Multi-criteria decision-making for solving transport sustainability issues: an overview

Spadaro I., Pirlone F.

The topic of sustainable mobility is now a priority at the urban level. Today’s cities are often very busy, polluted, and dangerous. Therefore, to encourage sustainable mobility is important; it brings territorial development, environment, health, society, and economy benefits. The corona virus disease-19 (COVID) emergency, which occurred at the beginning of 2020, highlighted the already critical situation in many cities and how our mobility habits were not, even before, so sustainable. Within sustainable mobility, the concept of safety and security is important to consider. In the literature, safe mobility is often associated with the theme of accidents. The pandemic has highlighted the need to consider safety also from a health point of view. Municipalities, as known, also according to European guidelines, have a specific tool at their disposal to promote sustainable mobility: the Sustainable Urban Mobility Plan (SUMP). This paper intends to propose a methodological approach aimed at integrating the health security aspect in the SUMP. In this research, in order to promote safe mobility, different aspects were considered: accidents, risk perception, and health emergencies. For each aspect, specific indicators and good practices were proposed for the achievement and monitoring of the expected results. The paper refers to the European context with particular attention to Italy; La Spezia was chosen as a case study.

Rześny-Cieplińska J., Szmelter-Jarosz A., Moslem S.

• Research focus on issues concerning sustainability of city logistics. • The biggest obstacle of the UTS is congestion-problems with deliveries or commuting. • The SUMPs preparation, are helpful in urban transport system improving. • The variables as: group of stakeholder, age, city, determine their priorities related to the UTS. Tricity is a specific area in Poland because of the geographical location, landscape, access to the sea, access to a few container terminals and being an agglomeration. That is why both for inhabitants and local businesses city logistics issues are particularly important. The need for more sustainable transportation and integrative planning processes in cities, has been widely developed since 2013 when Urban Mobility Package set up a concept for SUMP (Sustainable Urban Mobility Plans) Within this idea, EU provides financial support for urban mobility projects. So various city logistics’ solutions are implemented but with a different level of success. City logistics measures have in fact their weaknesses and strengths. It is rather challenging to find an optimal solution because it is difficult to take into account the complexity and diversity of urban logistics while keeping all sides engaged. City logistics seems to be a quite difficult issue, mostly because it contains several levels of complexity. Not only it refers to the diversity of the goods transported and heterogeneity of the transportation means, but also involves multiple stakeholders. The most important are authorities, transportation operator, retailers and residents. These stakeholders most often represent different aims and priorities. While local authorities are interested in reducing pollution, congestion or noise, transportation operators and retailers are mainly focused on keeping costs under control while maintaining service levels. In the study, in-depth interviews technique with various stakeholders of city logistics was used. The interview was based on a questionnaire consisting of open and closed questions. One scale question assessed the importance of a given dimension of sustainable urban logistics for the particular stakeholder. This approach made it possible to identify the priorities of individual stakeholder groups. The respondents were a few individual stakeholders for each group identified within the literature review. To address the aim of the study, to analyse gathered data, both qualitative and quantitative methods were implemented. Among the qualitative methods, the Delphi method, text analysis and text mining techniques were used to identify the main characteristics of stakeholders opinions. Then, to draw the detailed results for each group, the Kruskal-Wallis test was held, equivalent to ANOVA, but not requiring normal distribution of variables, impossible to achieve at small sizes of stakeholder groups samples. The Kruskal-Wallis test allowed identifying similarities and differences between the priorities of the studied groups in light of the research problem being examined.

Lee J., Arts J., Vanclay F.

