1. The Effect of Metro Expansions on Air Pollution in Delhi
- Author
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Goel, Deepti and Gupta, Sonam
- Subjects
PASSENGERS ,RAIL TRAVEL ,URBAN RAIL ,TAX ,INFRASTRUCTURE ,Miscellaneous [T28] ,RAIL TRANSIT ,POLLUTION CONTROL ,DEMAND FOR TRANSPORTATION ,CAR FUEL ,TRANSPORTATION POLICIES ,CONGESTION ,ROAD ,TRIPS ,DRIVERS ,RAIL NETWORK ,ROUTES ,TRIP ,India [L13] ,CARS ,ELASTICITIES ,EMISSIONS ,TAXIS ,VEHICLE ,TRANSPORT ECONOMICS ,DIESEL ,WATER POLLUTION ,METRO RAIL CORPORATION ,AVERAGE TRIP DISTANCE ,CAR ,TRANSPORT SECTOR ,HEAVY GOODS VEHICLES ,TOLL ,VEHICLE REGISTRATIONS ,EMISSIONS ANALYSIS ,COMMUTERS ,AIR POLLUTANTS ,PRIVATE VEHICLES ,RIDERSHIP ,POLLUTANT EMISSIONS ,PASSENGER TRAVEL ,RAIL SYSTEMS ,TRAFFIC OPERATIONS ,POLLUTION ,DRIVING RESTRICTIONS ,FARES ,EMISSION FACTORS ,BUSES ,COSTS PER PASSENGER MILE ,BUS SERVICES ,TRANSPORT INFRASTRUCTURE ,SAFETY OF PASSENGERS ,INTERSECTIONS ,RAIL ,MODE OF TRAVEL ,ELASTICITY ,MOTOR VEHICLES ,CAPITAL INTENSIVE PROJECTS ,MODERN TRANSPORT SYSTEM ,MASS RAPID TRANSIT ,TRUE ,PRIVATE TRAFFIC ,TRAVEL MODE ,POPULATION DENSITIES ,EMISSION STANDARDS ,EMISSIONS STANDARDS ,FREIGHT TRAFFIC ,NOISE POLLUTION ,RAPID TRANSIT ,RAIL PROJECT ,METRO RAIL ,HIGHWAYS ,RAIL TRANSIT CRITICISM ,COSTS ,ENVIRONMENTAL REGULATIONS ,TRAVEL BEHAVIOUR ,RAPID RAIL ,CLIMATE CHANGE ,RAIL LINES ,DEMAND FOR TRAVEL ,TRANSIT ,FUEL ,ACCESSIBILITY ,TRANSPORT POLICY INSTITUTE ,NOISE ,ACCIDENTS ,BUS OPERATORS ,CARBON CREDITS ,TRIP DISTANCE ,MODERN TRANSPORT ,AIR QUALITY STANDARDS ,ROUTE ,VEHICLE- KILOMETERS ,TRANSPORT SYSTEM ,ROADS ,GOODS VEHICLES ,NEIGHBORHOODS ,TREND ,TRANSIT SYSTEMS ,Science and Technology [T27] ,AIR ,SUBURBS ,POLICIES ,DRIVING ,TRANSPORT RESEARCH ,AIR POLLUTION ,TRAVEL ,SAFETY ,JOURNEY ,VEHICLES ,AVERAGE VEHICLE OCCUPANCY ,AMBIENT AIR POLLUTION ,SUBWAY ,PUBLIC TRANSPORT ,TRANSIT SYSTEM ,TRAVEL DEMAND ,ROAD CONGESTION ,RAIL TRANSIT SYSTEMS ,ROAD EMISSIONS ,BUS TRANSPORTATION ,TRAFFIC ,TRANSPORT INVESTMENT ,MEANS OF TRANSPORT ,VEHICLE OCCUPANCY ,BUS ,FREIGHT ,RIDERSHIP DATA ,ROLLING STOCK ,TRAVEL MODES ,RAIL PROJECTS ,BUS TRANSIT ,URBAN TRANSPORT ,TRUCKS ,URBAN BUS ,PUBLIC TRANSPORTATION ,CONGESTION PRICING ,CARBON MONOXIDE ,CONGESTION ON ROADS ,ECONOMIES OF SCALE ,TRANSPORT ,TRANSPORTATION ,TRAVEL ACTIVITY ,Commerce, communications, transport ,POPULATION DENSITY ,TRANSPORT POLICY ,TRAFFIC CONGESTION ,URBAN RAIL TRANSIT ,PUBLIC TRANSPORT INFRASTRUCTURE ,URBAN RAIL TRANSIT SYSTEMS ,COST- BENEFIT ANALYSIS ,EMISSION ,RAIL TRANSIT SYSTEM ,ROAD TRANSPORT - Abstract
The Delhi Metro (DM) is a mass rapid transit system serving the National Capital Region of India. It is also the world’s first rail project to earn carbon credits under the Clean Development Mechanism of the United Nations for reductions in CO2 emissions. Did the DM also lead to localized reduction in three transportation source pollutants? Looking at the period 2004–2006, one of the larger rail extensions of the DM led to a 34 percent reduction in localized CO at a major traffic intersection in the city. Results for NO2 are also suggestive of a decline, while those for PM25 are inconclusive due to missing data. These impacts of pollutant reductions are for the short run. A complete accounting of all long run costs and benefits should be done before building capital intensive metro rail projects.
- Published
- 2015