the graph below shows the number of passenger railway journeys made in great britain between 1950 and 2004/5

The line chart illustrates how many trips are made by commuters in three different railways in the UK during the year 1950 – 2004. From an overall perspective, one of the most outstanding features is that there was a significant increase in the number of people using railways from 1950 to 2004. By the year 1950, the figure given for the National rail network appeared to be by far the highest one, with approximately 1, 000 million, which was followed by that of London Underground. Actually, these were found to be almost 700 million. Remarkably, the amount of passenger on National rail network had a peaked at around 1100 million in 1960 before decreased dramatically to nearly 700 million in 1980. Conversely, the figure recorde for London Underground fluctuated around 650 to 700 between 1950 and 1970, and then bottomed off 500 million in 1980. By this final year, the number of people travelled on National railway network was significantly lower than that on London Underground, with about 900 million and over 1000 million respectively. It is interesting to note that the light rail and metro systems carried fewer passengers than the other networks, with no more than 100 million from 1950 to 1980. However, there was a considerable rise in the number of passengers on that network for the next 24 years, to above 200 million.