vehicles & mileage
DESCRIPTION
Vehicles & Mileage. Comparison between Vehicle Population and Miles Driven Trends. 1970: LDGV&M were 81.6% of vehicle population and accounted for 81.7% of miles driven. 1970: LDGT were 12.7% of vehicle population and accounted for 11% of miles driven. - PowerPoint PPT PresentationTRANSCRIPT
Vehicles & Mileage
Comparison between Vehicle Population and Miles Driven Trends
• 1970: LDGV&M were 81.6% of vehicle population and accounted for 81.7% of miles driven.
• 1970: LDGT were 12.7% of vehicle population and accounted for 11% of miles driven.
• 2002: LDGV&M were 59.2% of vehicle population and accounted for 57.7% of miles driven.
• 2002: LDGT were 35.9% of vehicle population and accounted for 33.6% of miles driven.
• It would seem that vehicle population and miles driven have a one to one relationship.
Miles Driven
0
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
Mill
ion
Mile
s
Total Light-Duty Gas Vehicles & MotorcyclesLight-Duty Gas Trucks Heavy-Duty Gas VehiclesDiesels
Number of Vehicles
0
50,000,000
100,000,000
150,000,000
200,000,000
250,000,000
Veh
icle
s
Total Light-Duty Gas Vehicles & Motorcycles
Light-Duty Gas Trucks Heavy-Duty Gas Vehicles
Diesels
Comparison between Vehicle Population and Miles Driven Trends
• 1970-1990: The rate of vehicle population for LDGV&M was 2.2 million/year.• 1992-2002: The rate of vehicle population for LDGV&M was cut in half to 1.1
million/year.• 1970-1984: The rate of vehicle population for LDGT was 1.3 million/year.• 1984-2002: The rate of vehicle population for LDGT more than doubled to
2.9million/year.• Although the LDGV&M population has always been greater than the LDGT
population, if the most recent rates continue, this trend may be broken (the same can be said for miles driven).
• A dip in LGV&M population was seen from 1990-1992, which corresponds to a dip in miles driven from 1990-1995
• After 1984, the LDGT population began to rapidly increase, the same is true for miles driven.
The Miles Per Vehicle Cofactor
• 1974-2000: LDGT were driven more than LDGV&M on a per vehicle basis.• 2000-2002: LDGV&M began to exceed LDGT again as from 1970-1974.• 1972-1989: A decrease is seen for LDGV&M, while the increasing trend begins
in 1980.
Miles/Vehicle
0
0.002
0.004
0.006
0.008
0.01
0.012
0.014
0.016
1965 1970 1975 1980 1985 1990 1995 2000 2005
Total Light-Duty Gas Vehicles & Motorcycles
Light-Duty Gas Trucks Heavy-Duty Gas Vehicles
Mileage & Fuel Consumption
Miles Driven
0
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
Mill
ion
Mile
s
Total Light-Duty Gas Vehicles & MotorcyclesLight-Duty Gas Trucks Heavy-Duty Gas VehiclesDiesels
Fuel Consumption
0
20000
40000
60000
80000
100000
120000
140000
160000
180000
1960 1970 1980 1990 2000 2010
Mill
ion
Gal
lon
s
Total Light-Duty Gas Vehicles & MotorcyclesLight-Duty Gas Trucks Heavy-Duty Gas VehiclesDiesels
Comparison between Miles Driven and Fuel Consumption
• 1970: LDGV&M accounted for 72.5% of fuel consumption as compared to 13.2% for LDGT.• 2002: LDGV&M accounted for only 44.2% of fuel consumption as compared to 32.4% for LDGT.• LDGT may eventually account for more fuel consumption than LDGV&M.• The dips in fuel consumption while the miles driven steadily increases, shows that there is not a
one to one relationship.
Gallon/Mile
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
GPM
Total Light-Duty Gas Vehicles & MotorcyclesLight-Duty Gas Trucks Heavy-Duty Gas VehiclesDiesels
The Gallons Per Mile Cofactor
• LDGT: Fuel consumption has always been on the rise except for a dip between 1979-1982.
• LDGV&M: Fuel consumption dips between 1973-1976, the maximum is seen in 1978, and this level is only beginning to be reached since the dip between 1989-1991.
• Miles driven has an continually increasing trend, which explains why this cofactor is essentially a downward trend.
Vehicles & Fuel Consumption
Number of Vehicles
0
50,000,000
100,000,000
150,000,000
200,000,000
250,000,000
Veh
icle
s
Total Light-Duty Gas Vehicles & Motorcycles
Light-Duty Gas Trucks Heavy-Duty Gas Vehicles
Diesels
Fue l Consumption
0
20000
40000
60000
80000
100000
120000
140000
160000
180000
1960 1970 1980 1990 2000 2010
Mill
ion
Gal
lon
s
Total Light-Duty Gas Vehicles & MotorcyclesLight-Duty Gas Trucks Heavy-Duty Gas VehiclesDiesels
The Comparison between Vehicle Population and Fuel Consumption
The Ratio of Vehicles to GallonsVehicles /Gallon
0
500
1,000
1,500
2,000
2,500
1960 1970 1980 1990 2000 2010
VP
G
T otal Light-Duty Gas V ehi cles & M otor cycles
Light-Duty Gas T r ucks Heavy-Duty Gas V ehi cles
Diesel s