Paper in Proceedings by Agostino Nuzzolo
It is widely accepted that a connection exists between the shape, size and density of an urban ar... more It is widely accepted that a connection exists between the shape, size and density of an urban area and its sustainability. However, consensus is lacking about the extent and characteristics of this relationship. Certain urban forms appear to be more sustainable in some respects, for example in reducing travel, but unfavourable in other aspects, as the environmental quality or social inequalities; furthermore, some forms may be sustainable locally, but not at the city wide scale (Burton et al. 2013). A number of empirical studies dealing with the influence of urban form on sustainability has not been conclusive and comes out with mixed outcomes. In order to provide empirical insights to this debate, this study investigates the relation between urban form and sustainability in terms of economic, social and environmental characteristics of the transport-land use integrated system, by comparing three different urban forms: compact, TOD and sprawl. The main research question is: does urban form, in terms of density and distribution of activities, impact the sustainability levels of urban areas? To give an answer to this question, the paper proposes a methodology for assessing urban forms, based on a system of Land-Use and Transport Interactions (LUTI) models. This has been designed and applied able to simulate the behaviour of both dwellers and transport users and how they react to changing conditions. A system of indicators has been then set up to systematically test and compare three urban scenarios, which differ in terms of density and distribution of activities and to assess to what extent different urban structures achieve or not sustainability in terms of economic, environmental and social impacts. More details are provided in the methodological section.
This study presents some innovations points with regard to the existing literature. First, while already existing studies mainly focus of the assessment on a single urban form (with the exception of some more recent studies, (Echenique et al., 2012), in this study we compare three urban structures.
An additional difference with present literature is that most studies focus on small scale and local factors influencing travel behaviour and its consequence on sustainability level, while in this research we analyse the interaction between urban form and sustainable travel behaviour at the city wide scale.
Finally, another novelty regards a specific application of utility based models, which are usually used for simulate the LUT system performance in terms of transport network speed or congestion. In this study we instead integrate them in a scenario analysis and in particular addressing sustainability and equity issues as managing the side effects of growth such as sprawl, congestion, housing affordability, pollution, energy consumption and loss of open spaces.
In this way, we do not examine the effect of urban form only by parameter of travel (distance, time, frequency), but we propose a more complete sustainability assessments. Nevertheless, it is important to stress that in this study we do not take into account health and well-being aspects of sustainability, putting this focus off at future steps of the research.
The paper is organized as follows. In Section 2 we refer to the existing literature and to the debate on the relations between urban form and sustainability. Section 3 describes the research design and in particular the system of models and the assessment indicators system. In Section 4 we discuss the results of the application to the empirical case study of Rome. Conclusions are drawn in Section 5.
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Journal articles by Agostino Nuzzolo
Studies of urban freight mobility traditionally focused only on restocking flows and usually negl... more Studies of urban freight mobility traditionally focused only on restocking flows and usually neglected the linkage with shopping activities even if end consumer's choices in relation to the type of retail undoubtedly impact on freight distribution flows. The paper focuses on the distribution of urban freight facilities, the choices of type of retail and the travel mode used and some models for simulating the choice of retail outlet and the transport mode are presented. The models, jointly with urban freight demand models were used to assess the effects of some land-use scenarios and to define optimal spatial distribution of urban freight facilities able to improve city sustainability and to meet the interests of end consumers, freight operators and society. The results of an application of this method to a test site are also reported and discussed.
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Papers by Agostino Nuzzolo
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Operations Research/Computer Science Interfaces Series, 2004
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Most of the proposed modeling systems for the simulation of the urban freight transport focus on ... more Most of the proposed modeling systems for the simulation of the urban freight transport focus on the estimation of the level and spatial distribution of commodity exchanges both in terms of quantity and delivery Origin-Destination (O-D) flows. In particular, the quantity O-D flows are required because they allow us to capture the mechanisms underlying the
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The subject of this book is the new scientific research in the field of modelling the interaction... more The subject of this book is the new scientific research in the field of modelling the interaction between land use and transport (LUTI modelling). Transport and the location of activities in space have been important themes of study in engineering, social sciences and urban and regional planning
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Information, 2021
Data on the daily activity of private cars form the basis of many studies in the field of transpo... more Data on the daily activity of private cars form the basis of many studies in the field of transportation engineering. In the past, in order to obtain such data, a large number of collection techniques based on travel diaries and driver interviews were used. Telematics applied to vehicles and to a broad range of economic activities has opened up new opportunities for transportation engineers, allowing a significant increase in the volume and detail level of data collected. One of the options for obtaining information on the daily activity of private cars now consists of processing data from automated vehicle monitoring (AVM). Therefore, in this context, and in order to explore the opportunity offered by telematics, this paper presents a methodology for obtaining origin–destination flows through basic info extracted from AVM/floating car data (FCD). Then, the benefits of such a procedure are evaluated through its implementation in a real test case, i.e., the Veneto region in northern ...
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Tema. Journal of Land Use, Mobility and Environment, 2010
In order to reduce the impacts of freight transport, Public Administration usually implements cit... more In order to reduce the impacts of freight transport, Public Administration usually implements city logistics scenarios, whose effects have to be evaluated by using ex-ante assessment procedures. This paper proposes the state-of-the-art of models for the prediction of urban goods movements, which have been developed to support the above ex-ante assessment. Aiming at preserving the economic sustainability of the businesses located in the city and, at the same time, the environmental quality, the new challenge of urban traffic management is the optimization of the access of a large number of trucks and vans delivering goods in the urban area. Thus, the availability of a reliable tool for ex-ante assessment plays a key role in the decision making processes. Starting from the structure of urban goods distribution and its critical states, this paper identifies the decision-makers, whose choices could be influenced by city logistics measures. Furthermore, considering the outcomes and goals...
