Digital city construction brings many conveniences for people all over the world at present and in the future. Grid platform is a kind of better platform which integrates existing resources to share. This paper combines WebGIS technology with grid technology. It briefly puts forward the key technologies to make people understand concerned technology used in the system, and gives system framewor...

The term “Smart City” is to-date widely used, but little clarity appears in the definition behind it. Several approaches led to a growing emphasis on the combined use of geographic information and communication technology to build cognitive frameworks in city planning and management. The present paper tackles an effort to define ‘smart cities’ and to identify both elements of smartness, and cri...

The national goal of the federal government of Germany is to have one million fully electric vehicles in use until year 2020. Since an average tour of vehicles in inner-city logistic is about 80km, it is promising that such logistic companies use electric vehicles for their tours. However, there are some reasons for doubts in companies: unknown behaviors, inaccurate range forecasts, and high co...