Papers by Luigi dell'Olio
Models for Simulating the Impact of Accessibility on Real Estate Prices
Definition of the Model’s Purpose, the Study Area and the Input Data
State of the Art in Land Use–Transport Interaction Modelling
Land Use–Transport Interaction Models Considering Spatial Dependence
The Theoretical Basis of Land Use–Transport Interaction Models
Journal of Advanced Transportation, Aug 24, 2021
Recent studies have highlighted the existence of a gap between actual and perceived safety and ha... more Recent studies have highlighted the existence of a gap between actual and perceived safety and have shown that feelings of insecurity can affect individuals' travel behavior before and during the journey. In this paper, a methodology is proposed for assessing determinants of travelers' perception of safety and security in railway stations. e methodological approach includes focus groups, stated preference (SP) surveys, and the estimation of behavioral models with fixed parameters (Binomial Logit) and random parameters (Mixed Logit). e estimation results for a medium-sized railway station (Frosinone, Italy) confirmed that safety and security measures are not equally perceived by individuals and the use of random-parameters models leads to more robust estimates. e proposed modeling approach allows the identification of the interventions that should be prioritized to increase travelers' perceived levels of safety, highlighting those factors, such as, for the considered case study, the presence of security personnel and the level of decorum and maintenance, which are perceived by users as more important than others (e.g., surveillance cameras).
The Problem of the Location of Bus-Stops in Urban Public Transport
10th World Conference on Transport ResearchWorld Conference on Transport Research SocietyIstanbul Technical University, 2004
Generally it would seem that enough scientific criteria have not been used to tackle the problem ... more Generally it would seem that enough scientific criteria have not been used to tackle the problem of bus stops. Their location is based on the criterion (generally a qualitative one) of the urban transport system techniques, aiming only at the demand’s satisfaction , not considering other fundamental aspects such as access time (home – bus-stop), waiting time, level of service cost, and other costs that affect the companies working in the transport service. These costs depend, among other factors, on the spatial and numerical situation of bus stops. According to this point of view, the bus stops of an urban transport system line acquire particular importance. The aims of this work are to proportionate scientific criteria concerning the situation of the bus stops and propose mathematical models that can help the organizer in his/her work. The goodness of these models is based on the following argument: the location of the bus stops is obtained with the optimization of all the costs relative to users and to transport companies (operating costs) and the level of service offered by the system. In order to give a good service to the public transport users, it is considered essential to realize an adequate transport plan; an appropriate planning, in fact, contributes in a relevant way, not only to the full satisfaction of the demand and to the optimization of the services costs, but also to decrease other social costs such as congestion and pollution.
Integrated transport and land-use modeling
Edward Elgar Publishing eBooks, Jun 6, 2023
Transport Policy, Apr 1, 2018
This article presents a research study on modelling taxi user perceived quality. Following a thor... more This article presents a research study on modelling taxi user perceived quality. Following a thorough review of the available international literature, relevant variables are individualised using focus groups of taxi users, and a satisfaction survey is designed. The resulting data are used to estimate two types of ordered probit models, which consider systematic and random variations in taste: on the one hand, a model that provides attributes and their influence on the perceived quality of taxi service when no previous information about the system is available and, on the other hand, a model that considers their changed perception after being informed about the attributes that could affect the system's perceived quality. The results mention the attributes that the users normally value and those that they would value after being asked to reflect on them. It is worth noting that waiting time is the most important factor for frequent users, and journey time is highly valued by almost all users, along with safety, accessibility and comfort. Surprisingly, the fare is not usually as important as at the first thought. The results of this type of study are valuable because they allow us to understand and improve the system depending on user preferences, thereby improving the quality of services and increasing the demand.
Aerospace, Aug 10, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Public Participation Techniques and Choice of Variables
Elsevier eBooks, 2018
This chapter will describe the introduction of public participation into qualitative research. Th... more This chapter will describe the introduction of public participation into qualitative research. The most recently used on-line techniques will be presented after introducing the more established methods of involving the public and explaining how important their opinion is in the planning and management of transport systems. Specialized participation methods such as the Delphi, Charette, Livingstone, and mixed methods will be analyzed, among others, while looking at the various techniques and tools being used, such as focus groups, mega focus groups and in-depth interviews.
