4.7 Article

Development of bus driving cycles using a cost effective data collection approach

期刊

SUSTAINABLE CITIES AND SOCIETY
卷 69, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.scs.2021.102854

关键词

Bus driving patterns; Driving cycles; Vehicle Specific Power (VSP); GPS data collection; Bus driving behaviours; Bus driving characteristics

资金

  1. College of Professional and Continuing Education, an affiliate of The Hong Kong Polytechnic University

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This study developed a set of bus driving cycles using a cost effective data collection approach, identifying five significantly different bus driving patterns in Hong Kong and developing separate driving cycles for each pattern. The developed cycles can be used for emission and energy consumption estimations for traditional/electric buses under specific driving patterns.
Driving cycles are important for vehicle performance evaluations including emissions and fuel/energy consumption estimations. The franchised bus services are currently being extensively used in Hong Kong, however, no driving cycle has been developed specifically for buses. Therefore, this study has developed a set of bus driving cycles using a cost effective data collection approach. On-road bus speed data were collected using the built-in GPS function of smartphones Based on an analysis of the structure of the franchised bus route network and the statistical properties of the collected bus speed data, five significantly different bus driving patterns in Hong Kong were identified. Separate driving cycles were then developed for each identified pattern namely Pattern I(a): Inter-districts; Pattern I(b): Within a District; Pattern II(a): Peaks; Pattern II(b) Off Peak (Day); and Pattern II(c): Off Peak (Night). These patterns indicated significantly longer idling and more aggressive acceleration/deceleration characteristics as compared to other international bus driving cycles. Bus operators and regulating authorities can select appropriate cycles for traditional/electric bus emission and/or energy consumption estimations under specific bus driving patterns. The developed cycles can also fill the knowledge gap in providing a representative platform for the bus emissions testing in Hong Kong.

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