What are the characteristics of traditional large scale industrial region?

Explanation

Traditional large scale industrial regions are based on heavy industry, often located near coal-fields and engaged in metal smelting, heavy engineering, chemical manufacture or textile production. These industries are now known as smokestack industries. Traditional industrial regions can be recognised by:
High proportion of employment in manufacturing industry. High-density housing, often of inferior type, and poor services. Unattractive environment, for example, pollution, waste heaps, and so on.
Problems of unemployment, emigration and derelict land areas caused by closure of factories because of a worldwide fall in demand.