• Land use & transport integration (LUTI) does not guarantee social sustainability. • The level in the urban hierarchy influences social outcomes from LUTI. • A context-specific integrated approach is essential for positive outcomes. • Multi-level governance is conducive to fair distribution of benefits across a city. • Rapidly-growing cities need to consider timely implementation of LUTI. Land use and transport integration (LUTI) has been promoted around the world as essential for sustainable urbanization. Using Seoul as a case study, this paper critically examines if and how LUTI policy can bring positive social outcomes, including accessibility and quality of life, in rapidly-growing megacities. We explored stakeholder views about the experience of these outcomes in different localities, and about critical elements and processes needed to enhance social outcomes. Our research identified that facilitating compact urban form around transport nodes does not guarantee increased accessibility or livelihood opportunities. The outcomes are closely related to the quality of development around nodes, accessibility to public facilities, local mobility, and functionality of pedestrian paths. Ensuring sustainability of social outcomes from LUTI approach requires: balancing restrictions and incentives to control quality of development around nodes; creating cost-effective strategies to maintain local environmental quality; applying flexible rules to address varying priorities and opportunities in different localities; and multi-level planning that balances the responsibilities of metropolitan and local stakeholders to facilitate desired outcomes. We conclude that, in rapidly-growing cities, a flexible and holistic approach to integration should be applied to reflect diverse needs and local circumstances and to ensure fair benefits across the city.

Karolemeas C., Tsigdinos S., Tzouras P.G., Nikitas A., Bakogiannis E.

Shifting from a fossil-fueled to an eco-friendly vehicle fleet in cities could pave the way towards a more sustainable future. Electric Vehicles (EVs) should thus be prioritized, so that they could replace conventional vehicles gradually. In this context, an EV-accommodating infrastructure, which ensures the functionality of the entire system, is essential. This study aims to develop a methodological framework to identify suitable locations for the deployment of EV charging points in urban environments. To meet this objective, we acquired a mixed method approach including a systematic literature review, 12 semistructured stakeholder interviews which were thematically analyzed, and an Analytical Hierarchy Process (AHP). The outcome is a spatial model function, which consists of parameters and weights for estimating the suitability of each urban road link that will allow the establishment of EV charging points. Results show that the key location selection factors are: transport hubs, marked or controlled parking spaces, and points of interest. The less significant factor is public services. Therefore, there is a preference, in stakeholder level, for transport features over the land use ones (69% over 31%). Although this research is conducted in Greece, we intend to suggest methods and generate valuable findings that may be valid and generalizable for a more global context.

Kumar A., Anbanandam R.

PurposeFreight transportation practices accounted for a significant share of environmental degradation and climate change over the years. Therefore, environmentally responsible transport practices (ERTPs) become a serious concern of freight shippers and transport service providers. Past studies generally ignored the assessment of ERTPs of freight transport companies during a transport service contract. To bridge the above literature gap, this paper proposed a hierarchical framework for evaluating freight transport companies based on ERTPs.Design/methodology/approachIn a data-driven decision-making environment, transport firm selection is affected by multiple expert inputs, lack of information availability, decision-making ambiguity and background of experts. The evaluation of such decisions requires a multi-criteria decision-making method under a group decision-making approach. This paper used a data-driven method based on the intuitionistic fuzzy-set-based analytic hierarchy process (IF-AHP) and VIseKriterijumska Kompromisno Rangiranje (IF-VIKOR) method. The applicability of the proposed framework is validated with the Indian freight transport industry.FindingsThe result analysis shows that environmental knowledge sharing among freight transport actors, quality of organizations human resource, collaborative green awareness training programs, promoting environmental awareness program for employees and compliance of government transport emission law and practice have been ranked top five ERTPs which significantly contribute to the environmental sustainability of freight transport industry. The proposed framework also ranked freight transport companies based on ERTPs.Research limitations/implicationsThis research is expected to provide a reference to develop ERTPs in the emerging economies freight transport industry and contribute to the development of a sustainable freight transport system.Originality/valueThis study assesses the environmental responsibility of the freight transportation industry. The emerging economies logistics planners can use proposed framework for assessing the performance of freight transportation companies based on ERTPs.

Ortega J., Moslem S., Tóth J., Péter T., Palaguachi J., Paguay M.