Modelling user perception of bus transit quality considering user and service heterogeneity
Transportmetrica, Nov 15, 2013
ABSTRACT Transport operating companies and decision-makers not only have to satisfy the demand fo... more ABSTRACT Transport operating companies and decision-makers not only have to satisfy the demand for transport but they must also provide a quality service which is attractive to customers. This article presents a methodology to model bus transit quality in the city of Santander using user perception data. The perceived quality has been estimated with random-ordered probit models. First, general service user population models are presented which initially only consider the service attributes and later introduce systematic variations in taste which have economic and social implications. Second, the quality perceived in different bus lines is analysed. The results show that each line is perceived differently by its users who prioritise different aspects and that heterogeneity is clearly present in the perception of service quality. However, if the measures that need to be taken aim to improve the overall service, partial effects suggest that changes need to be made in the aspects where improvements have the greatest impact on quality: reliability, journey time, available information and driver kindness, meaning that service improvement strategies need to be designed around these aspects.
Models for Simulating the Location of Population and Activities
Steps for Building an Operational Land Use–Transport Interaction Model
CRC Press eBooks, Nov 15, 2017
Structural Equation Models
Elsevier eBooks, 2018
Exploring the acceptance of connected and automated vehicles: Focus group discussions with experts and non-experts in transport
Transportation Research Part F-traffic Psychology and Behaviour, Aug 1, 2022
A Bilevel Optimisation Model to Plan the Provision of Transport to Big Infrastructural Works Located In Congested Urban Areas
11th World Conference on Transport ResearchWorld Conference on Transport Research Society, 2007
This paper proposes a bi-level optimization model for planning supply transport to large infrastr... more This paper proposes a bi-level optimization model for planning supply transport to large infrastructure public works located in congested urban areas, in order to minimize their impact on the environment and on users of the local road network. In order to reach this goal, a problem is proposed and solved for minimizing the total system cost, that of the operational costs of the diverse transport types used and the costs for the road user caused by increased congestion due to the circulation of heavy vehicles transporting material to site. This optimization problem is proposed a bi-level mathematical programming model. The upper level defines the function of the total cost of the system which has to be minimized subject to environmental restrictions on atmospheric and sound pollution. The lower level defines the optimization problem that defines road user behavior, assuming they choose the route that reduces their total individual journey costs to a minimum. Given the difficulties associated with solving this problem due to the uniqueness of the solution, a heuristic algorithm is proposed for generating acceptable solutions Both the developed model and the specific solution algorithm are applied to the real case of a new leisure and fishing port at Laredo (Northern Spain), obtaining a series of conclusions from the corresponding sensitivity analysis.
Journal of Computing and Information Technology, Jun 1, 2016
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Intern... more This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
El Cambio hacia la Movilidad Sostenible es Posible
El objetivo principal de este articulo es demostrar que el cambio hacia la movilidad sostenible u... more El objetivo principal de este articulo es demostrar que el cambio hacia la movilidad sostenible utilizando modos de transporte publico, es posible, aunque tal cambio se realice de forma lenta. Para ello se analiza (en el periodo 2.005-2.008) la evolucion de determinados indicadores de movilidad mediante la aplicacion de una serie de medidas de planificacion de transporte publico en la ciudad de Santander (Espana). Este conjunto de medidas fueron propuestas a traves de la calibracion y posterior uso de un modelo de optimizacion binivel, el cual incluye en su nivel superior una funcion de coste social y en el nivel inferior un modelo combinado de reparto modal y asignacion a la red de transporte privado y publico. Como primer resultado y con datos del 2008, se ha podido comprobar una leve reduccion del modo auto (-2,8%) y un importante crecimiento del modo bus (9,5%). Atendiendo a las predicciones realizadas en el ano 2.005, estos resultados confirman el buen grado de precision alcanzado con el modelo, y sobretodo, que las medidas propuestas estan en la linea inicialmente planteada del cambio modal.
Sustainability, May 25, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
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Papers by Luigi dell'Olio