Meanwhile Crossrail is essential in order to cope with London's growing population.
經過數十年的爭論，終於達成協議，建設一條連接東西郊的快速地鐵（倫敦橫貫鐵路，Crossrail），但是項目動工時間不會早於2017年，而且工程成本也在不斷增加。
After decades of wrangling, there is agreement at last on a fast underground Crossrail linking suburbs west and east, but this will not be open until 2017 at the earliest and the cost has spiralled.
