Table 5 Comparison of Before-and-After Speed Data,,,,,,
Highway,"Location, direction, and year",Mean speed (mph),Standard deviation (mph),Coefficient of variation (%),15th percentile speed (mph),
Six-lane highway sections,,,,,,
I-75,"Between I-10 & CR136, NB, 1996",66,4,6,63,
,"Site 320, NB, 2002",73,6,8,67,
,"Between I-10 & CR136, SB, 1996",66,5,8,61,
,"Site 320, SB, 2002",74,7,9,66,
,"Between CR234 & SR21, NB, 1996",68,5,7,63,
,"Site 9904, NB, 2002",71,6,8,64,
,"Between CR234 & SR21, SB, 1996",67,5,7,63,
,"Site 9904, SB, 2002",71,6,8,64,
I-95,"Between CR210 and I-295, NB, 1996",67,4,6,64,
,"Site 9905, NB, 2002",72,7,10,65,
,"Midpoint CR210 and I-295, SB, 1996",63,6,10,60,
,"Site 9905, SB, 2002",72,6,8,65,
,"Near Flagler CL, NB, 1996",69,4,6,65,
,"Site 9905, NB, 2002",72,7,10,65
,"Near Flagler CL, SB, 1996",64,5,8,63
,"Site 9905, SB, 2002",72,6,10,65
Four-lane highway sections,,,,,
I-75,"At mile marker 89, WB, 1996",66,4,6,61
,"Site 351,WB, 2002",74,7,9,66
,"At mile marker 89, EB, 1996",68,6,9,63
,"Site 351, EB, 2002",78,9,11,68
I-10,"Overpass E. of SR 85, WB, 1996",67,4,6,64
,"Site 9901, WB, 2002",74,6,8,68
,"Overpass E. of SR 85, EB, 1996",69,4,6,64
,"Site 9901, EB, 2002",74,6,8,68
,"C-280 overpass, WB, 1996",68,5,7,65
,"Site 9901, WB, 2002",74,6,8,68
,"C-280 overpass, EB, 1996",67,4,6,64
,"Site 9901, EB, 2002",74,6,8,68
,"Between SR257 & US221, WB, 1996",67,5,7,62
,"Site 9928, WB, 2002",70,6,9,66
,"Between SR257 & US221, EB, 1996",69,5,7,65
,"Site 9928, EB, 2002",71,5,7,68
,"East end of Aucilla River, WB, 1996",67,5,7,62
,"Site 9928, WB, 2002",70,6,8,66
,"East end of Aucilla River, EB, 1996",69,4,6,64
,"Site 9928, EB, 2002",71,5,7,68
Key: EB = eastbound; NB = northbound; SB = southbound; WB = westbound.,,,,,
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