Francesco Ciari

Francesco Ciari
Joanneum Research Forschungsgesellschaft mbH · LIFE – Institute for Climate, Energy and Society

PhD

About

62
Publications
26,623
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Introduction
Francesco Ciari currently works at the LIFE - Zentrum für Klima, Energie und Gesellschaft, Joanneum Research Forschungsgesellschaft mbH. Francesco does research Transportation Engineering, and in particular in the modeling of innovative transportation systems and shared mobility.

Publications

Publications (62)
Article
Full-text available
The success of carsharing as a relatively new and more sustainable way of traveling is moving private car ownership towards a service use model. Competitivity is an essential aspect of this service and ways to increase profit while offering the most appealing service are still getting explored. Among others, dynamic pricing strategies can be design...
Article
Daily activities and mobility dynamics play a central role in the spread of COVID-19. Close physical interactions involved by certain daily activities help transmit the virus. Travel required by the spatial distribution of activities contributes to the propagation of the virus. In order to control and limit this propagation, it is critical to under...
Preprint
Full-text available
Everyday activities and mobility dynamics play a central role in the spread of COVID-19. Close physical interactions involved by certain daily activities help transmit the SARS-COV-2. Travel required by the spatial distribution of activities contribute to the propagation of the virus. In order to control and limit this propagation, it is critical t...
Preprint
Full-text available
The COVID-19 pandemic has rampaged through the world causing hundreds of thousands of fatalities, millions of infections, and acute economic and social consequences. In this context, epidemiological models have been put forward as key tools to help public health authorities and policy makers cope with the pandemic. In some cases, these models have...
Article
Full-text available
Carsharing companies can customize their service by adopting different pricing schemes and offers with the goal of increasing service attractivity, fleet usage and profits. Dynamic pricing strategies can be designed to adjust and balance cars’ availability temporally and spatially; they may pose some questions regarding customer equity, since such...
Article
Mobility as a Service (MaaS) is an attempt to overcome market segmentation by offering transport services tailored to the individual traveler's needs. An alternative to prior investment into single mobility tools, it may allow less biased mode choice decisions. Such a setting favors shared modes, where fixed costs can be apportioned among a large n...
Article
A considerable amount of research has been devoted to understanding and modeling carsharing services in the past. However, a research question that has not been investigated yet is how carsharing companies affect each other in a competitive market. This paper presents a methodology, based on the MATSim framework, for investigating the interaction o...
Article
Full-text available
Automated vehicles (AVs) could completely change mobility in the coming years and decades. As AVs are still under development and gathering empirical data for further analysis is not yet possible, existing studies mainly applied models and simulations to assess their impact. This paper provides a comprehensive review of modelling studies investigat...
Article
Autonomous vehicles (AVs), here self-driving and driverless vehicles, SAE levels 4 and 5 are becoming more clearly a reality. Potential services based on AVs and their consequences for the transport system are of increasing importance. This paper investigates policy combinations for a world with such services. The policy measures investigated are p...
Article
Free-floating car-sharing schemes operate without fixed car-sharing stations, ahead reservations or return-trip requirements. Providing fast and convenient motorization, they attract both public transport users and (former) car-owners. Thus, their impact on individual travel behavior depends on the user type. Estimating the travel behavior impact o...
Article
Full-text available
The simulation of large-scale scenarios requires high-performance simulations. MATSim, an agent-based transport simulation, is increasingly reaching limits. The traditional approach is to scale the scenarios, i.e. simulating only 10% of a population instead of 100%. This paper suggests MacroSim, a macroscopic mobility simulation module for MATSim,...
Article
Full-text available
For the simulation of public transport, next to a schedule, knowledge of the public transport routes is required. While the schedules are becoming available, the precise network routes often remain unknown and must be reconstructed. For large-scale networks, however, a manual reconstruction becomes unfeasible. This paper presents a route reconstruc...
Article
Full-text available
This study provides a large-scale micro-simulation of transportation patterns in a metropolitan area when relying on a system of shared autonomous vehicles (SAVs). The six-county region of Austin, Texas is used for its land development patterns, demographics, networks, and trip tables. The agent-based MATSim toolkit allows modelers to track individ...
