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Table 2 Distribution of the traffic indicators

From: Host and environmental predictors of exhaled breath temperature in the elderly

  Percentile
Traffic indicator Mean ± SD 5th 25th 50th 75th 95th
Distance: freeway, m 3538 ± 1334 810 2848 3748 4236 5292
Distance major road, m 644 ± 458 99 272 539 1011 1347
Distance major intense road, m 608 ± 515 67 228 518 1010 1239
Density: 200-m buffer, vehicles*km/day 2317 ± 3131 0 186 1130 2747 10338
Density: 300-m buffer, vehicles*km/day 6001 ± 6448 0 1716 3596 6890 19937
Density: 500-m buffer, vehicles*km/day 16973 ± 14057 1141 6465 10143 28241 42636
Density: 1000-m buffer, vehicles*km/day 65695 ± 31910 23160 34747 67948 92375 112646