Using alternative modes of transportation, such as bikes, buses, or trains can reduce GHG emissions and decrease wasted time and money. In 2019, traffic congestion caused Americans to spend an extra 8.7 billion hours on roads and buy an additional 3.5 billion gallons of gas.Combine errands (trip chaining) to avoid unnecessary driving. Roughly one-fifth of vehicle trips are shopping-related.3 Joining a carpool can help lower household fuel costs, prevent GHG emissions, and reduce traffic congestion. commuted by driving alone, and only 9% of workers carpooled (a drop from 19.7% in 1980). 3 Consider telecommuting or working from home if possible. Driving to/from work represents 30% of vehicle miles driven, and the average commute is 12 miles. Solutions and Sustainable Alternatives Reduce Vehicle Miles Traveled Total Life Cycle Burdens, 2014 Mid-Size Sedan 12 Vehicle lifetime energy use for fuel production and vehicle operations is 1.22 and 4.54 MJ/mi, respectively, while energy use for material production, manufacturing, maintenance, and end-of-life combined is only 0.56 MJ/mi. Most of these impacts are due to fuel production and vehicle operations. ![]() 11Ī typical passenger car is responsible for various burdens during its lifetime (raw material extraction through end-of-life). transportation emissions and 16% of total U.S. In 2020, passenger cars and light-duty trucks were responsible for 618 million metric tons CO 2e and 316 million metric tons CO 2e, respectively, together making up 57% of U.S.greenhouse gas emissions in 2020-1,628 million metric tons CO 2e. The transportation sector accounted for 27% of U.S.In 2021, 95% of total primary energy used for transportation came from fossil fuels 90% of total primary energy was from petroleum.In 2019, American cars and light trucks used 15.1 quadrillion Btus of energy, representing 15% of total U.S.energy used for transportation increased by 1 percent. Since 1990, the energy use in the transportation sector grew by 20%, though the share of U.S. The transportation sector makes up 28% of total U.S.has some of the lowest fuel economy standards of any industrialized nation, well below the European Union, China, and Japan. Given the legislation in place, the U.S. ![]() The average fuel economy for a 2020 model year vehicle was 25.4 mpg: 30.7 mpg for a new passenger car (sedan/wagon and car SUV) and 22.6 mpg for a new truck (truck SUV, minivan/van, and pickup).The average vehicle fleet fuel economy peaked at 22.0 miles per gallon (mpg) in 1987, declined until the early 2000s, then increased again surpassing 22.0 mpg in 2009.had 276 million registered vehicles and 228 million licensed drivers. In 2019, average car occupancy was 1.5 persons per vehicle.average vehicle occupancy was 1.87 persons per vehicle. 69% of the total annual vehicle miles traveled in the U.S.Vehicle miles traveled (VMT) increased 35% over the same time period. population increased 35% from 1990 to 2022. passenger miles traveled in 2020 were 4.9 trillion. 3 The transportation consumption patterns that follow indicate that the current system is unsustainable. 2,3 The countries with the most growth in registered cars since 1990 are China, India, and Indonesia, with average change of 18%, 9.8%, and 9.6%, respectively. ![]() has just over 4% of the world’s population, but has 12% of the world’s cars, compared to 19.6% in China, 5.7% in Japan, 4.4% in Germany, and 4.9% in Russia. In the U.S., the predominant mode of travel is by automobile and light truck, accounting for about 87% of passenger miles traveled in 2020.
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