The post-earthquake emergency period,which is a sensitive time segment just after an event,mainly focuses on saving life and restoring social order.To improve the seismic resilience of city road networks,a resilience ...The post-earthquake emergency period,which is a sensitive time segment just after an event,mainly focuses on saving life and restoring social order.To improve the seismic resilience of city road networks,a resilience evaluation method used in the post-earthquake emergency period is proposed.The road seismic damage index of a city road network can consider the influence of roads,bridges and buildings along the roads,etc.on road capacity after an earthquake.A function index for a city road network is developed,which reflects the connectivity,redundancy,traffic demand and traffic function of the network.An optimization model for improving the road repair order in the post-earthquake emergency period is also developed according to the resilience evaluation,to enable decision support for city emergency management and achieve the best seismic resilience of the city road network.The optimization model is applied to a city road network and the results illustrate the feasibility of the resilience evaluation and optimization method for a city road network in the post-earthquake emergency period.展开更多
Laiwu,a developingindustrial city in the middle eastof Shandong Province,is situatedat the eastern foot of Mount Taiand is known for its steel andcoal production.Covering an areaof 2,239 square kilometres,ithas two di...Laiwu,a developingindustrial city in the middle eastof Shandong Province,is situatedat the eastern foot of Mount Taiand is known for its steel andcoal production.Covering an areaof 2,239 square kilometres,ithas two districts, Laicheng andGangcheng, and 30 towns underits jurisdiction with a populationtotalling 1.2 million.展开更多
This study is an ongoing interdisciplinary collaboration, which discusses possible emerging forms of sustainable urbanismin the 21st century. The idea of sustainable urbanism is examined in this paper in more than env...This study is an ongoing interdisciplinary collaboration, which discusses possible emerging forms of sustainable urbanismin the 21st century. The idea of sustainable urbanism is examined in this paper in more than environmental andecological aspects, to highlight the emergent forms of urbanism based on new paradigms that inform on the shape ofcities to come. The two case studies discussed embody complex topics of design, dwelling, community in space, buildingtechnologies, environmental strategies, as well as models of affordability. At the same time, new trajectories in thedevelopment of sustainable urban housing are explored. It is based on the following case studies:Case Study 1: The new city district of Vauban Freiburg, in Germany, describes the guiding principles and theirimplementation in the planning and design of this new major development: Vauban comprises 2,000 homes to house5,000 people, as well as business units to provide about 500 to 600 jobs.Case Study 2: solarCity Linz, in Austria, currently comprises about 1,300 homes and 3,000 inhabitants. It wasdesigned as a fl agship development for renewable energies in urban design and includes projects by architects likeFoster and Partners, Richard Rogers, and Thomas Herzog. Construction time of the nucleus of solarCity took placefrom 1995 to 2005.展开更多
The relations among the establishment of Coalition Emergency Response System （CERS）, city security and city sustainable development are analyzed in the article. According to the relation analysis, it is concluded th...The relations among the establishment of Coalition Emergency Response System （CERS）, city security and city sustainable development are analyzed in the article. According to the relation analysis, it is concluded that cities should build up their CERS to deal with the thread of damage in China. The recommendations about the establishment of the system are also provided.展开更多
Ⅰ. WHAT’S CERSThe City Emergency Response System (CERS) is a comprehensive system that provides the emergency relief and services for the citizen through an integrated communication and IT platform. With CERS, the
The construction of emergency water sources is the material basis for ensuring urban water safety,and it is also an inherent requirement for maintaining social stability and development.The hydrogeological characteris...The construction of emergency water sources is the material basis for ensuring urban water safety,and it is also an inherent requirement for maintaining social stability and development.The hydrogeological characteristics of groundwater in Luoyang City from the aspects of the division of groundwater aquifer groups,water yield property and groundwater dynamics were described in this paper.Two emergency water sources were selected on basis of comprehensively considering groundwater resources and ecological environmental effects,groundwater quality and exploitation technology,etc.Then it further analysed the aquifer types,water yield properties and groundwater recharge,runoff and discharge conditions of the two emergency water sources,and evaluate the groundwater resources quantity of the water sources.The results are that the shallow underground aquifer in Luoyang City is thick,coarse,and stable in lithology and thickness.The two water sources enjoy good exploitation potential and can be used as backup water sources to supply water in the event of a water source crisis.展开更多
With the rapid development and application of cloud computing,big data,artificial intelligence,5G,satellite communication,blockchain and other emerging information technologies,conditions have been provided for the in...With the rapid development and application of cloud computing,big data,artificial intelligence,5G,satellite communication,blockchain and other emerging information technologies,conditions have been provided for the intelligent development of urban rail vehicles.With the development of smart urban rail vehicles,the standards system of traditional urban rail vehicle cannot meet the development requirements,so it is necessary to study and reconstruct the standards system.To embody the intelligent level of urban rail vehicles,the paper conducts the research on the standards for the urban rail vehicle train control system,monitoring and diagnosis system,passenger service system,and then proposes the overall architecture and standard list of smart city rail vehicle technical standards system,providing reference for the planning and establishment of China's smart city rail standards system.展开更多
基金National Natural Science Foundation of China under Grant Nos.U1939210 and 51825801。
文摘The post-earthquake emergency period,which is a sensitive time segment just after an event,mainly focuses on saving life and restoring social order.To improve the seismic resilience of city road networks,a resilience evaluation method used in the post-earthquake emergency period is proposed.The road seismic damage index of a city road network can consider the influence of roads,bridges and buildings along the roads,etc.on road capacity after an earthquake.A function index for a city road network is developed,which reflects the connectivity,redundancy,traffic demand and traffic function of the network.An optimization model for improving the road repair order in the post-earthquake emergency period is also developed according to the resilience evaluation,to enable decision support for city emergency management and achieve the best seismic resilience of the city road network.The optimization model is applied to a city road network and the results illustrate the feasibility of the resilience evaluation and optimization method for a city road network in the post-earthquake emergency period.
