A larger population density will help reduce the average costs of the transport network. Areas of high population density have not seen the food shortages because of improved yields from agriculture and the ability to trade food. Economic growth will be comparatively more than low density area.

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The biggest problem of higher population density is the potential loss of 'green-belt' land impacting on quality of life. Many people value green spaces as an important factor in the quality of life. If we lose all the countryside to roads and housing, then this reduces the quality of life. Limit to new roads.

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Advantages:- More human population so more workers in different fields, More economy growth, More taxpayers, More funds, More diversity, More share of people for particular programs.

Disadvantages:- Population affects the environment through the use of natural resources and the production of wastes. 

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