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Table 1 Traffic indicators examined for GIS-based LUR models.

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

Indicator type Indicator Units
Cumulative density scores: Unweighted density within: 50, 100, 200, 300, 500 m buffers Vehicle-meters/per day/m2
  Kernel-weighted density: 50, 100, 200, 300, 500 m buffers Vehicle-meters/per day/m2
  Density of urban roads (> 8500 cars/day) within 200 m Vehicle-meters/per day/m2
Summary measures: Total roadway length within: 50, 100, 200, 300, 500 m Meters
  Total ADT*Length (VMT) within 200 m Vehicle-meters per day
Distance-based measures: Distance to nearest urban road (>8500 cars/day) Meters
  To nearest major road (>13,000 cars/day) Meters
  To nearest highway (>19,000 cars/day) Meters
  To nearest MHD-designated truck route Meters
Characteristics of nearest major road: Average daily traffic (ADT) Vehicles/day
  ADT/Distance to major road (Vehicles/day)/m
  Diesel fraction Percent (%)
  Trucks per day Vehicles/day
  Trucks/Distance to major road (Vehicles/day)/m