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From page 138... ... 138 A p p e n d i x d A day-of-year expansion factor can be applied in lieu of the traditional combination of dayof-week and month-of-year factors. This approach has been shown to substantially outperform the traditional approach in both bicycle-only monitoring situations and in mixed bicycle and pedestrian situations (Hankey et al. Read the entire page →
From page 139... ... day-of-Year Factoring Approach 139 To apply these factors at a short-term count site l, where data has been collected for m full days, use the following (where SDT is the Short-Duration Total, VOL is the volume for a given site and day, and AADT is the annual average daily traffic) : , ,1 , , , SDT VOL AADT SDT DOY l m l dd m l m l m l dd m ∑ ∑ = = = If multiple continuous count sites are available for a specific factor group within the region, some discretion is needed in estimating the day-of-year factors. Read the entire page →
From page 140... ... Abbreviations and acronyms used without deﬁnitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) Read the entire page →

From page 138...

... 138 A p p e n d i x d A day-of-year expansion factor can be applied in lieu of the traditional combination of dayof-week and month-of-year factors. This approach has been shown to substantially outperform the traditional approach in both bicycle-only monitoring situations and in mixed bicycle and pedestrian situations (Hankey et al.

Read the entire page →

From page 139...

... day-of-Year Factoring Approach 139 To apply these factors at a short-term count site l, where data has been collected for m full days, use the following (where SDT is the Short-Duration Total, VOL is the volume for a given site and day, and AADT is the annual average daily traffic) : , ,1 , , , SDT VOL AADT SDT DOY l m l dd m l m l m l dd m ∑ ∑ = = = If multiple continuous count sites are available for a specific factor group within the region, some discretion is needed in estimating the day-of-year factors.

Read the entire page →

From page 140...

... Abbreviations and acronyms used without deﬁnitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005)

Read the entire page →

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