Article
Free-floating car-sharing has been one of the latest innovations in the car-sharing market. It allows its customers to locate available vehicles via a smartphone app and reserve them for a short time prior to their rental. Because it is available for point-to-point trips, free-floating car-sharing is not only an alternative to private cars, but als...
Article
Full-text available
Free-floating car-sharing schemes operate without fixed car-sharing stations, ahead reservations or return-trip requirements. Providing fast and convenient motorization, they attract both public transportation users and (former) car-owners. However, given their highly flexible nature and different pricing structures, previous findings on user group...
Article
Full-text available
The research on carsharing has already shown that a non-negligible part of carsharing members give up a vehicle after joining a carsharing program, or avoid a vehicle purchase. This arguably reduces overall parking space needed. This might well be one of the most important impacts of a carsharing program on the transportation system, but also one o...
Chapter
This paper reports on ongoing work on getting a deeper insight into possible integrations of different shared vehicle systems. It introduces an original methodology in three stages, which helps dealing with the complexity of the problem. Using a simulation tool, different scenarios are assessed. The paper presents preliminary results obtained by si...
Article
This paper shows an application of the multiagent, activity-based transport simulation MATSim to evaluate equity effects of a congestion charging scheme. A cordon pricing scheme was set up for a scenario of the city of Zurich, Switzerland, to conduct such an analysis. Equity is one of the most important barriers toward the implementation of a conge...
Article
This study investigates the effects of climate change on tourist mobility in mountain areas, distinguishing between infrastructure, transport operation and travel demand. We examine change in tourist travel demand by proposing a two-step approach to forecast its future development. A multi-origin, multi-destination model for tourism demand quantifi...
Conference Paper
The research on carsharing has already shown that a substantial part of carsharing members give up a vehicle after joining a carsharing program, or avoid a vehicle purchase. This arguably reduces overall parking space needed. This might well be one of the most important impacts of a carsharing program on the transportation system but also one of th...
Conference Paper
It is widely acknowledged that fully autonomous vehicles (AVs) will have a significant impact on mobility. However, we lack a detailed understanding of their effects on traffic operations and space allocation. This study analyses the impact of AVs on road space. Simulation experiments are run in order to find how much of the road space could be rec...
Conference Paper
This paper presents the new IVT 2015 baseline scenario for MATSim. It represents a typical workday in Switzerland in the year 2015. The main population is available as a 1% and 10% sample, as well as undiluted. It features attributes, preferences, facilities and households. A cross- border population and a freight population complement the main pop...
Article
Full-text available
The road transport sector is facing rising uncertainties in planning and operations due to climate change induced changes in weather variability and extreme events. However, because of the high level of uncertainty related to the future climate, adaptation measures should be robust so as to retain the option value of the portfolio of measures. As a...
Article
Automated vehicles (AVs) promise many benefits for future mobility. One of them is a reduction of the required total vehicle fleet size, especially if AVs are used predominantly as shared vehicles. This paper presents research on this potential reduction for the greater Zurich, Switzerland, region. Fleets of shared AVs serving a predefined demand w...
Article
Full-text available
Extensive literature already exists on carsharing and other shared modes, but understanding their effect on the transportation system requires additional work. One main limit of the existing research is that such modes have been analyzed mostly as isolated systems. As these modes were niche products, it was not easy to include them in comprehensive...
Article
Full-text available
Worldwide carsharing has grown significantly in recent years. The traditional round-trip model is no longer the only carsharing model offered. It is now being accompanied by more flexible options such as one-way station-based, free-floating and peer-to-peer carsharing. Moreover, it has become important to have tools that can estimate both the spati...
Article
More and more highly automated vehicles arrive in the consumer market and fully autonomous vehicles are predicted to become available in the next few years. Autonomous vehicles promise to fundamentally change mobility - for users as for planners. Transport models and simulations are required to prepare for these changes. This paper suggests agent-b...