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Information, 2021
This paper addresses the search for a run-based dynamic optimal travel strategy, to be supplied t... more This paper addresses the search for a run-based dynamic optimal travel strategy, to be supplied through mobile devices (apps) to travelers on a stochastic multiservice transit network, which includes a system forecasting of bus travel times and bus arrival times at stops. The run-based optimal strategy is obtained as a heuristic solution to a Markovian decision problem. The hallmarks of this paper are the proposals to use only traveler state spaces and estimates of dispersion of forecast bus arrival times at stops in order to determine transition probabilities. The first part of the paper analyses some existing line-based and run-based optimal strategy search methods. In the second part, some aspects of dynamic transition probability computation in intelligent transit systems are presented, and a new method for dynamic run-based optimal strategy search is proposed and applied.
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Archives of Transport, 2019
Traditional and innovative on-demand transport services, such as taxi, car sharing or dial-a-ride... more Traditional and innovative on-demand transport services, such as taxi, car sharing or dial-a-ride respectively, can provide a level of flexibility to the public transport with the aim to guarantee a better service and to reduce the exploitation costs. In this context, in order to point out the key-factors of on-demand services, this study focuses on traditional on-demand service (such as taxi one), and presents the results of a demand analysis and modelling, obtained processing taxi floating car data (FCD) available for the city of Rome. The GPS position of each taxi is logged every few seconds and it was possible to build a monthly database of historical GPS traces through around 27 thousands of GPS positions recorded per day (more than 750 thousands for the entire month). Further, the patterns of within-day and day-to-day service demand are investigated, considering the origin, the destination and other characteristics of the trips (e.g. travel time). The time-based requests for t...
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Data Analytics: Paving the Way to Sustainable Urban Mobility, 2018
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Journal of Civil Engineering and Architecture, 2012
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Procedia - Social and Behavioral Sciences, 2014
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Procedia - Social and Behavioral Sciences, 2012
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Procedia - Social and Behavioral Sciences, 2014
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Procedia - Social and Behavioral Sciences, 2014
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TRANSPORT, 2013
This paper presents a system of models for the estimation of international (import/export) freigh... more This paper presents a system of models for the estimation of international (import/export) freight flows through a partial share approach. It allows us to simulate attraction, production, distribution and modal split for the estimation of modal Origin-Destination matrices in quantities. Aiming at predicting long term effects for strategic planning, the modelling system has been specified through easy-to-capture variables represented by level-of-service attributes and aggregate socio-economic variables. The calibration was carried out by using a set of available data in Italy that allowed us to consider import/export flows for different freight types given by the aggregation of classes provided by European NST/R classifications.
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EcoProduction, 2013
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Paper in Proceedings by Agostino Nuzzolo
This study presents some innovations points with regard to the existing literature. First, while already existing studies mainly focus of the assessment on a single urban form (with the exception of some more recent studies, (Echenique et al., 2012), in this study we compare three urban structures.
An additional difference with present literature is that most studies focus on small scale and local factors influencing travel behaviour and its consequence on sustainability level, while in this research we analyse the interaction between urban form and sustainable travel behaviour at the city wide scale.
Finally, another novelty regards a specific application of utility based models, which are usually used for simulate the LUT system performance in terms of transport network speed or congestion. In this study we instead integrate them in a scenario analysis and in particular addressing sustainability and equity issues as managing the side effects of growth such as sprawl, congestion, housing affordability, pollution, energy consumption and loss of open spaces.
In this way, we do not examine the effect of urban form only by parameter of travel (distance, time, frequency), but we propose a more complete sustainability assessments. Nevertheless, it is important to stress that in this study we do not take into account health and well-being aspects of sustainability, putting this focus off at future steps of the research.
The paper is organized as follows. In Section 2 we refer to the existing literature and to the debate on the relations between urban form and sustainability. Section 3 describes the research design and in particular the system of models and the assessment indicators system. In Section 4 we discuss the results of the application to the empirical case study of Rome. Conclusions are drawn in Section 5.
Journal articles by Agostino Nuzzolo
Papers by Agostino Nuzzolo
This study presents some innovations points with regard to the existing literature. First, while already existing studies mainly focus of the assessment on a single urban form (with the exception of some more recent studies, (Echenique et al., 2012), in this study we compare three urban structures.
An additional difference with present literature is that most studies focus on small scale and local factors influencing travel behaviour and its consequence on sustainability level, while in this research we analyse the interaction between urban form and sustainable travel behaviour at the city wide scale.
Finally, another novelty regards a specific application of utility based models, which are usually used for simulate the LUT system performance in terms of transport network speed or congestion. In this study we instead integrate them in a scenario analysis and in particular addressing sustainability and equity issues as managing the side effects of growth such as sprawl, congestion, housing affordability, pollution, energy consumption and loss of open spaces.
In this way, we do not examine the effect of urban form only by parameter of travel (distance, time, frequency), but we propose a more complete sustainability assessments. Nevertheless, it is important to stress that in this study we do not take into account health and well-being aspects of sustainability, putting this focus off at future steps of the research.
The paper is organized as follows. In Section 2 we refer to the existing literature and to the debate on the relations between urban form and sustainability. Section 3 describes the research design and in particular the system of models and the assessment indicators system. In Section 4 we discuss the results of the application to the empirical case study of Rome. Conclusions are drawn in Section 5.
Starting from these considerations, the paper presents a method to simulate and assess spatial scenarios able to optimize city sustainability and meet the interests of end-consumers and freight operators. In particular, the paper provides insights on the interrelations among the distribution of freight facilities, shopping mobility and location of freight facilities by presenting a system of simulation models. The results of an application of this method to a test site are also reported and discussed.