The table gives information about travelers who go to Houston, Texas, while the bar chart shows the measurements of CO2 emitted by each types of transport. The data covers four types of transport: cycle/walk, bus/train, car with driver only and car with passengers.
The favorite transport used is self-drive car, which almost reaches fifty percent. Train/bus becomes the second most popular approximately forty percent, which is higher than car with passenger and cycle/walk. Furthermore, it also becomes the most famous transport among the oldest visitors who are aged forty seven years old in average. In contrast, cycle/walk are used by visitors within the younger age group around thirty nine years old. In addition, self-drive car and car with passengers are equally preferred by people with similar age approximately forty four years old.
The production of CO2 is dominated by self-drive car, which annually release 0.3 kilograms per person per kilometer. Besides, car with passengers only produce a quarter of what self-drive do. In contrast, the eco-friendly transport which produce less carbon dioxide are cycle/walk and bus/tram.