Optimal Ventilation Control in Complex Urban Tunnels

Oliver Gao and Zhen Tan, Center for Transportation, Environment, and Community Health (CTECH), Cornell University

Urban tunnels, with thousands of cars traveling through them, can become air pollution hotspots. The problem is how to design the layout, capacity, and air flow direction in the tunnel vents to control air quality and protect health. We developed an optimization model and system management policies that can help tunnel ventilation designers and controllers decide how many jet fans to use and where the ventilation system needs to be turned on and off.
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