Benedict Springbett

Hong Kong has land to build on, an autocratic government, and the world’s most expensive housing. Why doesn’t it build more?

Trains often stop at the edge of town centres, forcing inconvenient transfers. Running railway lines onto tram networks provides a solution.

Commuter trains often stop at the edge of cities. Short tunnels can link them up, creating metro networks for a fraction of the cost of building them from scratch.