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Table 1 Summary of traffic metrics

From: Residential traffic exposure and children's emergency department presentation for asthma: a spatial study

  Metric Type of metric Data source Interpretation
1 Kernel density Point pattern MRWA High vs low traffic area based on locations of monitoring sites
2 Distance-weighted traffic density
(All traffic, Truck traffic)
Weighted traffic counts Video monitoring Vehicle kilometres travelled per peak traffic hour weighted by a pollutant decay function of distance
3 Distance to nearest major road Linear distance EDIS
MRWA
Distance to nearest road carrying more than 15,000 vehicles per day
4 Road length
Road density
Road characteristics   Length of road or density of road within a circular buffer