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How Key Success Factors Improve Delay Mitigation in Construction Projects: The Mediating Role of Project Readiness
(2026-06-01)
Lithanarung, Sophon
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Laokhongthavorn, Laemthong
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Ahmed, Mukhtar
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Chatpattananan, Vuttichai
Construction projects continue to experience persistent schedule delays that adversely affect cost efficiency, quality, productivity, and stakeholder satisfaction. Although prior studies have extensively examined the causes of delays, limited empirical evidence explains how integrated managerial success conditions proactively improve delay mitigation capability. This study investigates the structural relationships among Key Success Factors (KSF), Project Readiness (PR), and Delay Mitigation (DM) in construction projects. The analysis primarily focuses on delay mitigation during the construction execution phase, where managerial capability and project readiness directly influence schedule performance and disruption response. A quantitative research design was employed using questionnaire data collected from 308 construction professionals in Thailand. KSF was conceptualized as a higher-order construct reflected by Project Execution Capability, Managerial and Digital Support, and Supply Chain Capability. Data was analyzed using Exploratory Factor Analysis, Confirmatory Factor Analysis, and Structural Equation Modeling. The findings indicate that KSF significantly enhances both Project Readiness and Delay Mitigation, while Project Readiness positively contributes to delay mitigation performance and partially mediates the relationship between managerial capability and project delay mitigation outcomes. The study provides an integrated capability-based framework and practical guidance for improving project delivery performance in uncertain construction environments.
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Empowering Sustainable Project Success in Construction: The Strategic Role of Green HRM and Green Human Capital Through Green Construction Practices and Green Work Climate
(2026-04-01)
Ahmed, Mukhtar
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Chatpattananan, Vuttichai
In response to increasing demand for environmental sustainability, construction firms are progressively adopting green-oriented management approaches to enhance long-term project success. This study examines the relationship between Green Human Resource Management (GHRM), Green Human Capital (GHC) and Sustainable Project Success (SPS) within the construction sector, with Green Work Climate (GWC) as moderator and Green Construction Practices (GCP) as mediator. Drawing upon the Resource-Based View (RBV), Natural Resource-Based View (NRBV), and Ability-Motivation-Opportunity (AMO) theory, the study explains how green human competencies and HR systems are associated with project sustainability. Data were collected from 436 construction professionals in Bangkok, Thailand, through online questionnaires, and analyzed using SmartPLS 4 and Structural Equation Modeling (SEM) analysis. The findings indicate that GHRM is positively associated with SPS, while GHC demonstrates an indirect relationship with SPS through GCP. The moderating effect of GHC was not supported. These results contribute to sustainable construction management literature by clarifying the mechanisms through which green human resources are converted to sustainability, offering practical implications for construction firms seeking to institutionalize sustainability through structured HR policies and operational practices.
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Analysis of Key Factors of Cost Overrun in Construction Projects Based on Structural Equation Modeling
(2025-03-01)
Dong, Sizi
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Ahmed, Mukhtar
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Chatpattananan, Vuttichai
Cost overruns are prevalent in global construction industries, propelled by the swift expansion of the construction sector. To tackle this difficulty, it is essential to comprehend the primary elements leading to these overruns. This research examines the correlation between systematic elements affecting construction costs via a literature review, expert interviews, exploratory factor analysis (EFA), and structural equation modeling (SEM). A theoretical framework analyzes contract management, resource distribution, and external environmental factors affecting cost overruns. Twenty-four criteria were selected via literature review and expert consultation, and data from 212 questionnaires were analyzed. The results identify 22 critical elements classified into project management, resources, supply chain, and external and environmental influences. Project management and resources, together with supply chain, exerted the most significant influence. SEM study indicates that management inadequacies intensify resource problems, whereas proficient internal management alleviates external difficulties. This research offers practical recommendations for mitigating budget excesses and enhancing project cost-effectiveness.
