Examples of the distribution pattern of the railway network in the country being influenced by physiographic and economic factors are: Physiographic Factors (i) The Northern Plains with their vast level land, high population density and rich agricultural resources provided the most favourable condition for growth of railways. (ii) The Himalayan mountain regions are unfavourable for the construction of railway lines due to high relief, undulating terrain and low traffic. (iii) It is difficult to lay railway tracks in the sandy plains of Western Rajasthan, Rann of Kutch. Economic Factors (i) The state with flexible laws supports the growth of railways. (ii) The places that are highly industrialised attract the development of railways. (iii) Since the growth of both is complimentary to each other, e.g., recently railway network is enhancing along the industrial corridors