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Table 1 Descriptive statistics of mean and the 85th percentile speed of car and SUV

From: Speed prediction models for car and sports utility vehicle at locations along four-lane median divided horizontal curves

Vehicle type Parameter Mean speed (km/h) The 85th percentile speed (km/h)
PC50 PC MC PT PT50 PC50 PC MC PT PT50
Car Minimum 72 71 64 62 63 83 82 74 72 74
Maximum 91 92 87 88 89 100 104 100 103 102
Average 81.55 80.09 78.00 78.27 80.18 92.36 92.00 88.55 89.18 91.55
SD 6.56 6.79 7.18 7.43 7.04 6.19 7.43 8.30 8.80 7.97
SUV Minimum 72 72 65 62 64 82 82 75 73 76
Maximum 91 88 90 87 92 103 102 104 101 105
Average 81.73 80.00 78.64 78.73 80.36 92.45 90.45 89.55 89.64 91.64
SD 6.12 5.98 7.21 7.42 7.65 7.41 7.53 8.77 9.31 8.89