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The Behavior of Mechanically Stabilized Earth Walls under the Influence of Dynamic Train Loads
(2024-09-01)
Chaiyaput, Salisa
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Chatpattananan, Vuttichai
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Sukchaisit, Ochakkraphat
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Nghia, Nguyen Trong
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Borana, Lalit
The utilization of a mechanically stabilized earth wall (MSE wall) is prevalent due to its stability and cost-effectiveness compared to conventional earthwork construction methods. In addition, the railway transportation infrastructure has played a vital role in connecting Thailand's numerous regions. The behavior of a 6-m-high MSE wall constructed on a hard ground foundation, which was reinforced with high-density polyethylene on one side and a metallic strip on the other side, was studied in this research. The purpose of this MSE wall is to support the railway structure under dynamic train loads at 100, 150, and 200 km/h. The three-dimensional finite-element method was used to simulate and investigate the behavior of the MSE wall in terms of lateral displacement, settlement, and strain of reinforcement materials. The findings of the study demonstrate that there is a positive correlation between train speed and both lateral displacement and settlement. This relationship is most pronounced at the top of the MSE wall, which is primarily attributable to the influence of surface waves. The MSE wall's behavior under the influence of dynamic train loads was most prominently displayed by the surface waves, which were a curved wavefront at 150 km/h and a Mach cone at 200 km/h. The settlement profile increased when the speed of dynamic train loads increased. The impact of velocity fluctuations on the strain of the reinforcement material was insignificant. Due to the hard ground foundation, the behavior of the MSE wall on both types of reinforcement materials exhibited similar tendencies. Moreover, it was observed that the maximum tension lines closely follow the bilinear coherent gravity method with a standard distance of 0.3H from the facing, where H represents the equivalent height of the MSE wall.
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A Damage Index for Assessing Seismic-Resistant Designs of Masonry Wall Buildings Reinforced with X-Bracing Concrete Frames
(2023-12-01)
Chonratana, Yossakorn
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Chatpattananan, Vuttichai
In this paper, a suitable damage index is demonstrated to assess the seismic-resistant design of masonry wall buildings reinforced with double x-bracing concrete frames. As a criterion indicative of the damage level that might occur after an earthquake, the damage index can be calculated by using analytic results, by using the Park–Ang formula on masonry wall buildings reinforced with concrete structures, and by adjusting the index values in accordance with the results of the analysed models. The data used in this study are collected from the results of four-storey concrete structures with masonry walls under cyclical lateral forces. To simulate the masonry walls’ structural behaviours for damage assessment, x-bracings placed as crosses on each bracing are used to support the compressive strength. Then, the analysis results are used to assess the damage that occurs to the masonry wall building structure by considering deformation and energy decay; additionally, a suitable damage index is calculated for each damage level. The damage index can be considered in the seismic-resistant design of masonry walls reinforced with x-bracing concrete frames.
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The Seismic Resistance Analysis of Frame Structures and Wall Structures Using Ferrocement and Expanded Metal
(2023-04-01)
Chonratana, Yossakorn
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Chatpattananan, Vuttichai
This article presents a study of the use of ferrocement and expanded metal in the columns, beams, and walls of a reinforced concrete building structure to increase its seismic resistance. This study focused on a concrete building with three stories, located in Thailand. In the design of the reinforcement structure, a calculation and analysis of seismic resistance were conducted in a comparison of the original concrete building structure with the reinforced concrete building structure using the nonlinear static force method (pushover analysis method). The results showed that the seismic resistance of the reinforced concrete building structure was higher than the design value (DPT), with different seismic resistance values for the reinforced frames, columns, and walls of approximately 14%, 81%, and 19%. In particular, it had increased stiffness values for the frames, columns, and walls and increased ductility values for the walls. Moreover, the seismic resistance values originating from the reinforcement were significantly higher than those of the concrete building structure. Therefore, reinforcement should be applied to all concrete building structures with the implementation of the damage index, ensuring that it is reduced to the allowable level.
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Exploring Factors Affecting Consumer Behavioral Intentions toward Online Food Ordering in Thailand
(2022-07-01)
Inthong, Chidchanok
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Champahom, Thanapong
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Jomnonkwao, Sajjakaj
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Chatpattananan, Vuttichai
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Ratanavaraha, Vatanavongs
Due to the COVID-19 epidemic, ordering food online has become very popular. This study used a structural equation model to analyze the indicators that influence the decision to order food through a food-delivery platform. The theory of planned behavior and the technology acceptance model were both used, along with a new factor, the task–technology fit (TTF) model, to study platform suitability. Data were collected using a questionnaire given to a group of 1320 consumers. The results showed that attitudes toward on-line delivery most significantly affected the behavioral intentions of the consumers, followed by subjective norms. Among attitudes, perceived ease of use was the most significant, followed by perceived usefulness and trust. The study’s results revealed that TTF had the most significant impact on perceived ease of use, followed by perceived usefulness. This means that, if a food-ordering platform is deemed appropriate, consumers will continue to use it, and business sustainability will be enhanced.