The Park and Ride (P&R) system is a set of facilities available to private vehicle users to transfer to public transportation in order to complete their journey. The location of the facilities is determined by the purpose for which they have been created, for example, to reduce traffic in the central business district (CBD), reduce pollution, or increase the use of public transportation. Thus, a set of six main criteria and 19 sub-criteria are considered that are particularly important for decision-makers about the location of P&R facilities in a city. In order to identify which criteria are relevant, a method belonging to the multiple criteria decision is needed. The central point of this study is to evaluate the problem of the location of the facilities of the P&R system according to the point of view of the experts. For this aim, the Best Worst Method (BWM) is adopted to estimate the location of the facilities of the P&R system. The questionnaire survey has been designed estimated by ten transport experts in the related field. The recently created BWM was conducted. The results highlighted that “accessibility of public transportation” is the most important aspect of the problem of the location of P&R facilities. The results obtained provide greater accuracy in the location of facilities problem than the pure analytic hierarchy process method (AHP).

Neofytou H., Sarafidis Y., Gkonis N., Mirasgedis S., Askounis D.

This study performs a model-based multiple-criteria decision analysis (MCDA) for supporting policy makers in Greece, in designing energy-efficiency policies through the selection of the most effect...

Zapolskytė S., Vabuolytė V., Burinskienė M., Antuchevičienė J.

The development of science and technology parks (STPs) has become a trendy tool for promoting the economy, innovation, and technology for more than 30 years worldwide. However, STPs poses challenges for urban planners seeking a vision of sustainable urban development. These places become an object of attraction for many highly skilled workers who create daily traffic flows. The proper accessibility and provision of transport infrastructure and services become the challenge for the development of such places because the availability of services influences the choice of travel mode and the possible employees’ travel behaviour. The authors of the research aim to assess the level of development of infrastructure and transport services conducive to the sustainable mobility of science and technology park staff in Vilnius city. Changing mobility behaviour into a more sustainable way is of interest to many scientists and practitioners, so the authors think that STP staff can represent a group of educated, working-age stakeholders within the city population, who has an interest in sustainable mobility travel options and can set an example of sustainable travel. Besides, recommendations for the planning and sustainable development from the sustainable urban mobility point of view of science and technology parks and similar institutions are provided. To achieve this goal, the authors use scientific empirical and theoretical research as well as multi-criteria decision-making (MCDM) methods. The results show the link between the distance from the developed STP site to the city centre and the more sustainable mobility of workers. Therefore, it is suggested to develop STPs closer to the urban centre as it often does not require large-scale development, nor do they engage in the polluting industry. Moreover, the authors suggest the key criteria that should be considered for STP development.

Henke I., Cartenì A., Di Francesco L.

In the transport sector, a rational and shared planning process is commonly based on the comparison of different design alternatives through quantitative evaluations and stakeholders’ engagement. Among the most adopted evaluation methods, there are cost–benefit analysis (CBA) and multi-criteria analysis (MCA). Both these methods have strengths and weaknesses, which do not allow the conclusion that one technique is dominant over the other. Starting from these considerations, the aim of this paper is to propose a sustainable evaluation process for investments in the transport sector, based on the combined use of both CBA and MCA analysis and a stakeholders’ engagement. The proposed evaluation method was also applied to a real case study: the decision-making process for a new highway in a high naturalistic and touristic area in north of Italy. Furthermore, a “weighted criteria process definition” based on the Delphi method was also performed within a public engagement process. Research results show that the application of both the evaluation analyses (CBA and MCA) allows the selection of the most rational althernative from a sustainable, shared and technical point of view. Precisely, the estimations performed underline that the CBA analysis significantly underestimated the non-users’ benefits, while the opposite occurred for the MCA analysis. The incidence of the non-users’ benefits is only the 14% of the total for the CBA, while it reaches more than the 79% for the MCA. This result is very relevant underling how, for a decision-making processes aimed in comparing different design alternatives for which non-users impacts are expected as relevant against the users ones, the unique application of the most consolidated CBA analyses are not always adequate, while the joint use of the two evaluation methods ensures robust and rational choices for a sustainable development.

Yang L., van Dam K., Zhang L.

