How real‐world driving cycle differs in heterogeneous traffic conditions: a case study in Delhi
| DOI | https://doi.org/10.1108/20425941311313119 |
| Date | 01 January 2013 |
| Pages | 66-80 |
| Published date | 01 January 2013 |
| Author | Ravindra Kumar,Purnima Parida,Bhujang Kanga Durai,Wafaa Saleh |
| Subject Matter | Public policy & environmental management |
How real-world driving cycle
differs in heterogeneous traffic
conditions: a case study in Delhi
Ravindra Kumar, Purnima Parida and Bhujang Kanga Durai
CSIR-Central Road Research Institute, New Delhi, India, and
Wafaa Saleh
Transport Research Institute, Edinburgh Napier University, Edinburgh, UK
Abstract
Purpose – Heterogeneous traffic in Delhi is complex to understand due its typical composition, speed
acceleration, cruising, deceleration and idling activity in flow. To arrive at accurate emission factor
estimates and implement proper traffic demand management there is need to understand microscopic
vehicle operation activity. The vehicular operations are easily quantified by understanding driving
cycle of the particular vehicle in real world driving conditions. The purpose of this paper is to present a
study on the understanding of driving conditions in India that are heterogeneous in nature.
Design/methodology/approach – To understand the heterogeneity, the driving cycle data were
collected using GPS on different types of both motorised and non-motorized modes of transport,
e.g. car, auto rickshaw, bus, motorcycle and cycle rickshaw and bicycle on different traffic corridors
in Delhi.
Findings – Research findings show that driving cycles differ for different types of vehicles. Therefore,
each mode should be encouraged based on their average speed-time sequence in any traffic mix.
The real-world driving cycle will be also useful for the understanding of fuel consumption and
emissions in real-world scenarios, in order to control vehicle emissions properly, achieve fuel efficiency
and to obtain a more sustainable transport system.
Originality/value – This type of research has not been carried out previously in any Indian city.
Keywords India, Traffic, Roadvehic les, Fuel consumption, Driving cycle, Emission,
Mixed traffic cycle, Heterogeneity
Paper type Research paper
Background
In many developed country like the USA, Europe, Japan driving cycle studies have
been developed for different vehicles under different road traffic conditions because
findings are immensely useful for understanding fuel consumption, emissions, the
planning and design of roadway systems and the operation of road traffic.
Understanding real-world traffic behavior regarding fuel consumption requires
quantification of some of the basic vehicular driving characteristic in terms of time
spent in different operating modes, speed and idling times. In general, emission and
fuel consumptions factor estimates are not known acc urately because emission factor
(EF) prediction in India is based on the modified Indian driving cycle, which is
developed based on the European driving cycle.
The current issue and full text archive of this journal is available at
www.emeraldinsight.com/2042-5945.htm
WorldJour nal of Science, Technology
and Sustainable Development
Vol. 10 No. 1, 2013
pp. 66-80
rEmeraldGroup Publishing Limited
2042-5945
DOI 10.1108/20425941311313119
The authors are thankful to the Director of CRRI New Delhi in publishing this paper, and
help rendered by Satyabir Singh, Kamini Gupta, TOB and Darshan Singh at CRRI is duly
acknowledged. The authors are indebted to CSIR Headquarters for funding this research under
the EMPOWER scheme.
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