WorldCat Identities

Ciuffo, Biagio

Works: 19 works in 29 publications in 1 language and 30 library holdings
Roles: Author, Other
Classifications: TA1001.5, 380
Publication Timeline
Most widely held works by Biagio Ciuffo
A meta-framework for sustainability assessment by Serenella Sala( Book )

2 editions published in 2013 in English and held by 3 WorldCat member libraries worldwide

Comparison of simulation-based and model-based calibrations of traffic-flow microsimulation models by Biagio Ciuffo( )

1 edition published in 2008 in English and held by 3 WorldCat member libraries worldwide

Characterisation of real-world CO2 variability and implications for future policy instruments( )

2 editions published in 2017 in English and held by 2 WorldCat member libraries worldwide

There is increasing evidence suggesting that real-world fuel consumption and CO2 emissions improvements in the last decade have been much lower than the officially reported ones. Scientific studies show that the offset between officially reported values and real-world vehicle CO2 emissions in Europe has constantly increased over the last years. The difference between officially reported and actual CO2 emissions of vehicles has three main implications: a) it undermines the collective effort to reduce greenhouse gas emissions in Europe, b) it creates an unfair playing field for different competitors, and c) it affects the credibility of vehicle manufacturers. As a fundamental step to deal with this issue the European Commission has replaced the old and outdated NEDC test procedure used so far in the emission type-approval of vehicles by the Worldwide harmonized Light vehicles Test Procedure (WLTP). Being a lab-based test-procedure, the WLTP, by its nature, can only cover part of the CO2 gap. Some stakeholders have suggested that the remaining gap could be tackled by additional measures based on real-world measurements. The objective of the present report is to analyse possible ways to deal with the remaining CO2/fuel consumption gap. In particular, fleet-wide monitoring of real-world fuel consumption and model-based tools able to provide customized information to road users are the measures suggested. In addition, the paper presents experimental evidence on the variability of the CO2/fuel consumption of vehicles, putting into question the idea that a single central estimate of these quantities may be sufficient
From NEDC to WLTP : effect on the type-approval CO2 emissions of light-duty vehicles( )

2 editions published in 2017 in English and held by 2 WorldCat member libraries worldwide

The present report summarises the work carried out by the European Commission's Joint Research Centre to estimate the impact of the introduction of the new type approval procedure, the Worldwide Light duty vehicle Test Procedure (WLTP), on the European car fleet CO2 emissions. To this aim, a new method for the calculation of the European light duty vehicle fleet CO2 emissions, combining simulation at individual vehicle level with fleet composition data is adopted. The method builds on the work carried out in the development of CO2MPAS, the tool developed by the Joint Research Centre to allow the implementation of European Regulations 1152 and 1153/2017 (which set the conditions to amend the European CO2 targets for passenger cars and light commercial vehicles due to the introduction of the WLTP in the European vehicle type-approval process). Results show an average WLTP to NEDC CO2 emissions ratio in the range 1.1-1.4 depending on the powertrain and on the NEDC CO2 emissions. In particular the ratio tends to be higher for vehicles with lower NEDC CO2 emissions in all powertrains, the only exception being with the plug-in hybrid electric vehicles (PHEVs). In this case, indeed, the WLTP to NEDC CO2 emissions ratio quickly decreases to values that can be also lower than 1 as the electric range of the vehicle increases
Regulating air emmissions from ships : the state of the art on methodologies, technologies and policy options( Book )

3 editions published between 2010 and 2011 in English and held by 2 WorldCat member libraries worldwide

The best way of reducing air emissions from shipping is to adopt a mix of regulatory measures, such as sulphur emission control areas and fuel efficiency standards, combined with market-based instruments
Assessment of the monitoring methodology for CO₂ emissions from heavy duty vehicles : pilot phase test-campaign report and analysis of the ex-post verification options( )

2 editions published in 2017 in English and held by 2 WorldCat member libraries worldwide

