The table illustrates how the average annual mileage traveled by adults varies among different types of transportation in 1977 and 2007.
Overall, the distance traveled by cars, trains, and taxis underwent an upward trend, while the reserve pattern could be observed in the remaining modes. What is also notable from the chart is that the distance traveled by cars far exceeded that of others.
Regarding private travel modes, cars were the most prevalent, with 3500 miles traveled annually in 1997. After 30 years, this figure doubled, reaching 7100 miles. Following this was walking, which, however, experienced a drop from 400 to 300 miles eventually. At the bottom of the list were bicycles and motorcycles, as adults never traveled more than 100 miles using these vehicles in both surveyed years.
Among all public transportation, only the bus witnessed a decrease in the annual commuting distance by 300 miles. Conversely, the mileage of trains rose, albeit slightly, from 900 in 1977 to 1000 in 2007, thus maintaining its second rank. Taxi also followed a similar trend, but more pronounced, starting with 200 miles and subsequently increasing fourfold to 800 miles.
