Northwest Transit Systems Partners JV to oversee Sound Transit light rail expansion

Northwest Transit Systems Partners (NTSP), a joint venture consisting of US transportation design and construction management firm STV, and Mott MacDonald, is to oversee the systems construction of two new light rail extensions for Sound Transit’s light rail system in Seattle, US. The NTSP team will perform systems construction management services for the US$3.7 billion East Link Extension, a 14-mile-long extension connecting Seattle, Mercer Island, Bellevue and Redmond; and the US$1.9 billion 4.3-mile
August 23, 2017 Read time: 2 mins
Northwest Transit Systems Partners (NTSP), a joint venture consisting of US transportation design and construction management firm STV, and 1869 Mott MacDonald, is to oversee the systems construction of two new light rail extensions for Sound Transit’s light rail system in Seattle, US.


The NTSP team will perform systems construction management services for the US$3.7 billion East Link Extension, a 14-mile-long extension connecting Seattle, Mercer Island, Bellevue and Redmond; and the US$1.9 billion 4.3-mile Northgate Link Extension between the University of Washington at Husky Stadium, the University District and the Northgate area. Both extensions are key components of a larger system expansion being undertaken by Sound Transit over the next 25 years.

Sound Transit estimates that at least 50,000 people a day will use East Link by 2030. Once completed, the extension will be the world’s only passenger light rail service operating over a floating bridge, the section of I-90 over Lake Washington connecting Mercer Island and Seattle.

For more information on companies in this article

Related Content

  • Port authority to replace ITS system at George Washington bridge
    November 16, 2012
    The Intelligent Transportation System (ITS) at the George Washington Bridge (GWB), first installed in 1997, is to be replaced by the Port Authority of New York and New Jersey as part of a road improvements being planned throughout the region. The ITS provides information on traffic conditions, estimated travel times, and lane restrictions to motorists via electronic signs on roads leading to the GWB. An estimated 101 million vehicles crossed the world’s busiest crossing in both directions in 2011. Work on t
    Read More
  • Brescia Metro goes contactless with Conduent
    June 19, 2020
    ABT move is part of wider modernisation work by the Italian transit agency
    Read More
  • Sony helps Rio get a better view of the Olympics
    June 29, 2016
    With the Olympics approaching, Sony’s Stephane Clauss examines how the latest camera technologies can help cities cope with the huge crowds attending major events. This August will see more than 10,000 athletes head to Rio de Janeiro for the Olympics Games. Alongside them will be their coaching staff, a hoard of logistics teams, thousands of volunteer marshals (London 2012 had 70,000) and millions of spectators. All such major events have nervous jitters on the way to the opening ceremony. This year has see
    Read More
  • South Africa's first multi-lane free-flow tolling top of the line
    February 3, 2012
    Kapsch's Kjell Arnesson talks about the first multi-lane free-flow tolling project in South Africa. In South Africa, installation is ongoing as part of the Gauteng Freeway Improvement Project (GFIP) of the country's first Multi-Lane Free-Flow (MLFF) tolling system.
    Read More

Highlighted Content