The concept of 'digital twins' has evolved from a niche engineering tool into a cornerstone of modern infrastructure management. A digital twin is a virtual replica of a physical asset, process, or system, continuously updated with real-time data from sensors and IoT devices. This dynamic model allows engineers to simulate scenarios, predict failures, and optimize performance without disrupting the physical counterpart. In urban planning, digital twins of entire cities enable authorities to test the impact of new traffic flows, energy grids, or emergency response strategies before implementation. However, the reliance on vast data streams raises concerns about data security and the digital divide, as only well-resourced municipalities can afford such sophisticated systems. Critics argue that without equitable access, digital twins could exacerbate existing inequalities in urban development.
❓ 根据文章内容，在城市规划中使用数字孪生的一个主要优势是什么？
A. A. 它们完全消除了对实体基础设施的需求。
B. B. 它们允许在不直接干扰现实世界的情况下测试变更。
C. C. 它们自动解决所有数据安全问题。
D. D. 它们价格低廉，所有市政当局都能负担得起。
✅ 正确答案
B. They allow testing of changes without direct real-world disruption.