This paper aims to provide a framework for policy-makers and transportation and urban design professionals to evaluate alternative urban plans and infrastructure design, allowing them to select a set of locally relevant indicators to help assess scenarios considering sustainable development and overall system performance improvement in line with specific project goals. Using methods of systematic review, content analysis, multi-criteria analysis, and expert consultation, a three-level goal system is proposed, leading to the generation of 64 Key Performance Indicators (KPIs), both qualitative and quantitative, and an indicator set of 227 items. To allow stakeholders to apply their own set of indicators, the approaches and tools of measuring these indicators as well as the ways of using this indicator set are presented to assist decision-makers in evaluating and choosing optimal plans and designs.

Al-Kaabi M.J., Maraqa M.A., Hawas Y.S.

Many studies have been carried out to evaluate the sustainability of transportation systems, but little attention has been given for the design of roadway intersections. This study aimed to establish a framework and develop a tool to assess the sustainability of roadway intersections from a road-user perspective. Sustainability indicators at the strategic level were extracted from the literature and were utilized with relative weights to develop economic, environmental, and social indices that would be combined into a composite sustainability index (CSI) tool. The tool was applied to four case studies of intersections in Al Ain, United Arab Emirates. For each case study, the sustainability of fifteen design alternatives was evaluated for different scenarios of traffic volume and operational speed. Dimensional indices and the overall CSI were determined using the Multi-Criteria Decision Making method. Results indicated that traffic volume had a significant impact on intersection sustainability ranking, while the effect of operational speed was insignificant. Moreover, weight assignment had an effect on determining the most sustainable design alternative, where the best alternatives of the dimension with the major weight would most likely be the most sustainable. The developed tool would assist decision-makers in other cities to assess intersection projects that correspond to their regional goals.

Nguyen T.T., Brunner H., Hirz M.

The transport sector is responsible for a broad range of ecologic impacts, e.g., energy consumption, greenhouse gas emission or air pollution. It is therefore highly important to assess transport solutions in terms of their sustainability. Widely used approaches for sustainability analysis in the transport sector include life cycle assessment (LCA), economic approach, multi-criteria decision analysis (MDCA), and assessments based on indicators. In practice, these approaches consist of several methods, i.e., product-based LCA, fleet-based LCA, cost benefit analysis (CBA), cost effectiveness analysis (CEA), value measurement MDCA, ideal-solution based MDCA, outranking MDCA, and indicator-based assessment. Even though there is a larger number of assessment methods, a holistic framework for sustainability evaluation of different transport solutions is still missing. Selection of suitable assessment methods depends on a vast array of factors. This paper proposes to utilise “application levels” for the selection process. Firstly, the paper provides an analysis of the application levels of the common assessment methods and evaluation criteria within the transport sector based on a literature review. The application levels are illustrated by identifying two dimensions, namely system level and decision-making level, ranging from Low to High. Afterwards, a six-step framework for a holistic evaluation of transport alternatives is proposed.  Keywords: sustainability assessment, economic approach, indicator-based assessment, life cycle assessment, multi-criteria decision analysis, sustainable transport

Brůhová Foltýnová H., Vejchodská E., Rybová K., Květoň V.

During recent decades, the debate on how to sustain urban mobility has accelerated. Transport decision-making has been more reflective of sustainability issues and quality of life in cities; this process has especially accelerated with the setting of modern urban mobility planning concepts, substantially focusing on transport demand regulation and management, and Sustainable Urban Mobility Plans taking over the role of cities’ primary transport-related strategic documents. The approaches to sustainable mobility visioning and planning differ within cities, as do their key stakeholders’ opinions. Our research aims to reveal the main shared viewpoints on the preferred paths towards sustainable urban mobility. We use the Q method, which is a statistical method to study subjectivity. It enables determination of characteristic shared viewpoints on a particular subject. A qualitative analysis assessing subjective opinions is combined with the quantitative approach of a factor analysis of statements ranked by respondents. The study was undertaken on 36 carefully selected stakeholders situated within the Czech Republic. Our results indicate that even stakeholders sharing the same definition of sustainable urban mobility may substantially differ in regard to their ideas on how to achieve it. Furthermore, we show that some of the attitudes expressed and measures appreciated by our respondents would not be recognised as sustainable by environmentalists. There is still a wide gap between sustainable mobility theory and its implementation in practice. All these findings represent barriers to sustainable mobility development in urban areas. Therefore, the paper also conveys relevant policy implications.

