Search Results (87)

The concentration of tourist flows along short urban links caused by cruise stops in medium-sized Mediterranean ports exacerbates traffic and localized environmental externalities. This study evaluates the willingness to pay (WTP) of cruise passengers for an electric tram that would connect the Gaženica Port with Zadar’s historic center, an intervention designed to cut travel time and reduce on-street congestion and emissions. Over the course of two seasons, a two-wave, two-site, in-person survey was conducted at the port and in the city center. The instrument adopts a double-bounded dichotomous choice (DBDC) contingent valuation design with randomized starting bids that were calibrated using a pre-test that benchmarked prevailing transport pricing. Primary WTP estimates are obtained from a binary choice model with socio-demographic and environmental covariates; whereby inference relies on cluster-robust errors. Robustness is assessed through three complementary checks that do not require additional data: (i) a bivariate specification to account for within-respondent correlation between first and follow-up bids; (ii) Turnbull nonparametric bounds for the interval-censored WTP distribution; and (iii) starting-point tests using split-sample estimation and bid-set indicators. A spike adjustment based on “no–no at the lowest bid” responses is explored where appropriate. Beyond its methodological contribution, this research advances the sustainable tourism development discourse by quantifying visitors’ financial support for low-emission urban mobility infrastructure that mitigates environmental stresses while preserving residential life quality. The results integrate cruise tourist management with the more general goals of resilient and sustainable urban destinations by offering a decision-ready value input for port-city mobility planning in historic Mediterranean centers. Full article

In recent decades, cruise tourism has emerged as a key economic driver for port cities, while simultaneously intensifying environmental pressures and socio-spatial inequalities. Despite growing scholarly attention, research exploring how these pressures are distributed within urban contexts and how they interact with pre-existing vulnerability patterns remains scarce. This study addresses this gap by proposing a GIS-based integrated methodological framework, the Port-city Risk Integrated Spatial Method (PRISM), applied to the Mediterranean port city of Malaga, Spain. The approach combines socio-demographic indicators and data related to spatial amenities with environmental pressures from cruise ship emissions to construct an Urban Socio-Environmental Complexity Index. Emission scenarios for peak cruise days were estimated using a bottom-up methodology and spatialized through atmospheric dispersion modeling, enabling their integration with exposure, vulnerability, and urban capacity indicators. The results reveal marked intra-urban heterogeneity and highlight the emergence of cumulative risk hotspots in areas adjacent to the port and along prevailing inland dispersion corridors. This study demonstrates the potential of integrated spatial indices as decision support tools for urban planning, offering a replicable framework for other port cities facing similar tourism-driven transformations. Full article

Personalized itinerary planning for large-scale passengers under resource constraints is a critical challenge in enhancing the operational efficiency and service quality of cruise tourism. Traditional clustering methods, which primarily rely on geometric similarity, often fail to address the intricate coupling between passenger preferences and finite venue capacities, lacking predictive capability for the ultimate planning quality. To overcome these limitations, this study proposes a novel bio-inspired data-driven hybrid optimization framework for the cruise itinerary planning task unit partition. The framework innovatively integrates a Genetic Balanced Clustering Algorithm (GBCA) for multi-objective passenger grouping, Kernel Principal Component Analysis (KPCA) for feature extraction from preference data, an improved Adaptive Spiral Flying Sparrow Search Algorithm (ASFSSA) for hyperparameter optimization, and a Kernel Extreme Learning Machine (KELM) for data-driven prediction of itinerary planning quality. This synergy enables the framework to dynamically allocate venue capacities based on group preferences and optimize partitioning towards maximizing overall benefits, ensuring load balance and fairness. Extensive experiments on simulated cruise scenarios demonstrate that the proposed framework significantly outperforms conventional methods, improving segmentation quality by at least 40% while exhibiting superior convergence speed and stability. This work provides a scalable, intelligent solution for complex resource-constrained scheduling problems, showcasing the effective application of bio-inspired data-driven methodologies in engineering optimization. Full article

