The opening of the 34th Street-Hudson Yards station marked a major milestone for Metropolitan Transportation Authority (MTA) New York City Transit and the City of New York: the completion of a $2.42 billion extension of the No. 7 subway line from Times Square to Manhattan’s far West Side. This transformative project brought reliable subway service to an area that had long been underserved, unlocking new development and improving regional mobility. As a subconsultant, STV supported the MTA with a wide-ranging suite of planning, environmental and systems engineering services critical to the success of this historic expansion.
What challenges did STV address?
The extension required comprehensive planning and environmental review to support one of the most significant transit expansions in New York City in decades. The project needed to integrate a new subway station, tunnels, and supporting infrastructure into a dense, rapidly evolving urban environment. Ensuring regulatory compliance, designing modern transit systems and establishing seamless integration with existing subway operations were key challenges.
What solutions did STV deliver?
STV provided environmental analyses, urban design, and transportation planning to support the Generic Environmental Impact Statement. The firm also delivered systems engineering and systems integration engineering support, along with preliminary through final design for communications, fire alarm, CCTV, time clock and traction power systems. These services ensured that the new extension met the highest standards for safety, reliability, and operational performance.
How does this project benefit the region?
The No. 7 Line Extension expands transit access to Manhattan’s far West Side, connecting residents, workers, and visitors to a rapidly growing district anchored by commercial, residential, and cultural development. The project enhances mobility, supports economic growth and strengthens New York City’s transit network for generations to come.
Key stats and accolades
- $2.42 billion transit infrastructure investment
- Over one mile of new subway tunnel from Times Square to Hudson Yards
- New ADA-accessible 34th Street–Hudson Yards station
- Comprehensive systems engineering and communications design
- STV-supported environmental and urban design processes enabling project approval
