TRANSPORTATION ENERGY DATA BOOK: EDITION 22 - Center for ...

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11–16 According to the U.S. Census data, the percentage of workers who car pooled has dropped from 19.7% in 1980 to 11.2% in 2000. The percent of workers using public transit declined from 6.4% to 5.3% in the ten year period between 1980 and 1990, but stayed relatively the same from 1990 to 2000 (5.2%). The average travel time increased by 2.6 minutes from 1980 to 2000. Means of transportation Table 11.14 Means of Transportation to Work, 1980, 1990 and 2000 Census a This category was "Bus or streetcar" in 1980. b Data are not available. 1980 Census 1990 Census 2000 Census Number of workers (thousands) Share Number of workers (thousands) Share TRANSPORTATION ENERGY DATA BOOK: EDITION 22—2002 Number of workers (thousands) Share Private vehicle 81,258 84.1% 99,593 86.5% 111,554 87.5% Drove alone 62,193 64.4% 84,215 73.2% 97,247 76.3% Car pooled 19,065 19.7% 15,378 13.4% 14,307 11.2% Public transportation 6,175 6.4% 6,070 5.3% 6,575 5.2% Bus or trolley busa 3,925 4.1% 3,445 3.0% 3,572 2.8% a Streetcar or trolley car b b 78 0.1% 88 0.1% Subway or elevated 1,529 1.6% 1,755 1.5% 1,981 1.6% Railroad 554 0.6% 574 0.5% 696 0.5% Ferryboat b b 37 0.0% 43 0.0% Taxicab 167 0.2% 179 0.2% 194 0.2% Motorcycle 419 0.4% 237 0.2% 158 0.1% Bicycle 468 0.5% 467 0.4% 563 0.4% Walked only 5,413 5.6% 4,489 3.9% 3,413 2.7% Other means 703 0.7% 809 0.7% 1,099 0.9% Worked at home 2,180 2.3% 3,406 3.0% 4,075 3.2% Total workers 96,617 100.0% 115,070 100.0% 127,437 100.0% Average travel time (minutes) 21.7 22.4 24.3 Source: 1980-1990 data - Provided by the Journey-to-Work and Migration Statistics Branch, Population Division, U.S. Bureau of the Census 2000 data - U.S. Bureau of the Census, American Fact Finder, factfinder.census.gov, Tables QT-03 and P047, August 2001. (Additional resources: www.census.gov)
More than half of workers had 15-29 minute commutes in 1990, but that dropped to 35% by 2000. The share of workers commuting less than 15 minutes increased the most in the ten-year period (14 percentage points), but the share of workers commuting 30 minutes or more also saw small increases. Table 11.15 Workers by Commute Time, 1990 and 2000 Census Commute time 1990 2000 Less than 15 minutes 15.9% 30.1% 15–29 minutes 51.6% 36.3% 30–39 minutes 14.7% 15.7% 40–59 minutes 9.0% 10.7% 60 minutes or more 5.9% 7.3% Average travel time (minutes) 22.4 24.3 Source: 1990 - U. S. Department of Transportation, Volpe National Transportation Systems Center, Journey-to-Work Trends in the United States and its Major Metropolitan Area, 1960–1990, FHWA-PL-94-012, Cambridge, MA, 1994, p. 2-6. 2000 - U.S. Bureau of the Census, American Fact Finder, factfinder.census.gov, Tables QT-03 and P048, August 2001. (Additional resources: www.census.gov) TRANSPORTATION ENERGY DATA BOOK: EDITION 22—2002 11–17
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Center for Transportation Analysis
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Users of the Transportation Energy
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vi TABLE OF CONTENTS (Continued) Ta
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viii TABLE OF CONTENTS (Continued)
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x TABLE OF CONTENTS (Continued) CHA
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xii TABLE OF CONTENTS (Continued) T
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xiv TABLE OF CONTENTS (Continued) T
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xvi TRANSPORTATION ENERGY DATA BOOK
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xviii TRANSPORTATION ENERGY DATA BO
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xx TRANSPORTATION ENERGY DATA BOOK:
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xxii TRANSPORTATION ENERGY DATA BOO
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1-2 Although the world has consumed
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1-4 This table shows petroleum prod
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1-6 Figure 1.2. World Oil Reserves,
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1-8 This chart shows the volatility
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1-10 a First two quarters of 2001.