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DESIGNING A TRAPEZOIDAL MODULAR BLOCK WALL WITH NONLINEAR OPTIMIZATION
(2022-02-01)
Chatpattananan, Vuttichai
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Prayongphan, Somchai
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Kongsomboon, Thanadol
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Ratanavaraha, Vatanavongs
A rectangular wall is better in terms of stability and ease of calculation than a trapezoidal wall. However, a trapezoidal wall is sometimes inevitable such as a retaining wall construction near rockface. FHWA provides simplified rules to design a trapezoidal wall. However, FHWA does not give an example to follow, and the rules need trial and error to implement. BS8006 gives an exact dimension of the block heights, but designing still needs to adjust the block widths. A 16-meters high modular block wall project near rock face in Thailand as an example to illustrate a calculation detail in external stability checking follow FHWA simplified rules and BS8006. The illustrations are trapezoidal walls with two zones, three zones, and four zones. Nonlinear optimization models are also used to minimize the wall base length to facilitate the construction instead of jacking the near rock face to build a rectangular wall. Optimization models also help to relax FHWA simplified rules and BS8006 guidelines. Using an optimization model can decrease the base length from 0.7H to 0.6H for a rectangular wall or even 0.5H for a rectangular wall with competent foundation soil. Optimization models can also achieve a base length down to 0.48H with a decrease in the cross-sectional area down to 0.92 for a three zones trapezoidal wall. A simple three zones wall with exact dimensions is also proposed in the competent foundation soil conditions.
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ANALYSIS AND DESIGN ON VARYING THE OFFSETS IN SUPERIMPOSED MECHANICALLY STABILIZED EARTH WALLS
(2022-01-01)
Chatpattananan, Vuttichai
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Ratanavaraha, Vatanavongs
Superimposed MSE walls or multi-tier MSE walls are frequently used due to their eye-pleasing, economical, and safety requirements compared with single-tall MSE walls. Designing an MSE wall requires checking the failure modes in its external stability, internal stability, and global stability. Calculating the external stability and global stability for superimposed walls is well explained. Internal stability, however, is more complicated in calculating the additional vertical stress from the upper wall as an equivalent surcharge on the lower wall with its magnitude determined by the offset distance. By varying offset distances, the additional vertical stress can be categorized into three cases. Case 1 is the maximum additional vertical from the upper wall load when the offset distance is less than HLtan(45-φr /2). The additional vertical stress is zero in case 3 where the offset distance is greater than HLtan(90-φr ). In case 2, the additional vertical stress is a hyperbola function that can be calculated easily using the proposed equation σi = [(HL-z1)/(z2-z1)](γHU+q) in Eq. (7) with geometric and algebraic explanations used through a numerical example in designing a superimposed wall.
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Designing gabion structures under multi-criteria objectives with goal programming
(2021-06-01)
Chatpattananan, Vuttichai
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Kongsomboon, Thanadol
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Ratanavaraha, Vatanavongs
Gabion structure is a set of stacked prefabricated cages filled with rocks. These gabion cages are made of steel wire, polypropylene, polyethylene, or nylon. Constructing these gabion cages usually follows supplier guidelines or governmental agency design standards. Designing this gabion structure, at a minimum, must satisfy many design criteria in passing external stability in sliding, overturning, and bearing capacity of the foundation. Good gabion design requires a balance of the toe bearing stress and heel bearing stress. With this requirement for the design of gabion structures to meet multi-criteria objectives, goal programming, which is a multi-criteria optimization technique, is used in this study. A 3-meter gabion example is used as a based design. Then, mixed integer nonlinear programming is introduced to rearrange a set of varying sized gabion cages to minimize the gabion weight and passing external stability criteria. Two goal programming models are introduced to meet the two design criteria in minimizing gabion weight and balancing the vertical stresses. The two goal programming models give the same optimum solution with the minimum weight of 48 kN/m and eccentricity of 0.002 meter. In contrast, the original example gives the weight of 61.92 kN/m and eccentricity of 0.086 meter.

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