← Field 09
FIELD 09 / DATA EXPLORER · MOHITH GAJJELA

The same model, on real roads.
269 days of sensors and 8 million cars.

The Field 09 model on real roads. Each picture is a highway over one morning: distance left to right, time top to bottom, blue for empty and red for jammed. Compare the real traffic on the left with what each model rebuilt from only the white sensors.

Ground truth

kept sensorheld-out sensor (evaluation)

Pure neural net

Same network, same k sensors, no physics.

Physics-informed net

Same network + LWR residual at 10k collocation points.

Corridor profile at

ground truth (all sensors)PINNpure NNlinear interpolationkept sensors

Held-out error relative L2 on stations the model never saw

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linear interp
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pure NN
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PINN

Where physics breaks: |PDE residual| PINN with all sensors; bright = conservation violated

CHP incident (real log, I-880 S)on-rampoff-ramp

Fundamental diagram

Inverse problem: recovering the fundamental diagram start from wrong parameters, let the PINN learn them

Corridor map PeMS station coordinates

All results for this dataset relative L2 (%) / MAE (veh/mi/lane) on held-out cells, mean over seeds

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