A government announces it will impose an indirect tax on the price of petrol because it wants to discourage travel by car and encourage the use of bus and rail services instead. This, it believes, will help to reduce traffic congestion and harmful exhaust emissions

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If the government announces it will impose an indirect tax on the price of petrol because it wants to discourage travel by car and encourage the use of bus and rail services instead, it had to make sure that the impact will have the expected benefits because that could not always be the case.  

Some other considerations need to be made for this to happen. For instance, if the government wants to dissuade people to use their cars, the government has to make sure that the public transportation system is in optimal conditions, it is safe to ride, and can guarantee the transportation times for people to be on time in their jobs.

Otherwise, people will still be driving their cars because they think that using cars is a more safe and better way to travel.

Public transportation also has to comply with strict pollution emissions controls.

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