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Psychometric Analysis for Designing Elderly Customized Walking Assist Device

고령자 맞춤형 보행보조서비스 설계를 위한 심리측정 분석

  • 김정화 (아주대학교 TOD기반 도시교통연구센터) ;
  • 장정아 (아주대학교 TOD기반 도시교통연구센터) ;
  • 최기주 (아주대학교 교통시스탬공학과)
  • Received : 2015.12.01
  • Accepted : 2016.01.20
  • Published : 2016.02.28

Abstract

In accordance to rapid aging of population, the accidents of elderly pedestrian and pedestrian safety are becoming very important issues. In terms of smartphone technologies, older people are increasingly looking for useful and friendly ICT services that which can add a value on their silver life. This paper introduced a new IT-based service for elderly walking assist using a smart-phone accompanied by a wearable watch. We describe the functional requirements and a systems architecture model with an interface between a smart-phone and wearable watch. Moreover, this study attempted to verify what services are needed and to estimate elderly pedestrians' WTP (willingness to pay) for IT-based walking assistance device. A total of 189 elderly pedestrians were randomly surveyed through face-to-face interviews. The questionnaire consisted of 3 categories: (1) questions pertaining to socio-economic status, (2) 12 questions regarding walking attitudes, and (3) a question to measure WTP. With this gathered data, factor analysis and path model estimating were conducted. The results identified the elderly user requirements and the use-value of new innovative products for IT-based walking assistance services by two groups(latent elderly and elderly). The modeling result shows that elderly's service preference would increase the possibilities for the commercialization of IT-based walking device with improving their walking safety.

본 연구는 고령자의 스마트폰 이용률 증가에 따라, 고령자가 활용이 가능한 ICT(정보통신기술) 기반의 맞춤형 보행보조기술 개발을 제시하고 이에 대한 사용자 니즈(needs)를 규명하고자 하였다. 맞춤형 보행보조서비스의 형태는 햅틱(진동 및 촉각정보)을 통한 보행안내지원 서비스와 자동 및 셀프 SOS 시스템, 그리고 접근차량의 정보알람 서비스가 포함된 웨어러블(Wearable) 보행안내 보조 장치를 기반으로 한다. 이러한 서비스의 실효성을 검토하기 위하여 189명의 잠재적 고령자와 고령자를 대상으로 그들이 가지는 보행에 관한 심리적 태도 및 각 서비스에 대한 선호도, 그리고 보행안내 보조 장치에 대한 WTP (willingness to pay)를 조사 및 분석하였다. 또한 조사된 변수를 통해 요인분석(Factor analysis)을 수행하였으며 여기서 도출된 요인간 상관관계 파악을 위해 경로모형 (path model)을 추정하였다. 분석된 결과를 통해 연령대에 적합한 보행보조 장치의 맞춤형 서비스의 방향을 제시하였으며, 이는 제품화된 기술에 대한 활용범위를 증대시키고 궁극적으로 고령자의 보행 안전성을 향상시킬 수 있을 것으로 판단된다.

Keywords

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