Following a request from DG-Clima and DG-GROW, JRC launched a test-campaign in order to investigate the validity, accuracy and plausibility of the methodology proposed for the verification of the certified CO2 emissions from Heavy Duty Vehicles (aka ex-post verification methodology). In addition scope of the test campaign was to demonstrate the representativeness of the CO2 emissions calculations made by the official simulator (VECTO) by comparing against the actual performance of vehicles. Experiments were conducted on four Euro VI trucks, both on the chassis dyno and on the road with the aim of understanding the advantages and disadvantages of different approaches proposed. Two main verification approaches were investigated, steady state measurements in chassis-dyno / controlled conditions, and measurements under transient conditions on chassis-dyno and actual on-road operating conditions. The official simulation software (VECTO) was used for simulating the operation of vehicles under the different test conditions. The key conclusion of the test campaign is that an ex-post verification method which is based on transient, on-road tests is possible for trucks and comes with the advantage that it could potentially cover also other vehicle types which are difficult to be validated under steady state conditions in a laboratory or on a test track under controlled conditions. However, there is a clear need to work on the details of the test protocol to be finally implemented, define boundary conditions for transient tests on road, and establish the necessary acceptance and rejection margins for any such validation. Finally, additional testing is necessary in order to calculate accurately any systematic deviation between the officially reported, simulated, CO2 values and those actually occurring in reality. VECTO results should be periodically controlled and assessed in order to make sure that its CO2 estimates remain representative and minimize the possibility that discrepancies will occur in the future between the officially reported and actually experienced fuel consumption
Last mile delivery by drones: an estimation of viable market potential and access to citizens across European cities by Jean-Philippe Aurambout( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Development of sustainability scenarios : scope and methodologies( Book )

2 editions published in 2012 in English and held by 2 WorldCat member libraries worldwide

The purpose of the report is twofold. To begin with, it seeks to set out the objectives of, and methodologies for, the development of socio-economic and environmental scenarios for the European Union up until 2050f. In addition, the report undertakes to place scenario building in a wider political and socio-economic context. The report is structured as follows. In section II, the report compares forecasts and scenarios with a view to highlight common aspects and differences. In section III, the report discusses in more detail the purpose of scenario building against the background of the policy objective to reach sustainability. Section IV, finally, examines some of the methodological issues involved in scenario building and sketches out how scenarios can be built in a meaningful and feasible manner. The report is largely exploratory in nature as it seeks to identify critical issues and questions. The report is, in this respect, akin to one of the key purposes of scenario building itself. Accordingly, scenarios are not only developed as long range planning tool, but also with a view to foster and facilitate communication and reflection
Mobility and economic impact of COVID-19 restrictions in Italy using mobile network operator data a focus on the period November 2020 - February 2021 by Michele Vespe( )

2 editions published in 2021 in English and held by 2 WorldCat member libraries worldwide

This work presents the analysis of the impact of restrictions on mobility in Italy, with a focus on the period from 6 November 2020 to 31 January 2021, when a three-tier system based on different levels of risk was adopted and applied at regional level to contrast the second wave of COVID-19. The impact is first evaluated on mobility using Mobile Network Operator anonymised and aggregate data shared in the framework of a Business-to-Government initiative with the European Commission. Mobility data, alongside additional information about electricity consuption, are then used to assess the impacts on an economic level of the three-tier system in different areas of the country
ERA - JRC Workshop on Safety certification and approval of automated driving functions : analogies and exchange of best practices between railway and automotive transport sectors( )

1 edition published in 2021 in English and held by 1 WorldCat member library worldwide

Safety is an integral part of the design process in many industrial applications, ranging from chemical to nuclear plant, from transport to pharmaceutical sector. The introduction of driving automation in the automotive sector brought new challenges for both industry and government in order to ensure automated vehicles are safe. The European Commission (EC) Joint Research Centre (JRC) is supporting the Directorate General for Internal Market, Industry, Entrepreneurship and SMEs (DG GROW) with pre-normative research on new assessment and tests methods for automated vehicles (AVs) safety certification that take into account auditing approaches as well as different levels of testing (simulation, track- and on-road tests) and feedback from the operational experience. Other industrial domains, like the railway sector, already faced the introduction of automation of cyber-physical systems and developed robust and sound methodologies for the certification of safety management systems and for product approval. In this context, a joint online-workshop was organized between JRC and the European Union Agency for Railways (ERA) in order to investigate possible application of approaches and best practices developed for the certification of railway systems to the approval of automated vehicles, and to identify areas of common interest for future collaboration. Many analogies were found between challenges already addressed for certification of railway systems and those still pending for AVs approval. Namely, the Safety Management System certification and monitoring, maintenance requirements, infrastructure-vehicle system certification, are the areas where lessons learned from railway transport could represent a useful inspiration for the automotive sector. Further to that, in-service safety through the operational feedback was identified as are of common interest for mutually beneficial future collaboration
Model-based development of scenarios for a sustainable Europe : methodologies, assumptions and first results( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

