Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Region Statistic (1 = most frequently used technology, 2 = second most frequently used technology, etc.) Northeast Standard Deviation 0.38 1.03 1.41 0.58 2.08 1.41 - 2.83 1.41 Northeast Number of Responses 7 6 2 4 4 2 0 2 2 Northwest Average 1.00 2.00 - - - 1.00 - 3.00 1.00 Northwest Standard Deviation 0.00 - - - - - - - - Northwest Number of Responses 2 1 0 0 0 1 0 1 1 South Average 1.17 2.33 4.00 - 2.67 3.00 - - - South Standard Deviation 0.41 1.03 1.41 - 1.15 0.00 - - - South Number of Responses 6 6 2 0 3 2 0 0 0 Southeast Average 1.60 3.67 5.00 1.50 2.00 2.00 3.00 2.00 - Southeast Standard Deviation 1.34 2.08 - 0.71 - 0.00 - 1.41 - Southeast Number of Responses 5 3 1 2 1 2 1 2 0 Southwest Average 1.67 1.00 2.50 1.00 3.50 4.00 4.00 - - Southwest Standard Deviation 0.58 - 0.71 - 0.71 - 1.41 - - Southwest Number of Responses 3 1 2 1 2 1 2 0 0 West Average 1.00 3.00 4.00 3.00 - 2.00 - - - West Standard Deviation 0.00 - 1.41 1.41 - - - - - West Number of Responses 2 1 2 2 0 1 0 0 0 Traveler Inform ation System s Q ueue W arning D ynam ic Lane M erge D ynam ic (Variable) Speed Lim it W ork Zone D ata C ollection Technologies W ork Zone Location Technologies W ork Zone Intrusion A larm N otification of C onstruction Equipm ent Entering/Exiting O ther
Region Statistic Traveler Inform ation System s Q ueue W arning D ynam ic Lane M erge D ynam ic (Variable) Speed Lim it W ork Zone D ata C ollection Technologies W ork Zone Location Technologies W ork Zone Intrusion A larm N otification of C onstruction Equipm ent Entering/Exiting O ther (1 = most frequently used technology, 2 = second most frequently used technology, etc.) West North Central Average 1.00 1.33 - 3.00 - - - - - West North Central Standard Deviation 0.00 0.58 - - - - - - - West North Central Number of Responses 2 3 0 1 0 0 0 0 0 NOTE: (-) indicates that the value could not be calculated because of an insufficient number of responses.
H-1Â Â A P P E N D I X H Survey Results for DOT Performance Ratings of Smart Work Zone Technologies by Climate Region
Table H-1. Survey results for DOT performance ratings of smart work zone technologies by climate region. Region Statistic (1 = Poor, 5 = Outstanding) All Average 4.00 3.87 3.79 3.33 3.12 3.50 2.50 2.71 3.75 All Standard Deviation 0.78 0.96 1.12 0.49 1.05 0.97 0.71 0.95 0.96 All Number of Responses 40 31 14 12 17 10 2 7 4 Central Average 4.00 3.83 3.00 3.00 3.00 3.50 - - - Central Standard Deviation 0.89 0.75 0.00 0.00 1.00 0.71 - - - Central Number of Responses 6 6 2 2 3 2 0 0 0 East North Central Average 3.25 4.00 5.00 - 3.50 3.00 - 2.00 4.00 East North Central Standard Deviation 0.96 0.82 0.00 - 0.58 - - 1.00 - Traveler Inform ation System s Q ueue W arning D ynam ic Lane M erge D ynam ic (Variable) Speed Lim it W ork Zone D ata C ollection Technologies W ork Zone Location Technologies W ork Zone Intrusion A larm N otification of C onstruction Equipm ent Entering/Exiting O ther
