Modular Scale Model NYC Transit Subway Station With Particle Image Velocimetry

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Biochemical Agent Transport

Pto 35 1roject goal: Measure the flow field and the dispersion of a Biochemical Agent (BCA) surrogate in the subway station environment to estimate exposure to riders and workers. Future studies will probe the role of forced vs. natural convection on exposure, and methods of BCA containment.

Key Scale Model Features:

  • 1:48 scale model of NYC MTA C line to 35 2 135th St station
  • Includes an automated MTH Premier R-40 8-Car train set that runs along Atlas O-40 rigid track
  • Modular station design includes 2 tracks (1 removable), 2 platforms, multiple stairwells (all removable) and multiple columns (all removable)
  • Surrogate BCA generated and released via up-tunnel flow and at specific locations along track

Key PIV Features:

  • Used to measure flow field and surrogate BCA dispersion in station
  • Includes a Nd:YAG 532 nm laser articulated using a light arm into a 6” to 12” square light sheet, and a high speed camera and processor while collects images on a ~16ms frequency.
Model Dimensions Actual Model
Overall Length
410’-6”
8'-6"
Distance Between Track & Ceiling 14'-6" 3 5/8"
Distance Between Platform & Ceiling
10'-0" 2 1/2"
Tunnel Length Before & After Station 528’-0" 11’-0"
Train Width 8'-6" 2 1/4"
Track Width 10'-5" 2 5/8"
Track Spacing 1'-6" 3/8"x3/4"
Platform Height 4'-5" 1 1/8"
Platform Width 12'-0" 3"
Column Outer Width 1'x1'x10'-0" 1/4"x1/4"x2 1/2"
Column Inner Width 1'x1'x15'-0" 1/4"x1/4"x3 3/4"
Spacing to Adjacent Column 15'-0" 3 3/4"
Staircase Dimensions    
Overall Height 10'-0" 2 1/2"
Footprint Width 6'-6" 1 5/8"
Footprint Length 15'-6" 3 7/8"
Distance to Adjacent Staircase 102'-0" 2'-1 1/2"