Bureau of Transportation Statistics (BTS)
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Table 1
Average Distance, Time, and Speed by Decile

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Decile PIERS Database Transborder Database
Average distance (miles) Average time (min.) Estimated speed (mph) Average distance (miles) Average time (min.) Estimated speed (mph)
1 230.69 241.56 57.30 381.11 400.32 57.12
2 468.65 465.70 60.38 708.18 711.44 59.73
3 642.53 625.89 61.59 929.82 920.37 60.61
4 797.46 769.51 62.17 1,121.06 1,093.26 61.52
5 954.44 915.38 62.56 1,291.37 1,251.02 61.93
6 1,127.45 1,077.43 62.78 1,457.91 1,405.62 62.23
7 1,324.50 1,261.04 63.01 1,632.94 1,569.44 62.42
8 1,596.70 1,512.70 63.33 1,850.64 1,771.00 62.69
9 2,109.35 1,979.77 63.92 2,166.76 2,048.56 63.46
10 2,958.11 2,963.42 59.89 2,757.87 2,641.23 62.65