Shekhovtsov A., Kozlov V., Nosov V., Sałabun W.

Problems related to sustainable urban transport have gained in importance with the rapid growth of urban agglomerations. There is, therefore, a need to support decision-making processes in this area, a trend that is visible in the literature. Many methods have already been presented as a useful decision-making tool in this field. However, it is still a significant challenge to properly determine the relevance of the criteria because it is one of the most critical points of many presented techniques to solve decision problems. In this work, we propose two new approaches to determining the relevance of particular decision criteria effectively in sustainable transport problems. For this purpose, we examine a study case for the evaluation of electric bikes evaluated against eight criteria, which have been taken from earlier work. We calculate the relevance of each criterion using four different approaches and then evaluate their effectiveness using a reference ranking and popular multi-criteria decision analysis methods. The results are compared with each other by using similarity coefficients. Finally, we summarize the results obtained and set out further methods of development.

Blagojević A., Stević Ž., Marinković D., Kasalica S., Rajilić S.

The conditions of globalization often dictate the functioning of transport markets, so it is necessary to conduct frequent research in order to achieve sustainable business. This is achieved through adequate risk and safety management at all levels. The research carried out in this paper includes determining the state of railway traffic safety in a total of nine railway sections in Bosnia and Herzegovina (B&H). The aim of this paper is to develop a new integrated Entropy-Fuzzy PIPRECIA (PIvot Pairwise RElative Criteria Importance Assessment)-DEA (Data Envelopment Analysis) model for determining the state of safety in B&H under particular conditions of uncertainty. Additionally, the aim is to combine the advantages of linear programming (DEA), an objective method (Entropy), and a subjective method (Fuzzy PIPRECIA). In this way, an integrated objective–subjective model is created that provides accurate and balanced decision-making through their integration. Eleven sustainable criteria were defined and divided into six inputs and five outputs. The Entropy model was used to determine the weight values of the inputs, while due to the nature of the outputs, Fuzzy PIPRECIA was used to evaluate them. After the application of the two methods, the way of averaging their values was defined. The DEA model, which implies an input- and output-oriented model, was applied to determine which railway sections have satisfactory performance in terms of safety. Two sections were eliminated from further computation due to extremely poor performance and high risk. Then, the weighted overall efficiency ranking method was applied to determine the final ranking of the railway sections. The results obtained were verified through a sensitivity analysis, which involved changing the impact of the five most significant criteria and a comparison with two Multi-Criteria Decision-Making (MCDM) methods.

Sivilevičius H., Žuraulis V.

This paper presents an improved model of the interaction among transport system elements, which identifies six levels of interaction and their analysis. A framework of eight factors (criteria) and their interactions that improve the quality of life is developed. The Analytic Hierarchy Process, Average Rank Transformation into Weight, and rank correlation methods were used to calculate the normalized weights and compatibility indicators of the 54 expert criteria. The results show that the most significant improvements in quality of life are the development of transport infrastructure and its quality, the reduction of road traffic accidents, and the reduction of environmental pollution caused by the transport sector, all of which directly contribute to a sustainable urbanized society. The improvement in quality of life is least affected by the increase in the number of vehicles and their technical parameters, as well as by the increase in the share of the country’s Gross Domestic Product generated in the transport sector. The variance of the weights of the criteria was shown to depend on the different magnitudes of the fundamental scale of the pairwise comparison chosen by the experts, the variance (stability) of the experts’ personal opinions, and the net variance of the weights assigned to the criteria by the expert team. The results of this study can be used to develop a national or regional transport sector development strategy that takes into account the factors that have the greatest impact on quality of life.