The Overground
OH-ver-grownd /ˈəʊvəɡraʊnd/
Neutral Neutral
What it really means
A network of surface trains around London, shown in orange on the transport map. It works like the Tube — same tickets, tap in and out — but runs mostly above ground around the edges of the city.
Chinese explanation
伦敦地上铁，在交通图上用橙色标示。使用方式和地铁一样——同样的票、进出刷卡——但主要在地面沿城市外围运行。
Example conversation
A: There is no Tube station near my flat in Hackney.
B: Check the Overground, the orange line on the map. It covers a lot of east London.
A：我在哈克尼的公寓附近没有地铁站。
B：看看地上铁吧，就是地图上的橙色线路，东伦敦覆盖很广。
What you could say back
No spoken reply needed for this one.
Related phrases
Official sources
Rules and amounts change — confirm important details with the official source.
All Transport
Reviewed by the UK Decoded editorial team
· Last checked 24 July 2026 · Report a mistake