The provided table illustrates the average distances that adults travelled annually using various means of transportation in 1977 and 2007.
Overall, over a 30-year period, the distances traveled by cars, trains, and taxis exhibited an upward trend, while the opposite was true for the other types of transport surveyed. Furthermore, throughout the timescale given, it is noticeable that the most common means of travel among adults was cars.
In 1977, regarding the annual distance, cars took the lead with the recorded distance at 3500 miles, followed by trains and buses, with their data standing at 900 miles and 800 miles, respectively. Concurrently, statistics indicated that adults walked 400 miles, which was twice as much as the distance traveled by taxis. Bicycles and motorcycles were the least preferred types of transport, each covering only 100 miles in 1977.
After 30 years, cars retained their dominance over the remaining means of travel, with the annual distance traveled increasing to 7100 miles, which doubled the distance recorded in 1977. Trains and taxis also experienced an upward trend, with taxi distances increasing fourfold, while train distances rose by 100 miles. Conversely, the distances traveled by buses and on foot decreased to 500 miles and 300 miles, respectively, whereas bicycles and motorcycles continued to have the lowest average annual distances, each recording figures below 100 miles in 2007.