Informatics Publishing Limited

Sunil Kumar Roy ¹

Affiliations
1 Calcutta Metropolitan Development Authority, IN

Abstract

Urban transportation planning methodology developed in affluent western cities involving sophisticated mathematical modelling & computer technology has little relevance to the cities of developing countries because the uncertainty of the change in the economic & social structure as well as land use & physical conditions severely restrict the applicability of any predictive methodology.

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Sunil Kumar Roy ¹, Amiya Kumar Bandopadhyaya ¹

Affiliations
1 Calcutta Metropolitan Planning Organisation, IN

Abstract

Traffic congestion in recent years has become an inseparable element of urban transportation. Traffic congestion occurs whenever the free flow of traffic is interrupted. The magnitude of the congestion depends upon the degree of interruption. The interruption again may be created by a number of different factors. These factors may be broadly classified as roadway factors, vehicle factors and human factors. A basic defect of the road system like poor geometries or bad intersection may be responsible for creating congestion. On the other side, congestion may occur, due to a disabled, vehicle on roadway or due to driver indiscipline. Thus congestion is not the cause but the effect, it is in fact a symptom that indicates a traffic disorder. Traffic congestion is like a crack in a beam or structure reflecting the failure of the system.

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