Table 5 Sensitivity analyses including best predictor in each category, all summary measures.
Indicator Type | Traffic Indicator | Estimate(s), p-value(s) from multivariate model | Model R2 |
|---|---|---|---|
Base model (w/out traffic) | Â | Â | 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: | Â | Â |
|  | 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 |