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Table 1 Error statistics for the seven outcomes in each of the two cities (best model)

From: Physical environment features that predict outdoor active play can be measured using Google Street View images

Outcome

Target

Train (Kingston)

Test (Vancouver)

RMSE

R2

MAE

RMSE

R2

MAE

Vegetation

Standardized Number of Trees (Postal Code (PC))

0.63

0.60

0.38

0.53

0.74

0.40

Sidewalks

Sidewalk Length (PC)

824

0.96

473

Pedestrians

Standardized Count (Intersection)

0.81

0.28

0.29

1.08

0.03

0.67

Bicycles

Standardized Count (Intersection)

0.83

0.27

0.44

1.77

0.00

1.08

Vehicles

Standardized Count (Intersection)

0.91

0.21

0.28

2.02

0.16

1.48

Traffic Lights

Standardized Count (PC)

0.51

0.74

0.29

1.29

0.27

0.97

Traffic Signs

Standardized Count (PC)

0.50

0.75

0.33