There is no doubt that Manila is densely populated city, where the traffic from automobiles and people alike is rapidly growing. Many areas that have been visited in the city, such as the poor neighbourhood of Tondo, have a population density of over 80,000 people per square kilometer. Small and cramped living spaces in the city amounts to a high population density. If you are overwhelmed that houses are forced together so closely in cities like Sydney and Melbourne, then you won't believe what it's like in some parts of Manila. Houses in the slums are so close together that there is barely any place to move around in, let alone live in. The main reason for this is a problem that keeps arising, poor planning.