Construcción de Crossrail, el nuevo tren subterráneo de Londres

http://www.crossrail.co.uk/news/articles/construction-of-crossrail-at-half-way-point-in-images

By Nick Mann Less than five years after works began on Crossrail, Europe's largest infrastructure project today reached the halfway point of its construction. Crossrail will add 10% capacity to London's rail network. It will serve 38 stations, connecting Maidenhead and Heathrow in the west with Shenfield and Abbey Wood in the east via central London.