Abstract

Compared with medium-sized cities, megacities play an increasingly important role in the rapid urbanization process in China. Owing to the expanding scale of large cities, urban sprawl leads to unsustainable practices that cause ecological, social, and environmental problems. Urban planning and land use planning are major driving forces of land use and land cover change in China. However, the goals of these two types of planning are different, and coordinating them is a challenge for local government decision makers. Thus, we use the SLEUTH model to simulate the implementation scenarios of future urban growth in Nanjing in the Jiangsu province of China. Using the scientific simulation data of the model, we contrasted the alternative futures of the two planning types for local government decision makers to achieve sustainable urban planning. The objective of our study is to explore the problems and possible solutions for urban management in the context of a megacity in China. The results of our study confirm the value of SLEUTH, which provides extensive exploratory knowledge in evaluating the effects of possible local government decisions.

Abstract

International audience; The task of feeding cities is a challenge that nowadays all governments face, which involves the coordination of multiple producers, distributors, logistics operators and traders of perishable foods. With the increasing population in cities, more food and better freight transport systems are required. This takes a particular importance in cities and urban zones, since the growing population needs to be fed, but freight transport is often seen as creating nuisances such as congestion or pollution, among others. In this context, several cities started to think on how improve the city’s food supply system by combining proximity producers’ supply with advanced city logistics systems in order to decrease transport nuisances and improve the quality and sustainability of the food system.One of the possible actions is that of deploying proximity food hubs with a consequent urban food distribution system to supply the different urban zones of a city. However, this type of system is starting to be conceived and there is need of assessing the impacts of such alternative before thinking on its deployment possibilities. For this reason, this paper aims to propose a framework to assess different food delivery alternatives in the urban context focusing on a Food hub deployment and its impacts on urban development as a solution of urban consolidation center (UCC).The objective of this study is to enable municipalities to assess the consequences of food logistics flows centralization on an UCC-based food hub. Regarding the context of the research, the study focuses on a Food hub deployment to share the supplies for administrative restaurants of a city, following the sustainable food strategy of a French municipality. This municipality decided to show the example in terms of sustainable food supply and aims to increase the part of organic and local food for the administrative restaurants under its coordination. To do this, a specific food system needs to be conceived and assessed. To assess the suitability of such systems, it will be necessary to model both the demand and the logistics supply, to define the main indicators of sustainability and their estimation methods, then to construct the scenarios to assess and finally make the corresponding analyses. Document type: Part of book or chapter of book

Abstract

A new round of regional planning was conducted from 2014 to 2016 by the provincial government of Guangdong, providing an overview of the regional transportation development and history. Major problems in the Pearl River Delta (PRD) railway network are identified: the inconsistencies between railway planning and land use, lack of transit-oriented regional policy, issues regarding the competition and compatibility of different methods of transportation by rail. This paper incorporates the following solutions which include direct connection of major regional business centers,  improve railway and land use synergy, integrate railway and underground subway system and also discusses the future of railway transportation in densely populated areas. Document type: Article