There are many reasons for increased urban growth in the developing world. Some of which are:
However, there are many problems associated with rapid growth. These include unplanned housing (squatter settlements/shanty towns), dealing with urban waste, pollution and stress on infrastructure and the city's services.
Population growth has led to problems in many urban areas.
Traffic congestion is a major issue in developed and developing countries.
In developed world cities, there has been an increase in the number of cars on the road. As more people move to the edge of towns and cities, traffic congestion may get worse.
Many people will drive their cars into the city centre for work. Substantial numbers get there on newer, larger roads or motorways.
These roads then link up with older, narrower roads in the city centre. This causes a bottleneck and congestion. Many inner city areas, with a network of narrow roads and many junctions, cannot cope with the increased volume of traffic.
Further traffic issues include:
In developing countries, population growth in urban areas has exploded, leading to many people trying to access the cities for work. This situation is worsened by poor public transport. Developing world governments cannot afford to invest in the infrastructure, therefore roads are in disrepair.