3D CITY GIS FOR SUSTAINING CITY INFRASTRUCTURE - THE BENTLEY APPROACH

摘要

The design of new infrastructure and the management of as-built maintenance processes involve thousands of technical and human challenges. Obtaining and communicating the information required for analysis is only part of the complexity. Multi-disciplinary experts have to collaborate frequently on infrastructure projects. (For example, structural experts will focus on the mechanical properties of a building while energy assessors will focus on building energy design, analysis, and simulation.) In addition, many of these experts will have to communicate throughout the project with the general public and municipal leadership. Challenges related to infrastructure sustainability are numerous, and their relationship to the global economy is important. In a study by Booz Allen Hamilton, the authors put the worldwide budget for infrastructure sustainability between the years 2005 and 2030 at 41 trillion dollars, with 50 percent of those dollars going toward water infrastructure. Given the large size of the expenditures anticipated, it's easy to see that even marginal productivity improvements in infrastructure sustainability will lead to significant savings in national budgets. A better understanding of infrastructure usage can also provide tremendous benefits. For example, a highway alignment designed to minimize vehicle energy consumption can reduce a city's carbon footprint and, thus, help sustain the environment.