Abstract
Eco-driving is becoming more widespread as individual car-use behaviour is a cost-effective way of improving vehicle fuel economy and reducing CO2 emissions. The literature shows a wide range of efficiencies as a result of eco-driving, depending on route selection, traffic characteristic, road slope, and the specific impact evaluation method. This paper follows this line of research and assesses the impact of an eco-driving training programme on fuel savings and reduction of CO2 emissions in a well-designed field trial, focusing on the specific impacts according to road type. The methodology includes a comprehensive trial on different types of road sections under various traffic conditions; a processed dataset using R codes to integrate, clean, and process all the information collected; and a systematic method to evaluate the overall and specific impacts of eco-driving. The final results show a general fuel saving after eco-driving training of up to an average of 6.3% regardless of fuel and road type. Driving performance, as represented by selected parameters (average and maximum RPM, average and maximum speed, aggressive acceleration/deceleration), changed significantly after the training. The highest fuel savings are achieved on major arterial road sections with a certain number of roundabouts and pedestrian crossings. This work contributes to an understanding of the key factors for eco-driving efficiency according to road type under real traffic conditions. It offers greater insights for policymakers in road transport planning and for drivers when applying eco-driving techniques.
Highlights
Recent decades have seen an ongoing debate on how and to what extent different policies and strategies mitigate the transport sector’s impact on climate change
They point out the lack of an effective experimental design to identify the key variables that impact fuel savings and emissions due to eco-driving performance. This paper follows this line of research: it assesses the impact of an eco-driving training programme on fuel savings and CO2 emissions through a comprehensive road trial focused on the specific impacts by road type
The value related to CO2 emissions was converted from the value of fuel consumption using the emission factor extracted from the “Environmental Monitoring, Evaluation and Protection (EMEP)”/“European Environment Agency (EEA)” air pollutant emission inventory guidebook [34] for petrol and diesel light vehicles
Summary
Recent decades have seen an ongoing debate on how and to what extent different policies and strategies mitigate the transport sector’s impact on climate change. A better understanding is required about the trade-off between fuel economy, pollutant emissions, and travel time under different road conditions They point out the lack of an effective experimental design to identify the key variables that impact fuel savings and emissions due to eco-driving performance. This paper follows this line of research: it assesses the impact of an eco-driving training programme on fuel savings and CO2 emissions through a comprehensive road trial focused on the specific impacts by road type (i.e., highway, urban arterial road, and local street). The article ends with the main findings and some policy recommendations
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