Article
Fundamental changes are continuing in the carsharing industry and the rapid diffusion of free-floating carsharing is one of them. The increased size of the operators and the more frequent occurrence of direct competition among them will likely make carsharing pricing a more important issue. The problem of how carsharing demand varies with different...
Technical Report
Full-text available
Project report presenting the assessment approach and results of 7 case studies regarding impacts of and adaptation to climate change for the sectors energy, transport and tourism in Europe. Climate change impacts and benefits of adaptation are presented according to stepwise approach going from no adaptation via automatic adaptation to planned ada...
Article
Full-text available
Carsharing as a mode, in any of its different forms, has the peculiarity of being accessible only to members. The research presented in this paper focuses on round-trip-based carsharing, where vehicles are parked at fixed locations, called in this paper stations. Round-trip-based carsharing has been the first successful form of carsharing, and is s...
Article
Full-text available
Carsharing, in any form, is still growing around the world. One of the effects is the increasing number of cities in which multiple carsharing operators are competing. The carsharing industry has never been as competitive as it is now: the present is a good time for researchers to invest efforts in providing tools for the assessment and planning of...
Technical Report
Full-text available
Document Title Overview of system responsiveness to climate change impacts in energy, transport and tourist sectors Version 2.1 Status Final Deliverable Type Deliverable Contractual Date of Delivery 31.03.2014 Actual Date of Delivery 30.10.2014 Contributors All Partners Editors Patrick M. Boesch (ETH), Francesco Ciari (ETH), Adriaan Perrels (FMI) D...
Conference Paper
http://nordicadaption2014.net/fileadmin/user_upload/NordicAdaption2014/Theme1/Ciari_F.pdf
Conference Paper
Full-text available
The aim of this article is to see to what extent it is possible to tend to cities where accessibility will be decoupled from the speed of car travel. In this context, as a first step, we simulate different policies of speed regulation and investigate their effects on modal split, distances travelled, and people satisfaction using a multi-agent simu...
Data
Despite all mitigation efforts, climate change will impact transport systems. As the exact effects are still uncertain, a range of possible climate change outcomes has to be considered. For that purpose, it is important to have an instrument modeling a transport system and its behavior in different weather conditions. This paper shows that agent-ba...
Conference Paper
Full-text available
A recent study estimated the potential of carpooling in Switzerland. Part of this study was a survey in which the attitudes of the public towards this mode were investigated using both multi-response questions and a stated preference (SP) experiment. This paper reports on the results of the questionnaire. The first contribution of this paper is to...
Conference Paper
Full-text available
This paper reports on an ongoing project which main goal is the setup of a scenario for the microsimulation model MATSim for the year 2030. Running the model on such scenario is expected to deliver a plausible prediction of transportation demand in Switzerland in that year. The work involves various challenges and can be broadly divided in two task...
Article
Carsharing is a system that allows individuals to use a car from a fleet on an hourly basis. The growing popularity of carsharing is reflected by a continuous increase in the number of users worldwide. However, the estimation of travel demand for this mode has only sporadically been addressed by researchers and not in a completely satisfactory way....
Article
Full-text available
ABSTRACT This paper is aimed ,to renew ,the debate on car-sharing and its future development. The
Article
Full-text available
This paper reports the development of a new mode choice model system, embedded in a multi- agent transport simulation, aiming to obtain both a spatially and behaviourally fine representation of modal choice of the simulated individuals. The new model addresses the subtour level, substantially improving on previous work, which either addresses the t...
Article
This paper report on ongoing work aimed to explore new solutions to urban traffic problems. The use of collective taxi services at a large scale is proposed. It is seen, if used and properly integrated together with other flexible systems, as a mean to reduce private car travel. The paper discusses motivations and possible factors of success of the...

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Projects

Projects (3)
Project
Explore the connection between daily activities of the population and the spread of the virus using the agent-based approach.
Project
ToPDad is an EU FP7 project that ran from 2012 to 2015. Our mission was to develop tools which will help businesses and regional governments find the best strategies to adapt to climate change. ToPDAd focused on the energy, transport and tourism sectors in particular.