Tunnel Ventilation

HNTB Tunnel Ventilation and Fire Life Safety

The HNTB Companies Infrastructure

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HNTB TUNNEL VENTILATION GROUP Tunnel infrastructure projects today require a successful incorporation of ventilation and fire life safety systems ensuring comfortable and safe operations for all users.

HNTB brings decades of experience to help identify and execute solutions that balance stakeholder interests and provide benefit to the owner and community.

The tunnel ventilation and fire protection specialists at HNTB understand the expectations of project owners, as well as regulators, communities, and first responders. Our familiarity with these interested stakeholders allows us to identify solutions faster and more efficiently. We provide tunnel ventilation and fire life safety planning, documentation, design and construction for standalone conceptual study projects as well as those associated with traditional transportation projects such as roadway, heavy rail, and light rail tunnel applications.

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Boston South Station Expansion Project Boston, MA The $37 million South Station Expansion (SSX) project is part of the vision for the New England High-Speed and Intercity Rail Network. Under the direction of MassDOT’s Office of Transportation Planning, and in cooperation with the Federal Railroad Administration, HNTB completed all Preliminary engineering for the expansion of Boston’s South Station and development of rail vehicle layover facilities; including fire life safety analysis for proposed and existing facilities. Analyses performed by the HTNB Tunnel Ventilation and Fire Life Safety Team also helped guide diesel locomotive operating protocols to optimize occupant safety and comfort and meet regulatory requirements.

SR99 Tunnel Project Seattle, WA Designed to enhance safety and emergency vehicle access, the SR99 Tunnel features a two-level roadway tunnel to replace the earthquake damaged Alaskan Way Viaduct.

At 57.5 feet in diameter and nearly 2 miles long, the tunnel in downtown Seattle is the world’s second-largest soft ground, machine-bored tunnel featuring state-ofthe-art ventilation, fire detection and suppression systems designed by the HTNB Ventilation and Fire Life Safety Team.

Analysis, represented by the image at left, determined ventilation operations to effectively mitigate carbon emissions during normal and congested tunnel operations.

Casey Overpass Project Boston, MA The multimodal components of Casey Arborway presented one of the project’s most significant challenges. At the heart of the Casey site is the MBTA’s Forest Hills Station, a multimodal center accommodating nearly 20 bus routes in three separate busways, a taxicab stand, the Orange Line subway terminus, an MBTA commuter rail station and Amtrak’s Northeast Corridor passage. The HNTB Ventilation and Fire Life Safety Team assessed ventilation and fire life safety requirements for facility additions.

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Tunnel Ventilation Experts

Based on the needs of a particular project, HNTB assembles a group of professionals with the experience and credentials to skillfully solve the client’s project specific challenges.

HNTB professionals assist clients in developing an optimal solution that will be functional, efficient and effective for years to come — balancing the protection of our users, owners, first responders, and regulatory requirements with innovative, reliable and cost- effective solutions that facilitate community and industry needs.

Jerry Casey, P.E. Manager Mechanical Engineering Group

jcasey@hntb.com

Principal Engineer Fire Life Safety scassady@hntb.com

(425) 450-2519

(425) 450-2732

David Parker, P.E.

Jason Liu, PhD, P.E., CPEng, FIEA, FPE

Sr. Project Engineer Mechanical Engineering dparker@hntb.com

The HNTB Companies Infrastructure Solutions

Sean Cassady, P.E., FPE

(425) 450-2575

Sr. Technical Advisor Tunnel Ventilation/FLS yuliu@hntb.com (425) 450-2520

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Bernd Hagenah, PhD Principal Engineer Tunnel Ventilation/FLS bhagenah@hntb.com (646) 969-2713

Eric Jones, P.E. Sr. Project Engineer Tunnel Ventilation/FLS ejones@hntb.com (425) 450-2503

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Tunnel Air Quality Analysis Carbon Monoxide Analyses for Transportation Projects Exhibits/Displays Tunnel Vehicle Emissions Analysis Equipment Lifecycle & Energy Analysis Tunnel Ventilation Design & Analysis Tunnel and Infrastructure Fire Life Safety Design & Analysis Rolling Stock Aerodynamics Analysis Tunnel Ventilation Design Egress Planning & Analysis Fire Department Coordination

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Operations & Maintenance Planning Stormwater Management Fire Protection Foam Systems Analysis & Design Fire Protection System Design Clean Agent Fire Suppression System Design

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The HNTB Companies Infrastructure Solutions hntb.com

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General air conformity analysis Manuals/guides Development Mobile Source Air Toxics Analysis CFD Analysis and Modeling Tunnel Fixed Fire Suppression Design & Analysis First Responder Access & Coordination Structural Fire Durability Analysis Roadway Tunnel Fire Hazard Analysis Rail Tunnel Fire Hazard Analysis Standpipe Design & Analysis Construction Support Services Construction Engineering Stamped/Sealed Engineering Documents Pedestrian Circulation Systems Modeling & Design Ventilation and Fire Protection System Testing

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Report Development & Presentation HVAC Design & Analysis Plumbing Design & Analysis BIM Modeling MOVES emissions modeling Hydraulic Transients/Water-hammer Analysis Industrial Ventilation Analysis & Design Emergency Response Analysis Mechanical Engineering Design & Analysis SES Calculations & Analysis Site Design, Planning & Conceptual Analysis Subway Station Fire Protection Design & Analysis Design-Build Tunnels Tunnel Ventilation Controls Rehabilitation Design & Analysis Fire Alarm and Detection Design & Analysis Tunnel Maintenance Facilities

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Reproduction in whole or in part without written permission is prohibited.

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