针对城市交通基础设施数据采集中的瓶颈问题,对个人数字助理(persona l d ig ita lass istan t,PDA)在交通基础设施数据采集中的应用进行研究,从数据结构和软件结构两方面进行分析,介绍基于PDA的数据采集系统软件的开发和应用,该系统已...针对城市交通基础设施数据采集中的瓶颈问题,对个人数字助理(persona l d ig ita lass istan t,PDA)在交通基础设施数据采集中的应用进行研究,从数据结构和软件结构两方面进行分析,介绍基于PDA的数据采集系统软件的开发和应用,该系统已在我国各大城市的城市交通基础设施的数据采集中得到应用。展开更多
Urban eco-environmental degradation is becoming inevitable due to the extensive urbanization, popula- tion growth, and socioeconomic development in China. One of the traffic arteries in Shenzhen is an urban expressway...Urban eco-environmental degradation is becoming inevitable due to the extensive urbanization, popula- tion growth, and socioeconomic development in China. One of the traffic arteries in Shenzhen is an urban expressway that is under construction and that runs across environmentally sensitive areas （ESAs）. The environmental pollution from urban expressways is critical, due to the characteristics of expressways such as high runoff coefficients, considerable contaminant accumulation, and complex pollutant ingredi- ents. ESAs are vulnerable to anthropogenic disturbances and hence should be given special attention. In order to evaluate the environmental sensitivity along this urban expressway and minimize the influences of the ongoing road construction and future operation on the surrounding ecosystem, the environmental sensitivity of the relevant area was evaluated based on the application of a geographic information sys- tem （GIS）. A final ESA map was classified into four environmental sensitivity levels; this classification indicates that a large proportion of the expressway passes through areas of high sensitivity, representing 11.93 km or 52.3% of the total expressway, and more than 90% of the total expressway passes through ESAs. This study provides beneficial information for optimal layout schemes of initial rainfall runofftreatment facilities developed from low-impact development （LID） techniques in order to minimize the impact of polluted road runoff on the surrounding ecological environment.展开更多
This research aimed to determine instruments for analysis of knowledge management in operators companies of metropolitan transport systems. How much the goal was an exploratory research, how much the procedure was a l...This research aimed to determine instruments for analysis of knowledge management in operators companies of metropolitan transport systems. How much the goal was an exploratory research, how much the procedure was a literature search, how much as nature was an applied research, and how much as approach was qualitative research？ The following instruments were identified and selected： （a） the methodology for the analysis of metropolitan transport systems; （b） the knowledge management maturity model （Siemens）; and （c） Documentation and Information Centre. The simulation, using the tools in the knowledge management to analyze the Company Metropolitan of S^io Paulo--METRO, identified the need for improvements in eight areas and the problems： （1） rethink the knowledge management area; （2） develop new knowledge management policies; （3） define responsibilities in knowledge management area; （4） implement new knowledge management processes; （5） explore new ways and structures of knowledge; （6） consider the internal and external actors in knowledge management actions; （7） expand the dissemination of the collaborative culture; and （8） integrate in the knowledge management area current and future initiatives. The analysis shows that the transposition of the current situation to the desired situation for the company can be obtained with the implementation of an Information and Documentation Centre. The conclusion is that this set of tools allows to characterize, evaluate, and model the knowledge management in this business.展开更多
文摘针对城市交通基础设施数据采集中的瓶颈问题,对个人数字助理(persona l d ig ita lass istan t,PDA)在交通基础设施数据采集中的应用进行研究,从数据结构和软件结构两方面进行分析,介绍基于PDA的数据采集系统软件的开发和应用,该系统已在我国各大城市的城市交通基础设施的数据采集中得到应用。
文摘Urban eco-environmental degradation is becoming inevitable due to the extensive urbanization, popula- tion growth, and socioeconomic development in China. One of the traffic arteries in Shenzhen is an urban expressway that is under construction and that runs across environmentally sensitive areas （ESAs）. The environmental pollution from urban expressways is critical, due to the characteristics of expressways such as high runoff coefficients, considerable contaminant accumulation, and complex pollutant ingredi- ents. ESAs are vulnerable to anthropogenic disturbances and hence should be given special attention. In order to evaluate the environmental sensitivity along this urban expressway and minimize the influences of the ongoing road construction and future operation on the surrounding ecosystem, the environmental sensitivity of the relevant area was evaluated based on the application of a geographic information sys- tem （GIS）. A final ESA map was classified into four environmental sensitivity levels; this classification indicates that a large proportion of the expressway passes through areas of high sensitivity, representing 11.93 km or 52.3% of the total expressway, and more than 90% of the total expressway passes through ESAs. This study provides beneficial information for optimal layout schemes of initial rainfall runofftreatment facilities developed from low-impact development （LID） techniques in order to minimize the impact of polluted road runoff on the surrounding ecological environment.
文摘This research aimed to determine instruments for analysis of knowledge management in operators companies of metropolitan transport systems. How much the goal was an exploratory research, how much the procedure was a literature search, how much as nature was an applied research, and how much as approach was qualitative research？ The following instruments were identified and selected： （a） the methodology for the analysis of metropolitan transport systems; （b） the knowledge management maturity model （Siemens）; and （c） Documentation and Information Centre. The simulation, using the tools in the knowledge management to analyze the Company Metropolitan of S^io Paulo--METRO, identified the need for improvements in eight areas and the problems： （1） rethink the knowledge management area; （2） develop new knowledge management policies; （3） define responsibilities in knowledge management area; （4） implement new knowledge management processes; （5） explore new ways and structures of knowledge; （6） consider the internal and external actors in knowledge management actions; （7） expand the dissemination of the collaborative culture; and （8） integrate in the knowledge management area current and future initiatives. The analysis shows that the transposition of the current situation to the desired situation for the company can be obtained with the implementation of an Information and Documentation Centre. The conclusion is that this set of tools allows to characterize, evaluate, and model the knowledge management in this business.
