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http://dx.doi.org/10.12815/kits.2015.14.4.062

A Study on the Key Factors Affecting Travel Time Budget for Elderly Pedestrians  

Choi, Sung-taek (Hongik Univ.)
Kim, Su-jae (Hongik Univ.)
Jang, Jin-young (Hongik Univ.)
Lee, Hyang-sook (Incheon National Univ.)
Choo, Sang-ho (Hongik Univ.)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.14, no.4, 2015 , pp. 62-72 More about this Journal
Abstract
Nowadays the issue of aging society has received considerable critical attention, especially in transportation planning and demand forecasting. This study identified the factors related to travel time budget for elderly by purpose using seemingly unrelated regression model (SUR model). The SUR model is suitable when error terms of each equation are assumed to be correlated across the equations in terms of travel time budget which is constant in 2 hours per day commonly. The results showed that elderly's travel time budget was affected by individual, household, urban facility and transportation service. The leisure travel comprised a large proportion of total travel time and had a positive relationship with elderly, sports, religious facilities. Moreover, the elderly who had low income or unemployed person had low frequency of social activity such as leisure, shopping and business. This study can provide a comprehensive implications of forecasting the future travel demand and analyzing the travel behavior.
Keywords
Elderly; Travel behavior; Travel time budget; Seemingly unrelated regression model; travel time by purpose;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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