The table and the bar chart give information about the modes of transportation used for traveling to work in Houston, Texas.The table compares the percentage of people who use each form of transport and their average age.Meanwhile,the bar chart illustrates the number of CO2 emissions from different form of transport in kilograms per person per kilometre.
Overall,it is noticeable that many people who traveled by car with one person was the most used for commuting to work,this is main cause of CO2 emission.Work by bicycle or on foot is the best for the environment, the percentage of travelers is the smallest.
As we can see in the table,car with only person have the highest proportion at around 48 percent with an average age is 43 years old.Whereas travellers who commute to work by bicycle or walk have the lowest percentage with only 4 percent,beside they actually have the youngest average age, which is an average of just 39 years old.As for train or bus,it took 37 percent of commuters and have the highest average age is 47 years old.
Move to the bar chart,it can seen that a car without passengers release the highest quantity of CO2 to the environment with around 0.33 kilogram per person per kilometer.But compared to a car with four people is release extremely low of C02 just only about 0.09 kilogram per person per kilometer.Using buses and trains has the lowest emissions, with an average of only 0.015 kilograms of CO₂ per kilometer. Finally, the lowest emissions of all are achieved through cycling or walking, which is practically zero.