The line graph illustrates the use of railway tracks by four countries from 1980 to 2010.
Overall, it can be seen that China and India exhibited an upward trend, with Russia and the USA witnessing a drop over the years. In general, China and India were at the lower end of the spectrum, whereas Russia and the USA maintained higher rates.
Initially, railway track lengths in the USA were 250,000 km , recording the highest figure in that time. Nevertheless, the USA had a gradual decline over the years: by 2010, it only used 220,000 km. Despite its drop, it still remained the largest number in 2010. Russia, starting with 150,000 km, exhibited a similar trend to the US. Decreasing continuously, its track lengths dropped to approximately 130,000 kilometers.
On the other hand, China and India had a significant growth over the years. Reporting around 40,000 kilometers at the start, India had an increase to roughly 70,000 by the end of the period. While both China and India exhibited an upward trend, China saw the most rapid increase.Starting at about 20,000 kilometers, China was already equal to India in 1990, recording 50,000 kilometers. By 2010, it surged to 90,000 kilometers, overtaking India.
