Surveying Crossrail’s tunnels from space

Using satellite radar, a team of engineers was able to monitor how Crossrail’s tunnelling impacted the buildings above. Andrew Wade reports. The subterranean world beneath London is some of the most heavily tunnelled of any major city. From Bazalgette’s sewer system to the ever-evolving Tube network, the UK’s capital has for centuries plumbed its depths … Continue reading Surveying Crossrail’s tunnels from space