ENERGY DEMAND AND ENVIRONMENTAL IMPLICATIONS IN URBAN TRANSPORT - CASE OF DELHI

A simple model of passenger transport in the city of Delhi has been de veloped using a computer-based software called-long Range Energy Alter natives Planning (LEAP) and the associated Environmental Database (EDB ) model. The hierarchical structure of LEAP represents the traffic pat terns in terms of passenger travel demand, mode (rail/road), type of v ehicle and occupancy (persons per vehicle). Transport database in Delh i together with fuel consumption values for the vehicle types, formed the basis of the transport demand and energy consumption calculations. Emission factors corresponding to the actual vehicle types and drivin g conditions in Delhi is introduced into the EDB and linked to the ene rgy consumption values for estimating total emission of CO, HC, NOx, S O2, Pb and TSP. The LEAP model is used to estimate total energy demand and the vehicular emissions for the base year-1990/91 and extrapolate for the future-1994/95, 2000/01, 2004/05 and 2009/10, respectively. T he model is run under five alternative scenarios to study the impact o f different urban transport policy initiatives that would reduce total energy requirement in the transport sector of Delhi and also reduce e mission. The prime objective is to arrive at an optimal transport poli cy which limits the future growth of fuel consumption as well as air p ollution.