Table 3 - Mean Speed Characteristics

Table 3 - Mean Speed Characteristics

Excel | CSV

Six-lane highway sections

Site code (highway) Direction of travel Travel lane 24-hour passenger car lane volume 24-hour truck volume Lane-based mean speed
m1
Vehicle type-based mean speed
m2
Trimmed mean speed Average mean speed
320 (I-75) NB Shoulder 4,003 4,074 73 73 70 70
Middle 8,173 2,202 73 74
Median 3,609 99 79 79
SB Shoulder 4,350 3,850 74 74 69 70
Middle 9,109 2,175 75 75
Median 4,976 140 80 81
9904 (I-75) NB Shoulder 4,614 4,436 71 73 69 67
Middle 10,606 2,227 73 72
Median 6,512 107 76 76
SB Shoulder 3,814 4,184 73 72 69 68
Middle 8,899 2,058 75 74
Median 4,658 78 77 78
9905 (I-95) NB Shoulder 5,685 3,209 72 72 68 68
Middle 12,288 3,072 73 73
Median 5,711 316 78 77
SB Shoulder 7,004 3,766 72 72 68 68
Middle 10,992 2,279 73 73
Median 4,471 280 77 77

Four-lane highway sections

Site code (highway) Direction of travel Travel lane 24-hour passenger car lane volume 24-hour truck volume Lane-based mean speed
m1
Vehicle type-based mean speed
m2
Trimmed mean speed Average mean speed
9901 (I-10) WB Shoulder 4,959 2,729 74 74 73 73
Median 2,356 367 78 78
EB Shoulder 4,843 2,844 74 74 73 73
Median 2,254 407 78 78
9928 (I-10) WB Shoulder 4,551 2,122 69 69 68 68
Median 2,081 266 73 73
EB Shoulder 4,894 2,107 70 71 70 70
Median 1,867 257 72 72
351 (I-75) WB Shoulder 4,522 1,097 73 73 72 72
Median 2,087 122 77 77
EB Shoulder 4,399 132 78 79 74 74
Median 2,297 1,103 85 85
9919 (I-95) NB Shoulder 3,649 3,574 69 69 70 68
Median 5,118 2,640 75 70
SB Shoulder 5,427 3,730 66 67 68 66
Median 3,642 1,440 69 67
9932 (Turnpike) NB Shoulder 6,479 1,142 72 72 70 70
Median 3,074 192 75 77
SB Shoulder 7,733 1,400 73 73 70 71
Median 4,415 361 76 78

Key: EB = eastbound; NB = northbound; SB = southbound; WB = westbound.