The road to work and air pollution
The given table and bar chart display the data about several categories of commuting pattern of people in Houston, Texas and how much the type of transportation contribute to the CO2 emission. Overall, it can be seen clearly that cars with only one person are the most common transportation mode and cause the highest emission of CO2 compared with the other means of transport.
Car with just driver break the record as the largest percentage of commuters at 48% while cycle/walk only stand at 4% as the lowest percentage of travellers. Nevertheless, car with one person only obtain the second position when it comes to the average age of traveller category. The highest proportion at this category is reached by train or bus at 47 with roughly similar number on each type of transport.
Apart from previous comparison, cycle or walk appears as the most environmentally friendly means of transport with zero emission. It is followed by bus or train with approximately only 0,01 kg of CO2 emission. Conversely, the most contributed on CO2 emission is seen on car with one person category which stand at 0,32 kg per person while sharing car category only release less than one-third of the highest emission.
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