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<p>Traditional approaches often treat elderly users as a homogeneous group, leading to suboptimal transportation service delivery. This research investigates the behavioral intentions of elderly high-speed rail (HSR) users by comparing young-old (60–69 years) and middle-old (70–79 years) populations in Thailand. An integrated theoretical framework combining the Technology Acceptance Model, Theory of Planned Behavior, Unified Theory of Acceptance and Use of Technology, and Innovation Diffusion Theory was employed. Data were collected from 2944 elderly respondents across Thailand’s four major regions. Measurement invariance testing and structural equation modeling validated 23 hypotheses examining relationships between psychological, technical, and social factors affecting HSR adoption. Results reveal distinct adoption patterns between age groups. Young-old users show stronger influences from performance expectancy and innovativeness, while middle-old users demonstrate greater sensitivity to facilitating conditions and social influences. Attitude toward HSR emerges as the strongest predictor of behavioral intentions across both groups, though the underlying formation mechanisms differ substantially. The findings support a dual-track service strategy: for young-old users, prioritizing digital platforms, real-time information systems, and performance-oriented marketing; for middle-old users, establishing dedicated assistance services, simplified boarding procedures, barrier-free station designs, and community-based travel companion programs. These differentiated approaches can enhance HSR accessibility among diverse elderly populations, particularly crucial for countries experiencing rapid population aging alongside transportation infrastructure development.</p>

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Analysis of elderly behavioral intentions toward high-speed rail adoption in Thailand: a comparative study of young-old and middle-old groups

  • 期刊论文

  • 发表日期：

    2026年3月17日

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  • Dissakoon Chonsalasin,
  • Thanapong Champahom,
  • Adisorn Dangbut,
  • Fareeda Watcharamaisakul,
  • Sajjakaj Jomnonkwao,
  • Vatanavongs Ratanavaraha

摘要

Traditional approaches often treat elderly users as a homogeneous group, leading to suboptimal transportation service delivery. This research investigates the behavioral intentions of elderly high-speed rail (HSR) users by comparing young-old (60–69 years) and middle-old (70–79 years) populations in Thailand. An integrated theoretical framework combining the Technology Acceptance Model, Theory of Planned Behavior, Unified Theory of Acceptance and Use of Technology, and Innovation Diffusion Theory was employed. Data were collected from 2944 elderly respondents across Thailand’s four major regions. Measurement invariance testing and structural equation modeling validated 23 hypotheses examining relationships between psychological, technical, and social factors affecting HSR adoption. Results reveal distinct adoption patterns between age groups. Young-old users show stronger influences from performance expectancy and innovativeness, while middle-old users demonstrate greater sensitivity to facilitating conditions and social influences. Attitude toward HSR emerges as the strongest predictor of behavioral intentions across both groups, though the underlying formation mechanisms differ substantially. The findings support a dual-track service strategy: for young-old users, prioritizing digital platforms, real-time information systems, and performance-oriented marketing; for middle-old users, establishing dedicated assistance services, simplified boarding procedures, barrier-free station designs, and community-based travel companion programs. These differentiated approaches can enhance HSR accessibility among diverse elderly populations, particularly crucial for countries experiencing rapid population aging alongside transportation infrastructure development.