The government will raise more tax in order for them to generate more revenue and the tax rate will be a progressive tax and they likely to use a highway than the poor since it links to the city area where they work. -People who have car in Thailand considered as a rich people, which means that the poor tend to use public transportation such as sky train and buses.-The government in Thailand is more likely use the revenue that they have to maximize their own interest according to public choice economics theory. -Hence, the government will spend that amount of revenue in order to gain the vote for the next election but not maximize the society interest