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1-12 Other parts of the world refin
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1-14 When crude oil and other hydro
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1-16 The U.S. share of the world’
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1-18 Transportation accounts for mo
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Source Chapter 2 Energy Summary Sta
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The Energy Information Administrati
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Oxygenates are blended with gasolin
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The 1999 data have been revised to
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About 22% of transportation energy
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The Federal Highway Administration
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Nearly all of the fuel ethanol used
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Great care should be taken when com
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Figure 2.3. Energy Intensities for
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Great care should be taken when com
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Chapter 3 Greenhouse Gas Emissions
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Global Warming Potentials (GWP) wer
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Gases which contain carbon can be m
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The Greenhouse Gases, Regulated Emi
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GV: FRFG (btu/mile or grams/mile) T
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Source Chapter 4 Criteria Air Pollu
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The transportation sector accounted
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Historically, the transportation se
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Acronyms and Terms Used on Table 4.
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Table 4. 13 (Continued) Fuel-Cycle
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Table 4.14 Tier 2 Emission Standard
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TRANSPORTATION ENERGY DATA BOOK: ED
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Table 4.18 Federal Exhaust Emission
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California's Low-Emission Vehicle r
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5-6 Though the cost of crude oil ce
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5-8 The fuel prices shown here are
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5-10 Table 5.7 State Taxes on Motor
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5-12 As of January 2001, only five
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5-14 In current dollars, import car
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5-18 In 1999 there were 7.7 employe
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5-20 Eleven percent of employed civ
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6-4 VEHICLES IN USE Both the Federa
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6-6 The line on this graph shows th
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6-8 The trend of using two-axle, fo
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6-12 The average age of trucks (cla
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7-2 The Federal Highway Administrat
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7-4 Because data on Class 2b trucks
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7-6 In 2000, light trucks, which in
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7-8 Light truck sales have more tha
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7-10 This graph shows the emergence
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7-12 Table 7.11 Sales-Weighted Engi
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7-14 The sales-weighted interior sp
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7-16 The average auto lost over 300
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7-18 The number of conventional ref
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7-20 The Corporate Average Fuel Eco
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7-22 Consumers must pay the Gas Guz
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7-24 Fuel Economy by Vehicle Speed
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7-26 The two earlier studies by the
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7-28 Of the tested vehicles, the 19
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7-30 The New York Test Cycle was de
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7-32 Researchers at Argonne Nationa
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Page 176 and 177: Source Chapter 8 Heavy Vehicles and
Page 178 and 179: Combination trucks include all truc
Page 180 and 181: Vehicle Inventory and Use Survey Th
Page 182 and 183: As expected, most light trucks trav
Page 184 and 185: In 1997 nearly 60% of all truck fle
Page 186 and 187: Commodity Flow Survey The Commodity
Page 188 and 189: Industries covered by the 1997 Comm
Page 190 and 191: There are currently not many source
Page 192 and 193: 9-2 Alternative Fuels The U.S. Depa
Page 194 and 195: 9-4 Nearly 90% of private alternati