文摘Laiwu,a developingindustrial city in the middle eastof Shandong Province,is situatedat the eastern foot of Mount Taiand is known for its steel andcoal production.Covering an areaof 2,239 square kilometres,ithas two districts, Laicheng andGangcheng, and 30 towns underits jurisdiction with a populationtotalling 1.2 million.
文摘This study is an ongoing interdisciplinary collaboration, which discusses possible emerging forms of sustainable urbanismin the 21st century. The idea of sustainable urbanism is examined in this paper in more than environmental andecological aspects, to highlight the emergent forms of urbanism based on new paradigms that inform on the shape ofcities to come. The two case studies discussed embody complex topics of design, dwelling, community in space, buildingtechnologies, environmental strategies, as well as models of affordability. At the same time, new trajectories in thedevelopment of sustainable urban housing are explored. It is based on the following case studies:Case Study 1: The new city district of Vauban Freiburg, in Germany, describes the guiding principles and theirimplementation in the planning and design of this new major development: Vauban comprises 2,000 homes to house5,000 people, as well as business units to provide about 500 to 600 jobs.Case Study 2: solarCity Linz, in Austria, currently comprises about 1,300 homes and 3,000 inhabitants. It wasdesigned as a fl agship development for renewable energies in urban design and includes projects by architects likeFoster and Partners, Richard Rogers, and Thomas Herzog. Construction time of the nucleus of solarCity took placefrom 1995 to 2005.
文摘The relations among the establishment of Coalition Emergency Response System （CERS）, city security and city sustainable development are analyzed in the article. According to the relation analysis, it is concluded that cities should build up their CERS to deal with the thread of damage in China. The recommendations about the establishment of the system are also provided.
文摘Ⅰ. WHAT’S CERSThe City Emergency Response System (CERS) is a comprehensive system that provides the emergency relief and services for the citizen through an integrated communication and IT platform. With CERS, the
基金The study was supported by the China Geological Survey Geological Survey Project(12120113004600).
文摘The construction of emergency water sources is the material basis for ensuring urban water safety,and it is also an inherent requirement for maintaining social stability and development.The hydrogeological characteristics of groundwater in Luoyang City from the aspects of the division of groundwater aquifer groups,water yield property and groundwater dynamics were described in this paper.Two emergency water sources were selected on basis of comprehensively considering groundwater resources and ecological environmental effects,groundwater quality and exploitation technology,etc.Then it further analysed the aquifer types,water yield properties and groundwater recharge,runoff and discharge conditions of the two emergency water sources,and evaluate the groundwater resources quantity of the water sources.The results are that the shallow underground aquifer in Luoyang City is thick,coarse,and stable in lithology and thickness.The two water sources enjoy good exploitation potential and can be used as backup water sources to supply water in the event of a water source crisis.
基金the Major Science&Technology Development Project of China CRRC in 2022.Project number:2022CKA054。
文摘With the rapid development and application of cloud computing,big data,artificial intelligence,5G,satellite communication,blockchain and other emerging information technologies,conditions have been provided for the intelligent development of urban rail vehicles.With the development of smart urban rail vehicles,the standards system of traditional urban rail vehicle cannot meet the development requirements,so it is necessary to study and reconstruct the standards system.To embody the intelligent level of urban rail vehicles,the paper conducts the research on the standards for the urban rail vehicle train control system,monitoring and diagnosis system,passenger service system,and then proposes the overall architecture and standard list of smart city rail vehicle technical standards system,providing reference for the planning and establishment of China's smart city rail standards system.
