|VIUS97 categories||VIUS97 VMT||NHTS01 categories||NHTS01 VMT||VIUS97 VMT adjusted to 2001||95% upper CL VMT estimate||Notes|
|Private and commercial truck VMT (000,000)||Residential household personal VMT (000,000)||Estimated personal VMT (000,000)||Estimated commercial VMT (000,000)||VMT (000,000)|
|Total||95,207.10||131,002.5||Sum + f,g,i|
|Light trucks||32,397.9||Light truck||32,081.9||25,449.4||20,936.4|
Key: CFS = Commodity Flow Survey; CL = confidence limit; DOT = Department of Transportation; NHTS = National Household Travel Survey; NYS = New York State; RV = recreational vehicle; VIUS = Vehicle Inventory and Use Survey; VMT = vehicle-miles of travel.
a. Assume 95% upper CL estimate of NHTS01 personal VMT.
b. NHTS01/VIUS97 ratios for personal travel for pickup, nonpickup used to grow 2001 commercial component of (VIUS stratum 1,2).
c. Assume VMT contribution of non-NYS pickup + panel/van to be at least equal to NYS value.
d. Assume that VIUS97 stratum 3-4 vehicles are illogical as personal transportation choice and are considered commercial use.
e. Assume VIUS97 heavy-truck VMT estimate for surrounding states is equal to NYS estimate, since CFS shows 70% of all NYS origin movements are less than 50 miles; add to this the Reebie TranSearch 2001 primary truck shipment assigned network VMT in NYS with equal empty backhaul estimate (no estimate for secondary and/or transshipments are then made).
f. NYSDOT operating assistance-based bus transit VMT (000,000), which assumes 10% addition for deadhead miles 257.9
g. NYS school bus VMT (000,000) 204.8
h. Census provisions for state-based relative error computation are not provided. U.S. error is significantly less than that for the NYS sample. Twice the value of the U.S. relative error for truck-miles by operating class were used for NYS tables of annual miles by opclas and samtyp to compute upper 95% CL estimate.
i. Total includes 14.2 million VMT for RV not included in any of the other table rows.
New York State, Department of Education, estimates of school bus VMT, available at http://www.schoolbusfleet.com and http://www.schoolbusfleet.com/Stats/pdf/SBFFB03p29-30.pdf, Total Route Mileage.
New York State Department of Transportation, Office of Policy and Performance data.
______. Passenger Transportation Division, Annual report on public transportation assistance programs and specialized tabulation on bus VMT.
New York State Thruway data.
Reebie & Associates, TranSearch data, Custom tabulations, April 2003.
U.S. Department of Commerce, U.S. Census Bureau, Vehicle Inventory and Use Survey data.
______. U.S. census data.
U.S. Department of Transportation, Federal Highway Administration, National Household Travel Survey data.
U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Commodity Flow Survey data.