban regeneration and land redevelopment is recommended for promoting the development of urban regeneration.

Application of CAD redevelopment in process design of stepping-mode laser blanking

To design a stepping-mode laser blanking process,in this study,CAD software was redeveloped based on VBA and a computer interface was established in the process design system. The program employs the modularization method to perform functions including one-key initialization of the process planning environment,creation and deletion of blanking steps,automatic identification of belt coordinates,recognition of the number of blanking steps in each domain,and the output and import of process data. The difficult problem of recognizing CAD block references with the same name in the automatic acquisition of belt coordinates is solved using the selection sets method,which greatly improves the efficiency of the process design,while also guaranteeing rapid development of the flexible data mold in stepping-mode laser blanking.

Urban Redevelopment and Rehabilitation for Detroit

Detroit has been one of the leading cities in the 20th century in the US. Manufacturing, especially, automobile industry created and continued the thriving economy in Detroit, MI in the early to mid-1900s. When outsourcing impacted the industry, people began to leave the city. That turned into a demographic catastrophe in Detroit. Economy had continuously fallen and many of the properties were foreclosed. After the housing market crash in 2008, a big economic crisis effected all country. After such a strong economic crisis, Detroit has been desperately in need of economic revival which has begun to turn around very slowly in last 10 years. In this paper, Detroit has been investigated through the experienced constructional problems. Sustainable solutions for Detroit are discussed in a broader aspect. The main purpose of the research is to understand the current problems in construction in Detroit after a decade of the economic crisis and bring sustainable solutions for urban redevelopment and rehabilitation for Detroit. Paper also details the problems in Detroit area, reasons behind the complications, components/parameters, constraints/limitations, solutions, people involved and expected results.

GM Site in the City of Lansing (Capital of Michigan State,U.S.) Redevelopment Proposal

This article is about the redevelopment proposal of GM site (Closed General Motors (GM) Plant—part of the Lansing Car Assembly Plant) in the City of Lansing, capital of Michigan State, and the final proposal is a Mixed-use Redevelopment. As an integrated and feasible research report, it is composed of eight parts: Site Analysis, Project Concepts or Ideas, Public Interest & Involvement, Feasibility Study and Financial Report, Market Analysis and Marketing Plan, Implementation, Property, Asset and Portfolio Management, and Reversion Plan.

Evaluation of urban redevelopment impact on non-motorized traffic

As an important component of city evolution, urban land redevelopment has an impact on transportation system. The current traffic impact analysis （TIA） is lack of a comprehensive component for non-motorized transportation under redevelopment. For a better guidance of land redevelopment and non-motorized transportation planning, it is necessary to evaluate the negative impact of redevelopment on non-motorized traffic in the TIA. In this paper, an evaluation framework for the impact analysis is built up. We organized the pro- cedures and components of impact evaluation, and proposed the corresponding qualitative and quantitative evaluation indicators for non-motorized traffic under redevelopment. Level of service （LOS） and its criterion are employed for external impact evaluation, and level of safety, convenience, independence, and comfort which are four aspects of quality of service （QOS） are proposed to analyze the internal impact. The framework is applied to a redevelopment study in Shanghai, China. The case study results indicate that the rede- velopment from a residential area to a mixed commercial area has a significant impact on non-motorized traffic. The potential negative impact from both external and internal traffic can be minimized by reasonable improvements in the internal land use design.

A structural project： Redevelopment of the historic center of Wuhu

Restoration and redevelopment are difficult when traces of things that require preservation have been minimized. Such operations are even more complex whenever a portion of an ancient city is involved. This essay describes the redevelopment project of the historic center of Wuhu through the different themes raised during the drafting of the project： from the cultural opportunity of a wide reconstruction work, to the definition of the main design strategies, and the question of memory and identity. The results show that the field of intervention in this project is broader than that of most restoration projects, that is, an evolving city center, which is impossible to consider with traditional restoration parameters or with pure conservation. The only possibility of interven- tion is on the city structure, which allows the city to develop itself continuously within a welt- defined system of rules.

