AECOM, together with Swedish consultants \u00c5F, designed one of the biggest infrastructure projects in Sweden \u2013 the E4 Stockholm Bypass. This new dual, three-lane motorway will connect the northern and southern parts of the city and relieve congestion in Stockholm.<\/p>\n
The Stockholm Bypass is a new motorway link that will connect the northern and southern parts of Stockholm, relieving traffic in the city centre. Most of the route, some 18km, will be underground. It will be the longest road tunnel in the world with a total length of over 50 km.<\/p>\n
Together with \u00c5F, AECOM delivered design\u00a0services under two major contracts for the project: an important interchange\u00a0at Akalla\/H\u00e4ggvik, and the rock tunnels. When completed, the bypass will comprise two parallel road tunnels, carrying traffic in opposite directions. Both tunnels will have three lanes, increasing to four at the six interchanges along the route.<\/p>\n
At their\u00a0deepest point, the tunnels will be almost 100m below ground. The complicated\u00a0multilevel interchange at Akalla\/H\u00e4ggvik will connect to the rock tunnels. It\u00a0involves the construction of new bridges, underpasses, further tunnels and\u00a0retaining walls, as well as the upgrade of existing structures.<\/p>\n
AECOM’s use of Building Information Modelling (BIM) has been key to managing\u00a0the complexities of this major infrastructure project. The design phase will be\u00a0delivered by more than 500 people from 19 different disciplines across seven\u00a0different countries. In 2013, AECOM won the Innovation in Roads category at the\u00a0Bentley Be Inspired Awards for its use of BIM on the project.<\/p>\n