This report seeks to support the formulation and implementation of policies which help to steer the European Union towards a sustainable future. It charts out plausible development paths, assuming that such paths will have implications for the conceptualisation, adoption and implementation of environmental policies. In fact, depending on developments in areas ranging from demographics to foreign policy, contexts can arguably be found which make it more difficult to adopt and implement sustainability-oriented policies and measure and contexts which are actually supportive. In addition to the qualitative analysis, the report then presents simulations based on a macro-economic-environment model which indicate how the interaction of key assumptions and policies may play out in the future and how key environmental and socio-economic variables respond to different assumptions and policy settings. The simulations show that the quantitative dimensions of the above contexts exert far from negligible impacts on these variables compared to both the baseline and plausible scenarios, thereby underpinning the view that policy makers should be sensitive to the environments in which their policies are being implemented
Does traffic-related calibration of car-following models provide accurate estimations of vehicle emissions?( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Highlights: The Gipps model provides more accurate simulated trajectories than the Newell model. The Newell model provides more accurate emission calculations. Emission calculations of a single vehicle are very sensitive to the calibration. The mean error for emission is significantly reduced when considering platoons. At a platoon scale, mean parameters are sufficient for accurate emission calculations. Abstract: Fuel consumption or pollutant emissions can be assessed by coupling a microscopic traffic flow model with an instantaneous emission model. Traffic models are usually calibrated using goodness of fit indicators related to the traffic behavior. Thus, this paper investigates how such a calibration influences the accuracy of fuel consumption and NOx and PM estimations. Two traffic models are investigated: Newell and Gipps. It appears that the Gipps model provides the closest simulated trajectories when compared to real ones. Interestingly, a reverse ranking is observed for fuel consumption, NOx and PM emissions. For both models, the emissions of single vehicles are very sensitive to the calibration. This is confirmed by a global sensitivity analysis of the Gipps model that shows that non-optimal parameters significantly increase the variance of the outputs. Fortunately, this is no longer the case when emissions are calculated for a group of many vehicles. Indeed, the mean errors for platoons are close to 10% for the Gipps model and always lower than 4% for the Newell model. Another interesting property is that optimal parameters for each vehicle can be replaced by the mean values with no discrepancy for the Newell model and low discrepancies for the Gipps model when calculating the different emission outputs. Finally, this study presents preliminary results that show that multi-objective calibration methods are certainly the best direction for future works on the Gipps model. Indeed, the accuracy of vehicle emissions can be highly improved with negligible counterparts on the traffic model accuracy
1st TRIMIS horizon scanning session : Joint Research Centre, Ispra, Italy, 26 September 2019( )

2 editions published in 2020 in English and held by 1 WorldCat member library worldwide

The Transport Research and Innovation Monitoring and Information System (TRIMIS) is an open-access transport policy-support tool developed and managed by the Joint Research Centre (JRC) to support the implementation of the Strategic Transport Research and Innovation Agenda (STRIA). One of the main objectives of TRIMIS is to provide a forward-oriented support to transport research and innovation (R&I) governance by using foresight in its technological and socioeconomic assessment process related to transport R&I. Within the TRIMIS framework, horizon scanning is applied through a structured and systematic collaborative exercise that contributes to the identification of new and emerging transport-related technologies and trends, with a potential future impact on the transport sector. Furthermore, it supports the assessment of current and future research needs and provides transport related insights to the broader European Commission foresight system contributing to a higher-level strategic framework also covering the transport domain. As part of this process, on 26 September 2019 the TRIMIS team, with support from the Unit for Knowledge Management and the EU Policy Lab of the JRC organised a sense making session entitled the 1st TRIMIS Horizon Scanning Session. It aimed at gathering insights from various transport experts with different backgrounds and make sense of previously collected, transport-related horizon scanning items through a process that could provide indications on relevant trends, new drivers of change, weak signals, discontinuities or shocks/'wild cards'/sudden unexpected events/'black swans'. This report collects and analyses the experiences that were shared and discussed during the session along with the supplementary material and initial results. Furthermore, it acts as a first input to the next step of the TRIMIS Horizon Scanning process that will involve policymakers with a focus on transport R&I
Environmental impacts of global supply chain : a review of scientific, policy and legal components for including environmental and climate challenges within the international trade patterns( Book )

2 editions published in 2013 in English and held by 1 WorldCat member library worldwide

