There are more people purchase cars the first time in their life in developing countries. The principal problems this causes are pollution and traffic congestion, and the most viable solution is developing better public transportation.
The primary issue developing countries face when their citizens start to buy cars is increased pollution. This occurs as a result of the cars consumed large amount of petrol, and caused emission of carbon dioxide and other harmful gases to the air. For example, due to the bad air quality, a lot of children in China have respiratory diseases in winter, some of them even suffer the illness for about nearly one month.
The greater number of vehicles on the road is also responsible for a rise in traffic jams. This is because people purchase too many vehicles. Even the governments tried to build more wider roads, but the traffic congestion is still serious problem in many developing nations. For example, many families in China have more than two cars, and in the peak time people usually need to wait about half an hour to commute to work place.
A solution to these problems is to building better public transport. This would solve the problems, and let more people commute from home to office by subway, and buses. For example, in Shanghai downtown center, since the public transportation is very convenient. Most people go to work by metros and buses, so people spend less time in commuting compare to rural area in Shanghai. By contract, in peak hours, the rural area traffic jams are more serious problem because people have to drive to work since the public transportation is poor and there are less subway lines and bus stops.
In conclusion, the increasing number of vehicles in the developing countries causes serious pollution and traffic jams, and the best way to solve the problem is providing people better public means of transportation.