The connectivity and dependency between various connected locations has become stronger as the rate of urbanization and economic expansion has accelerated. Transport has played a critical role in promoting the flow of economic benefits and growth across linked geographical areas since its origin. Therefore, the purpose of this paper was to provide deeper insights into the relationship between service quality and client satisfaction by exploring the mediating and moderating role of service quality and quality pursuer on client satisfaction. The research used quantitative approaches and employed a non-probability sampling technique. The 240 samples were analysed using Partial Least Squares Structural Equation Modelling (PLS-SEM). The findings show that there is a positive relationship between, assurance, responsiveness, convenience, and service quality. Conversely, findings show an insignificant relationship between empathy and service quality. Findings specify that service quality mediate the association between assurance, responsiveness, convenience, and client satisfaction. Nevertheless, the study observed an insignificant mediation effect of service quality on the linkage between empathy and customer satisfaction. The findings specify that quality pursuers have a significant moderating effect on the relationship between service quality and client satisfaction. As a result, the findings of this present research give useful information for improving client satisfaction and the role of long-term viability of the high-speed rail business in the national economy. This research offers valuable insights for transportation agencies by examining the link between service quality attributes and passengers’ intentions to reuse services, aiming to enhance the provided service, boost ridership, and support the implementation of sustainable transportation policies. The study recognizes certain limitations, such as the restricted sample size and the diverse characteristics of high-speed rail passengers, which may skew the understanding of how service quality affects customer satisfaction and subsequent behaviors. Our results suggest that satisfaction levels among passengers could differ based on the specific routes taken and the types of seating arrangements offered. Consequently, authorities should priorities service quality and its four important characteristics.

In fragile states, recurrent transport disasters are frequently treated as isolated humanitarian incidents, despite being rooted in deeper structural and governance-related vulnerabilities. This article introduces the River Transport Vulnerability Index (RTVI), a conceptual framework designed to assess systemic disaster risk in inland waterway transport systems. The framework is empirically applied to the 2025 sequence of shipwrecks in Équateur Province, Democratic Republic of Congo. The study is based on field research conducted between March 2023 and September 2025, combining 47 semi-structured interviews, incident reconstruction, participant observation, and multisource casualty data triangulation. Five vulnerability domains are integrated into a weighted composite index: governance capacity, economic resilience, territorial control, social cohesion, and information environment. Domain weights are derived using the Analytic Hierarchy Process (AHP) based on a 12-member expert panel, allowing for structured comparison and consistency testing. The results indicate that the Équateur river corridor exhibits high systemic vulnerability, with an RTVI score of 61.6, a classification that remains stable across multiple sensitivity analysis scenarios. Vulnerability is driven primarily by regulatory non-enforcement, chronic vessel overcrowding, territorial fragmentation, and weak crisis communication mechanisms. These findings highlight the necessity of treating river transport safety as a central component of disaster risk governance in fragile state contexts.

The paper discusses how artificial intelligence (AI) is transforming public services that are provided to people by governments and directing decision-making in the government. The research addresses the topic of AI technologies being fitted into government processes more often to achieve efficiency, better service provision, and data-driven policymaking. The research applies a secondary research methodology, which is a desk analysis of the available literature, in assessing the opportunities and challenges linked to the use of AI in the public sector. The results show that AI can enhance the quality of government and society services in the field of governance management, law enforcement, and medical services, and help make more informed administrative decisions. The paper also points to the significance of tackling the problem concerning data privacy concerns, ethical governance, and institutional preparedness. The study indicates that the successful implementation of AI should entail proper technological infrastructure, regulatory framework, and organizational capacity in government institutions.

Polymer–cement waterproof coatings couple the rigidity of cement and the elasticity of polymers into compositmembranes that prevent water penetration. In the system, polymer particles aggregate to form films in the cementitious matrix and hence plug up capillary pores and bridge micro- cracks].In this paper we present in depth case study of Dunlop K205—an acrylic polymer–cement coating for the Chinese market—and position the practical experience on the broader context of review of recent literature and commercial products. K205 was used to seal a high‑moisture bathroom in Santa Clara, USA. After six months, the coating was waterproof, flexible and did not delaminate even at elevated relative humidity.Compressive strengths and water absorptions are demonstrated in numerical results; polymer content is used to explain their variations in simulation. Comparison tables are provided among K205 and other products like Sika Damp Proofing Slurry, Drizoro Maxseal Flex and SinoMaco crystalline coatings. Permeability reduction formulas and bond strength formulas are derived for polymer contents. Real observations and simulation results for both of them are visualized by figures.We refer to $35$ articles — mostly which are published post-2020, according Vancouver style, wherein findings are reported and emphasized the benefits of polymer– cement waterproof coatings for residents as well as proper mixing, application and concerns related to sustainability issues.