The paper investigates the relationship between ESG transparency/performance and financial performance in tourism, with a focus on profitability (ROA), capital structure (D/E), and cost of capital (WACC). The empirical analysis uses a 2019–2024 panel for 10 listed tourism companies—Booking Holdings, Expedia Group, Airbnb, Marriott International, Hilton Worldwide, Hyatt Hotels, InterContinental Hotels Group, Wyndham Hotels & Resorts, TUI Group, and Carnival Corporation—covering distinct sub-sectors (OTA/Platform, Hotels, Tour Operator, Cruise). The study is based on a quantitative methodology that includes descriptive analyses and the application of advanced econometric models. Methodologically, the paper applies panel econometric models with fixed effects (firm and year), sectoral controls and robustness tests (ESG × Sector interactions, alternative size specifications). The results indicate, on average, a positive association between ESG and profitability (ROA) scores, as well as a negative relationship with WACC (indicating a lower cost of capital for firms with higher ESG), after controlling for size, country and sector. The effects are heterogeneous across sub-sectors, with the ESG–performance relationship more pronounced in hotels (where capital intensity and operational exposure are higher) and less pronounced for OTA platforms, but remain directional and statistically significant in most specifications. Overall, ESG compliance and performance emerge not only as reporting obligations, but also as strategic tools associated with sustainable competitive advantage in tourism. Therefore, the CSRD is not just a reporting obligation, but also a strategic tool that boosts financial performance and managerial innovation. The study provides directions for future research on the use of artificial intelligence in the evaluation of ESG reporting and the expansion of the analysis to other economic branches. Full article

Resilience in cruise tourism has been particularly important in recent years and especially after crises such as the financial crisis (2011–2013), in addition to the COVID-19 pandemic (2020–2021). The role of cruise ports is not limited only to the operation of the transport service, but also includes shaping their competitive position, as well as their ability to maintain and recover cruise demand in times of crisis, while contributing to the long-term sustainability of tourism. This study analyzes the resilience of passenger demand in eight Greek cruise ports during the period 2010–2024, examining the stability and recovery of passenger traffic through two composite indicators, the Project Management Index (PMI) and the Multimodal Access Index (MAI). Panel data were used with the passenger traffic as the dependent variable and the PMI and MAI as independent variables. The results show that multimodality plays the most important role for the resilience of cruise demand as it enhances the stability and recovery of cruise passenger demand while the pandemic had a negative impact. The contribution of the study lies in the quantitative mapping of the resilience of cruise ports, which is part of the framework of sustainable tourism development, offering useful tools for policy-making and strategic planning of cruise ports’ connectivity. Full article

Digital transformation has reshaped how cruise firms acquire, engage and retain customers. However, existing research rarely integrates these behavioural dimensions within a unified analytical framework. This study applies a hybrid regression–Fuzzy Cognitive Mapping (FCM) approach to examine how acquisition channels, engagement indicators and online reputation metrics jointly shape website performance and digital innovation among leading global cruise operators. Using multi-source web-analytics data, regression models identify the direct predictive effects of organic, paid, referral and email channels, while FCM captures their non-linear feedback dynamics. Results reveal that visibility does not equate to engagement: organic and referral traffic drive exposure but not depth, whereas authority and reputation mediate engagement–performance relationships. Scenario simulations reveal asymmetric responses within the digital ecosystem. Consequently, balanced, knowledge-driven channel diversification emerges as a key strategic advantage. The findings extend the Knowledge-Based View (KBV) by conceptualising behavioural analytics as organisational knowledge resources that enable adaptive learning and digital innovation. The proposed framework contributes to both tourism analytics and information systems research, offering a scalable model for understanding how data-intensive service firms convert behavioural information into strategic knowledge and sustainable competitive advantage. Full article

The polar regions face growing threats from climate change, making sustainable practices in polar cruise tourism essential. This study examines the role of marketing in promoting sustainability by analysing cruise operators’ websites (n = 50) and testing alternative advertising strategies. Survey findings (n = 790) highlight that well-crafted sustainability advertisements can reduce interest in close-up wildlife interactions, increase willingness to pay for conservation-focused trips, and promote the adoption of sustainable technologies in travel. Content analysis shows that award-winning operators emphasise conservation, sustainability, and community engagement through distinctive digital traits. While traditional adverts were preferred for their adventure focus, sustainability adverts resonated with those valuing education. This study provides valuable insights for operators, policymakers, and researchers dedicated to advancing sustainable tourism in the polar regions. Full article