Page 196 and 197: 9-6 This list includes public and p
Page 198 and 199: 9-8 The Honda Insight, Civic Hybrid
Page 200 and 201: 10-2 Significant changes have been
Page 202 and 203: 10-4 The average length of service
Page 204 and 205: 10-6 Table 10.5 Federal Government
Page 206 and 207: 10-8 The Energy Policy Act of 1992
Page 208 and 209: 11-2 Vehicle-miles are growing at a
Page 210 and 211: TRANSPORTATION ENERGY DATA BOOK: ED
Page 212 and 213: 11-6 1995 Nationwide Personal Trans
Page 214 and 215: 11-8 The 1995 NPTS data should be c
Page 216 and 217: 11-10 Vans and sport utility vehicl
Page 218 and 219: 11-12 Less than 27% of all househol
Page 220 and 221: 11-14 Historically, the data from t
Page 224 and 225: 11-18 Sales of bicycles with wheel
Page 226 and 227: 11-20 1995 American Travel Survey T
Page 228 and 229: 11-22 Those with a household income
Page 232 and 233: 12-4 In the early seventies, domest
Page 236 and 237: 12-8 The Interstate Commerce Commis
Page 238 and 239: 12-10 The “other” category, whi
Page 240 and 241: 12-12 The National Railroad Passeng
Page 242 and 243: 12-14 This table on transit rail op
Page 244 and 245: A-2 List of Abbreviations Used in A
Page 246 and 247: A-4 Motorcycles Buses DOT, FHWA, Hi
Page 248 and 249: A-6 Trucks Light Trucks: DOT, FHWA,
Page 250 and 251: A-8 Off-highway energy use Diesel:
Page 252 and 253: A-10 Domestic and International Air
Page 254 and 255: A-12 Recreational Boating: Fuel use
Page 256 and 257: A-14 Year Natural gas (million cubi
Page 258 and 259: A-16 Passenger: Commuter - APTA, 20
Page 260 and 261: A-18 Calculation of Million Barrels
Page 262 and 263: A-20 Motorcycles Number of vehicles
Page 264 and 265: A-22 Transit Number of vehicles, ve
Page 266 and 267: A-24 Light trucks Btu per vehicle-m
Page 268 and 269: A-26 Truck Freight Movement and Ene
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A-30 Then, the number of trucks in
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A-32 Sales - Domestic and import to
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A-34 Light Fleet Vehicle Travel Aut
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APPENDIX B CONVERSIONS A Note About
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Table B.2 Fuel Equivalents 1 millio
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Table B.5 Distance and Velocity Con
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FROM Horsepower Kilowatts Table B.8
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Table B.10 Fuel Efficiency Conversi
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Table B.12 Metric Units and Abbrevi
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APPENDIX C CENSUS DIVISIONS AND REG
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GLOSSARY Acceleration power - Measu
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Bunkering fuels - Fuels stored in s
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Crude oil imports - The volume of c
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volume. There are other fuels that
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Kerosene - A petroleum distillate i
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Natural gas, wet: The volume of nat
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of petroleum products, and the prim
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Sales period - October 1 of the pre
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Vehicle Inventory and Use Survey -
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I-2 Acquisitions Federal Fleet Vehi
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I-4 Average Annual Expenditures of
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I-6 Certificated Summary Statistics
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I-8 Consumption (continued) U.S. Ca
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I-10 Distance Long-Distance Trips b
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I-12 Emissions World Carbon Emissio
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I-14 Exhaust (continued) Federal Ex
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I-16 Fuel-Cycle Energy and Greenhou
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I-18 Tax Receipts from the Sale of
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I-20 Tonnage Statistics for Domesti
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I-22 Vehicle-Miles by Trip Purpose,
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I-24 Occupant Fatalities by Vehicle
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I-26 PM PMT Policy United States Pe
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I-28 Summary Statistics for Commute
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I-30 versus Sales-Weighted Fuel Eco
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I-32 Federal Exhaust Emission Certi
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I-34 Surveys Growth of Freight in t
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I-36 Trips Truck Household 1969, 19
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I-38 Vehicle-Miles by Trip Purpose,
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I-40 Weighted Sales-Weighted Engine
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TRANSPORTATION ENERGY DATA BOOK: EDITION 22 - Center for ...

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