An increasing number of people from developing nations are making their first car purchases. The principle problem this causes is traffic congestion and the most viable solution is better public transport. The primary dilemma developing countries face when their citizens start to buy cars is traffic jams. This is because people’s wealth has grown faster than the infrastructure and this means that roads that were built for bikes or a limited number of cars are suddenly clogged with a line of vehicles during peak times. The result of this is people getting stuck in traffic for a prolonged period of time during rush hour. For example, most roads in Ho Chi Minh City were built to carry bikes only, but now there are up to 5,000 new cars added to the streets a month and it now takes up to half an hour to travel one kilometre within the city centre. A solution to the problem of overcrowding on the roads is to build a sustainable public transport system. This could s...