I read your article about traffic congestion two days ago. I agree with you that the large number of cars on the roads is another problem that we have to deal with.
Well, there are various examples which show the seriousness of the problem. People use their cars more and more to get where they want even if this is two minutes walk. As a result, people are becoming lazier. In addition, nowadays there are two to three cars pre family.
In order to solve the traffic problem we can take the following measures. First of all, we can dedicate lanes for bikes and start using them. In this way, people can exercise, save money and avoid traffic jams. Also, we can charge cars to enter the city centre or build more car parks where people can leave their cars and use public transport. Moreover, means of public transport must be punctual and cheap. My last suggestion is car pooling.
In conclusion, from my point of view, we should all realize the problem and take action to reduce it.