This study presents a comprehensive dataset developed to monitor coastal water quality in the south-central region of Vietnam, focusing on Nha Trang Bay. Environmental data were collected from four research cruises conducted between 2013 and 2024. Water samples were taken at two depths: surface samples at approximately 0.5–1.0 m below the water surface, and bottom samples 1.0 to 2.0 m above the seabed, depending on site-specific bathymetry. These samples were analyzed for key water quality parameters, including biological oxygen demand (BOD₅), dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), and Chlorophyll-a (Chl-a). The data establish a valuable baseline for assessing both spatial and temporal patterns of water quality, and for calculating eutrophication index to evaluate potential environmental degradation. Importantly, it also demonstrates practical applications for environmental management. The dataset can support assessments of how seasonal tourism peaks contribute to nutrient enrichment, how aquaculture expansion affects dissolved oxygen dynamics, and how water quality trends evolve under increasing anthropogenic pressure. These applications make it a useful resource for evaluating pollution control efforts and for guiding sustainable development in coastal areas. By promoting open access, the dataset not only supports scientific research but also strengthens evidence-based management strategies to protect ecosystem health and socio-economic resilience in Nha Trang Bay. Full article

The islands of the Cyclades (located in the South Aegean Sea in Greece) are one of the most famous summer destinations worldwide. Every year, millions of Greek and foreign travelers visit the Cyclades to enjoy the islands’ dazzling light and beautiful crystal blue waters. The substantial increase in tourist arrivals has presented significant challenges to the islands, notably regarding sustainable infrastructure and consumer practices. Limited resources, especially water and energy, coupled with waste management issues, pose considerable pressure on the environment and local communities. This research paper investigates the facilities that promote the Cyclades islands (such as Mykonos, Santorini, and Paros) as an ecologically viable destination, analyzing the problems that arise during the adoption of sustainability. Data were retrieved from academic databases and publicly accessible sources, covering initiatives implemented between 2019 and 2025. The comparative analysis reveals distinct sustainability approaches: Santorini employs regulatory, infrastructure-heavy solutions, including cruise visitor caps (8000/day) and desalination capacity expansion; Mykonos relies predominantly on private sector initiatives despite experiencing a 5.8% decline in international arrivals; Paros demonstrates community-driven approaches, leading plastic reduction efforts through the “Clean Blue Paros” initiative. Key challenges persist across all islands, including water consumption doubling since 2020, waste increases of 350% during peak season, and tensions between economic growth and cultural preservation. The findings indicate no single blueprint for sustainable tourism development, emphasizing the need for destination-specific strategies combining policy intervention, technological innovation, and community engagement. Full article

Coral reefs provide environmental goods and services that support biodiversity and people but face diverse threats. To assess the human factors that might be influencing the status of Cuban coral reefs, we collected and analyzed data from three sources: observations made on a research cruise that circumnavigated Cuba’s waters, expert knowledge, and updated published information. Our results show that small-scale fisheries are predominant among human factors influencing Cuban coral reefs, with more than 97% of the fishing incidents detected in situ during the expedition. Many Cuban reefs are heavily fished, have low levels of contamination, and enjoy high legal protection but experience inadequate enforcement. Tourism occurs on many reefs but could be sustainably increased based on its role in supporting enforcement and compliance and reducing fishing pressure. Densities of marine debris were generally lower in Cuban waters than other Caribbean locations and even lower within protected areas. Many human factors are likely acting synergistically, making management a challenge. This is the first at-sea comprehensive visual survey of human factors in Cuban waters and evaluation of marine debris on Cuba’s reefs, establishing a baseline for future assessments. These findings highlight potential human impacts that must be addressed to safeguard the health of Cuba’s marine ecosystem. Full article

The COVID-19 pandemic disrupted tourism systems worldwide, particularly ecologically sensitive and tourism-dependent regions such as the Galapagos Islands. This study investigated the impact of the pandemic on profiles of tourists visiting Santa Cruz Island by comparing an analysis from 2019 to data we gathered in 2021. Using survey-based data and cluster analysis, we identified significant shifts in tourist origin, travel modalities, and expenditure patterns. Results showed a marked increase in domestic tourism, with Ecuadorians becoming the dominant visitor group during the pandemic, primarily favoring land-based tourism and shorter stays. In contrast, international tourists remained present in niche, higher-spending segments associated with cruise-based and multi-island itineraries. These findings highlight a temporary yet meaningful transformation in the tourism dynamic, driven by changes in risk perception, economic factors, and policy restrictions. The emergence of these segments underscores the need for adaptive destination management strategies that align with sustainability goals, conservation priorities, and socioeconomic resilience. We also demonstrated the value of structured surveys as a cost-effective tool for evidence-based decision-making in resource-constrained settings. Full article