During the last two decades globalisation has been a key variable driving economic growth and raising the living standards of nearly everyone on the planet, although not without cost. Indeed, the growth in world trade resulting from globalisation is now increasingly seen as an issue in the scientific and political debate on the environmental impacts of global supply chain and consumption. Most cost efficient locations around the world accelerate the trends towards international specialization causing some distortions of the markets in terms of the use of natural resources. The relative international competitiveness of companies in nations with stronger environmental protection regulations (haven hypothesis) is one argument for looking at alternative global environmental regulatory tools that are compatible with international trade agreements and development policies. Literature recognises that stringent environmental policies can force pollution intensive sectors to move to regions more favourable if the abatement costs are too high. However, trade is not a driver of environmental degradation, but the structure of the markets and the presence of market failures (externalities, no definitions of property rights) are the causes of environmental impacts. This report analyses the key features of global supply chain and its environmental impacts related to biodiversity loss, water conservation, raw material. The report provides a deep analysis on Climate change and global supply chain. It analyses the scientific, legal and policy components of the international debate over carbon and trade. It introduces and analyses the concept of the consumption-based approach and compares it with the production-based one. The reports highlights that policy makers should look beyond the traditional geo-political regions and a consumption-based perspective would represent a significant step in this direction in order to manage a sustainable global supply chain
Combining screening and metamodel-based methods: An efficient sequential approach for the sensitivity analysis of model outputs( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract: Sensitivity analysis (SA) is able to identify the most influential parameters of a given model. Application of SA is usually critical for reducing the complexity in the subsequent model calibration and use. Unfortunately it is hardly applied, especially when the model is in the form of a computationally expensive black-box computer program. A possible solution concerns applying SA to the metamodel (i.e., an approximation of the computationally expensive model) instead. Among the other options, the use of Gaussian process metamodels (also known as Kriging metamodels) has been recently proposed for the SA of computationally expensive traffic simulation models. However, the main limitation of this approach is its dependence on the model dimensionality. When the model is high-dimensional, the estimation of the Kriging metamodel may still be problematic due to its high computational cost. In order to overcome this problem, in the present paper, the Kriging-based approach has been combined with the quasi-optimized trajectory based elementary effects (quasi-OTEE) approach for the SA of high-dimensional models. The quasi-OTEE SA is used first to screen the influential and non-influential parameters of a high-dimensional model; then the Kriging-based SA is used to calculate the variance-based sensitivity indices, and to rank the most influential parameters in a more accurate way. The application of the proposed sequential SA is illustrated with several numerical experiments. Results show that the method can properly identify the most influential parameters and their ranks, while the number of model evaluations is considerably less than the variance-based SA (e.g., in one of the tests the sequential SA requires over 50 times less model evaluations than the variance-based SA). Highlights: Quasi-OTEE and Kriging-based SA are reviewed and combined as the sequential SA. The sequential SA produces similar results as the analytical calculations and variance-based SA. The sequential SA takes over 50 times less computational cost than the variance-based SA. An efficient SA for high-dimensional and computationally expensive models
Sensitivity analysis by Vincenzo Punzo( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Geo-ICT in transportation science( Book )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

Integrating road transport and emissions modelling : REM workshop outcomes and follow-up investigation( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

The European Commission's Joint Research Centre (JRC) organised a two day 'Road-transport and Emissions Modelling' (REM) Workshop, under the umbrella of the Enlargement and Integration Action 2015. The workshop was hosted by the Faculty of Mechanical Engineering of the University "Ss. Cyril and Methodius" in Skopje, on 10th and 11th of September 2015. Traffic models and emission models are strongly interrelated. There cannot be emissions if there is no traffic, movement of people and goods - and transport mobility increases every year. But increased transport means increased emissions, and consequently increased pollution which is the main reason for climate change worldwide. It has been one of the main objectives of the REM 2015 Workshop, to provide the basics of transport and emission modelling and to promote their proper integration because scientists in the two disciplines hardly communicate in an effective way
Short and long term effects of sustainable mobility policy: an exploratory case study( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

The aim of the present paper is to offer an exploratory contribution to the general debate on sustainable transport, in particular from the perspective of impact assessment of sustainable transport policy. Specifically, starting from data available from different public sources in the United States, two different types of analyses are conducted: (1) comparison of the declared short term results of the most practical policies applied (e.g. ramp metering, HOV lanes, etc.); and (2) an analysis of mobility data to interpret long term effects of policy previously and semi-unconsciously applied. In particular, the latter point has a more innovative character with respect to the former. It is based on the assumption that, specifically in the West Coast of the United States, at a local scale (e.g. states), policies that would be defined as sustainable today, have already been applied in the past. sustainable mobility ; Clean Air Act ; transport policies ; California
moreShow More Titles
fewerShow Fewer Titles
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.92 (from 0.75 for Sensitivit ... to 0.99 for Comparison ...)

English (29)