As you conduct research, you are likely to realise that the topic that you have focused on is more complex than you realised when you first defined your research question. The research is still valid even though you are now aware of the greater size and complexity of the problem. A crucial skill of the researcher is to define clearly the boundaries of their research and to stick to them . You may need to refer to wider concerns; to a related field of literature; or to alternative methodology; but you must not be diverted into spending too much time investigating relevant, related, but distinctly separate fields.
The chart clearly shows that the most of the people taking public transports are from the age of 15-30. The next group of people who take this transport are the people of aging between 30 and 45 years. Almost no people aging below 15 take the public transport and there are a few people aging 45 to 60 years old take the transports. People aging above 60 do use public transport but they are very few. It means the children are not independent, they depend on their parents. So, they normally do not travel on public transports. The do not usually travel much. If they even do, they are accompanied by their parents. The old people do less travelling, so their percent is also low. The people, who are young aging between 15 to 45 years, are the ones who take the public transport most. It is because they go to work, attain classes, and do all other travelling by the public transports.
Ralph Henson has been programme leader for this course since 1992. He graduated with a first class Honours degree in Mathematics from the University of Warwick in 1974 and an MSc in Transport Engineering and Planning from the University of Salford in 1985. After brief spells with the Post Office and with Trafford Borough Council, he joined Merseyside County Council in 1977 and had responsibility for traffic surveys, accident investigations and analysis and special projects before leaving to join the University of Salford as a lecturer in Transport Engineering in 1985.