Green Eco-Driving Effects in Non-Congested Cities

Self Cite

Eco-driving is becoming more widespread as individual car-use behaviour is a cost-effective way of improving vehicle fuel economy and reducing CO 2 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 CO 2 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. of information and communication technologies (ICT) to improve transport efficiency [3]. However, the investments in these strategies are huge, and the implementations are usually complex and involve multiple stakeholders. Research has shown that the potential improvements in GHG reduction from advanced engine and vehicle technologies accounted for only 4-10% and 2-8%, respectively [4]. Meanwhile, eco-driving is becoming more widespread, as individual car-use behaviour is more cost-effective and could improve vehicle fuel economy and reduce CO 2 emissions by up to 45% [5].At the operational level, eco-driving is defined as a strategy which primarily seeks to change driving habits by following easily typified rules, i.e., using vehicle inertia, accelerating and braking smoothly, maintaining a steady speed, shifting gears at low RPM, anticipating traffic, etc. [6,7]. Eco-driving can not only improve fuel efficiency but also reduce road accidents and noise as a result of drivers' calmer driving patterns [8].The literature shows that the efficiency of eco-driving varies widely depending on the experimental design, the external circumstances, and the methods of impact evaluation [9]. The fuel savings before and after receiving eco-driving instruction in several field trials revealed that fuel reduction varies from 5% in the case of a single monitored vehicle [10] to 25% immediately after drivers were enrolled in a training course [9,11],...

Section: Policy Recommendationssupporting

confidence: 66%

Evaluation of Eco-Driving Training for Fuel Efficiency and Emissions Reduction According to Road Type

Wang

Boggio-Marzet

2018

Self Cite

“…HERA is based on a bottom-up methodology which combines an average speed consumption model adjusted with a segment gradient and information on the spatial distribution, by road segment, of vehicle activity with data on vehicle type (average annual daily traffic-AADT-), driving speeds (mean speed of light and heavy vehicles), physical characteristics of the road (length, gradient, number of lanes), and the composition of the fleet circulating along these roadway types. Since HERA is designed for interurban traffic, the transient process of traffic emission such as acceleration or deceleration is not captured, being more important for urban areas assessment [14,15]. HERA produces several outputs: annual GHG emissions and energy consumption (CO 2 eq/year and MJ/year, respectively), and emissions and energy intensity (CO 2 eq/veh-km and MJ/veh-km, respectively).…”

Section: Hera Methodology: Highway Emissions Assessmentmentioning

confidence: 99%

Towards Low-Carbon Interurban Road Strategies: Identifying Hot Spots Road Corridors in Spain

Sobrino

Monzón

2018

Reducing traffic emissions is key in transport planning and infrastructure management in order to achieve a sustainable transport system. This paper contributes to this topic in two ways. The first step describes a comprehensive methodology for identifying hot spots road segments and corridors with problems of GHG emissions to enable low-carbon actions. The Highway Energy Assessment (HERA) methodology is applied to the national road network of Spain in order to estimate interurban traffic emissions and calculate the emissions index to assess strategies. The results are shown graphically on a GIS, allowing to identify seven corridors with emissions problems comprising 25% of the network and being responsible for 51% of the total GHG emissions in 2012. Inefficient corridors were those with high rates of heavy vehicles, high speeds and steep gradients. The second step consists of the application of a set of strategies to reduce their emissions and their comparison to the reference scenario. The Mediterranean corridor—the most inefficient corridor—was selected to apply a set of abatement strategies. The most effective strategy was speed enforcement for light vehicles. A speed reduction of 10 km/h could produce a 3.5% savings in emissions compared to the reference scenarios, and decrease emissions intensity from 254 gCO2eq/veh-km to 246 gCO2eq/veh-km.

“…On the other hand, Van Mierlo et al [73] have shown that it is possible to achieve consumption reductions of between 5 and 25% with appropriate fuel-saving driving courses. Coloma et al [74] examined the potential of driver behavior for reducing emissions in a small non-congested city; their results showed that the average CO 2 savings were 17% (gasoline engines) and 21% (diesel engines), while the travel times has been increased of about 7.5%.…”

Section: Ecodrivingmentioning

confidence: 99%

Sustainable Mobility: A Review of Possible Actions and Policies

Gallo

Marinelli

2020

In this paper, a review of the main actions and policies that can be implemented to promote sustainable mobility is proposed. The work aims to provide a broad, albeit necessarily not exhaustive, analysis of the main studies and research that from different points of view have focused on sustainable mobility. The structure of the paper enables the reader to easily identify the topics covered and the studies related to them, so as to guide him/her to the related in-depth studies. In the first part of the paper, there is a preliminary analysis of the concept of sustainable mobility, the main transport policies implemented by the European Union and the USA, and the main statistical data useful to analyze the problem. Next, the main policies that can promote sustainable mobility are examined, classifying them into three topics: Environmental, socio-economic, and technological. Many of the policies and actions examined could be classified into more than one of the three categories used; for each of them, there is a description and the main literature work on which the topic can be analyzed in more detail. The paper concludes with a discussion on the results obtained and the prospects for research.