The growing participation of elderly individuals in cruise tourism introduces asymmetry in passenger mobility and perception, posing challenges for onboard emergency evacuation. To address this, an interactive cellular automata model that enables dynamic human–signage interaction, incorporating age-dependent variations in walking speed and visual field. The model simulates passenger behavior during evacuation by integrating a static potential field, signage attraction, and directional guidance mechanisms. A bi-objective optimization framework is proposed to determine the optimal signage layout for symmetrical cruise ship theaters, balancing evacuation effectiveness across age groups with design constraints such as economic considerations. The optimization uses a genetic algorithm through simulation experiments under varying age compositions and smoke concentration levels. Results indicate that age-sensitive and interactive signage design substantially enhances evacuation efficiency, particularly for elderly passengers and under limited visibility conditions. This study offers practical insights into signage layout strategies for enhancing shipboard evacuation safety in diverse demographic and environmentally complex scenarios. Full article

Cruise tourism plays a prominent role in Kotor’s tourism strategy, contributing to local income and shaping the city’s recent development. Driven by growing global demand, cruise arrivals have transformed the destination, raising questions about sustainability and local well-being. This study examines how residents perceive the impacts of cruise tourism across economic, sociocultural and environmental dimensions. Based on a sample of 214 residents, data were collected using a structured questionnaire and analyzed through descriptive statistics, exploratory factor analysis and ANOVA. The findings indicate predominantly negative attitudes, especially regarding increased living costs, overcrowding and limited local economic benefits. Environmental concerns were also strongly expressed. Notably, there were no significant differences in perceptions based on residents’ proximity to the cruise port or their employment in tourism. These results contrast with earlier research suggesting that tourism involvement or spatial proximity leads to more positive attitudes. In Kotor’s case, widespread dissatisfaction suggests that a saturation point has been reached, highlighting a growing disconnect between cruise tourism growth and community well-being. The findings indicate the need for participatory and sustainable tourism planning and reaffirm the relevance of conceptual models such as Doxey’s Irridex in assessing resident attitudes in over-touristed destinations. Full article

In the context of global warming, polar tourism is developing rapidly, and the demand for polar cruise travel in the Northwest Passage continues to increase, while sea ice has long been a key factor limiting the development of polar cruise tourism. This study focuses on the operational risk of sea ice on cruise ships in the Northwest Passage (NWP), aiming to provide a scientific basis for ensuring the safety of cruise ship navigation and promoting the sustainable development of polar tourism. Based on ice data from 2015 to 2024, this study used the Polar Operational Limit Assessment Risk Indexing System (POLARIS) methodology recommended by the International Maritime Organization (IMO) to establish three scenarios for the route of ice class IC cruise ships: light ice, normal ice, and heavy ice. The navigable windows were systematically analyzed and critical waters along the route were identified. The results indicate that the navigable windows for IC ice-class cruise ships under light ice conditions are from mid-July to early December, while the navigable period under normal ice conditions is only from mid- to late September, and navigation is not possible under heavy ice conditions. The study identified Larsen Sound, Barrow Strait, Bellot Strait and Eastern Beaufort Sea as critical waters on the NWP cruise route. Among them, Larsen Sound and Eastern Beaufort Sea have a more prominent impact on voyage scheduling because their navigation weeks overlap less with other waters. This study provides a new idea for the risk assessment of polar cruise ships in ice regions. The research results can provide an important reference for the safe operation of polar cruise ships in the NWP and the decision-making of relevant parties. Full article

Multi-functionality and high mission adaptability are important trends in the development of future aircrafts. Trans-domain aircraft, with their unique take-off and landing capabilities and cross-medium capability, have significant potential in the field of emergency rescue, marine monitoring and tourism. Trans-domain aircraft will meet various flight conditions in different domains. Therefore, the design of wing structures must consider the mechanical effects of different media on the aircraft. In the current study, a fishbone variable camber wing is proposed based on the concept of a camber morphing wing. The relationship between the actuation force and the trailing edge deflection is analyzed using the fluid–structure interaction. The flight performance of the flight conditions including cruise or climb underneath and cruise above the water can also be evaluated in the design iteration since the load-carrying capability can be satisfied and the structural deformation of the fluid loads and the actuators is taken into account. Finite element analysis is also employed for the structural verification. Finally, a structural model is manufactured, which is tested above and under water by measuring the trailing edge deflection using the digital image correlation technology. Full article