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Table 5 Sensitivity analyses including best predictor in each category, all summary measures.

From: Land use regression modeling of intra-urban residential variability in multiple traffic-related air pollutants

Indicator Type Traffic Indicator Estimate(s), p-value(s) from multivariate model Model R2
Base model (w/out traffic)    R2 = .74
Cumulative Density scores Unweighted 500 m traffic density (n = 57) β1 = 4.74*10-4 (.17) R2 = .75
Summary Measures Total roadway length:   
  50 meters (n = 57) β1 = 1.31*10-4 (.35) R2 = .74
  100 meters (n = 57) β1 = 1.48*10 -4 (.02) R 2 = .76
  200 meters (n = 57) β1 = 1.42*10-5 (.56) R2 = .74
  300 meters (n = 57) β1 = 5.54*10-6 (.57) R2 = .74
Distance-based measures Distance to nearest designated truck route (n = 57) β1 = 1.80*10-5 (.62) R2 = .74
Characteristics of nearest major road Average daily traffic (ADT) (n = 57) β1 = -3.04*10-6 (.25) R2 = .74
  1. Final model bolded; models with diesel-based terms italicized. Traffic indicators for PM 2.5