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Lookup NU author(s): Professor Margaret Carol Bell CBE,
Dr Paul Goodman
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© 2021 Elsevier LtdIn this study, researchers have explored real-world driving conditions and developed emission factors for 58 passenger cars using on-board emission measurement technique while driving on five different routes in Delhi. The measured average emission factors of CO, HC, and NO were 3.99, 0.34, and 0.54 g/km for diesel vehicles, 7.26, 0.17, and 0.62 for petrol vehicles respectively. Road, traffic, vehicle type, and driving characteristics affect the quantity of emissions released. However, speed and acceleration significantly impact emission rates increasing with the increase in speed and acceleration. Also, emissions were minimal at 40–60 kmph and −0.5–0.5 m/s2. The estimated city-wide CO, HC, and NO emissions were 60.8, 4.8, and 9.72tonnes/day. These results demonstrate the importance of monitoring the real-world exhaust emissions given the substantial difference between test cycle measurements used for compliance testing of new vehicles.
Author(s): Kuppili SK, Dheeraj Alshetty V, Diya M, Shiva Nagendra SM, Ramadurai G, Ramesh A, Gulia S, Namdeo A, Maji K, Bell M, Goodman P, Hayes E, Barnes J, Longhurst J, De Vito L
Publication type: Article
Publication status: Published
Journal: Transportation Research Part D: Transport and Environment
Print publication date: 01/06/2021
Online publication date: 30/04/2021
Acceptance date: 02/04/2018
ISSN (print): 1361-9209
ISSN (electronic): 1879-2340
Publisher: Elsevier Ltd
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