Reconstructing Social Capital to Promote Urban Redevelopment:A Case of Lianjiao Area in the Pearl River Delta Region

Guangdong Province started the so-called"three olds redevelopment"in 2009,aiming to advance industrial upgrading.Existing literature points out that appropriate distribution of land rent differential among the stakeholders like urban governments,village collectives,and developers is the most important determinant.Employing the theory of urban regime,the paper focuses on the redevelopment process of the Lianjiao Area in the Pearl River Delta region to reveal how the three entities(government,rural community,and developers)interact.It has been found that the local urban government is the main driver which facilitates the positive accumulation of social capital through the supply of redevelopment policy and fi nancial support.Through the reconstruction of trust of villagers and developers,the government gains the rights to coordinate the redevelopment.As the actual landholder,rural villages represent the profi ts of villagers in bargaining with the other two parties.The improvement in infrastructure and the formulation of detailed redevelopment plans increase the land rent differential,encouraging developers’participation in the redevelopment.The three entities form a negotiation-based development alliance and fi nally lead to successful redevelopment.

Brownfield Redevelopment Based on Theories of Urban Regeneration and Landscape Urbanism:A Case Study on Changchun Tractor Factory

Urban development and construction has led to a series of problems,such as the deficiency of land resources,difficulty in old city renovation,and backward landscape construction,etc.Brownfield refers to the abandoned and polluted lands of industrial,commercial,or other uses,whose redevelopment can not only effectively stimulate the intensive utilization of urban lands and the growth of urban economy,but also improve the quality of the urban ecological environment.Considering that the research on brownfield redevelopment methodologies in China is still at its initial stage,the application of the theories of urban regeneration and landscape urbanism in brownfield redevelopment will be conducive to solving various urban problems and promoting brownfield land use values.This paper,based on an analysis on the theoretical connotations of urban regeneration and landscape urbanism and their infl uences on brownfi eld redevelopment,argues that the urban regeneration theory can serve as the"framework"while the landscape urbanism theory as"skeleton"of brownfi eld development,both of which can integrally form the"organic body of brownfi eld redevelopment."It further puts forward fi ve primary principles for brownfi eld redevelopment which are elaborated through a case study on Changchun Tractor Factory.

Measuring residents’ anxiety under urban redevelopment in China: An investigation of demographic variables

Residents’concerns and feelings play pivotal roles in smoothly promoting urban redevelopment.Anxiety,as an intuitive feeling toward uncertainties,generally exists among residents who are confronted with redevelopment,and this feeling has gradually attracted scholars’attention.However,relatively few studies have focused on the multidimensional view of this concept and its influencing factors.Drawing upon a large-scale questionnaire survey conducted in 13 pilot areas in China,this study refines and verifies five prominent dimensions of anxiety,namely,housing conditions,monetary compensation,public services,life adaptation,and public participation level,through factor analysis and one-sample/-test.The finding contributes to achieving a complete understanding of anxiety,and the scales developed for measuring these dimensions lay the foundation for further empirical studies on anxiety.The individual and collective effects of age,job,and region variables on anxiety dimensions are demonstrated via independent-sample/-test and analysis of variance,which clarifies the formation process of anxiety and highlights the importance of these contextual variables.Tailored strategies for policymaking and engineering management,including establishing reasonable compensation standards,providing equal public services,and delivering highquality housing,are proposed to relieve residents5 anxiety.These strategies are expected to consider further the sensitive group,such as the elderly,farmers,and casual workers.

Theory and Countermeasures on Stakeholder Governance in Redevelopment of Urban Villages

While urban villages are combinations of interests of different stakeholders,the redevelopment of urban villages is the benefit rearrangement among these stakeholders,whose target is to create values for all stakeholders and the society effectively.The principle of urban village redevelopment is to meet the multiple requirements of all stakeholders and balance the benefits of the dynamic environment.This paper discusses the utilization of theory of stakeholder governance amid urban village redevelopment.It proposes a "four in one" benefit coordination mechanism from the view of city planning.Some valuable policy suggestions on that are also put forward at last.