4.6 Article

The Effect of Distance Intervals on Walking Likelihood in Different Trip Purposes

Journal

SUSTAINABILITY
Volume 14, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/su14063406

Keywords

transportation; walking distance; mandatory trips; discretionary trips; built environment; binary logit model

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Increasing private car ownership and car dependency in developing countries have led to a low share of walking as an active mode, causing congestion, air pollution, and health problems. This study investigates the impacts of socio-economic, travel-related, and built environment variables on walking likelihood and respondents' sensitivity to walking distance. The findings suggest that people are more likely to choose walking for mandatory trips compared to discretionary trips, and age has an influence on walking behavior.
Increasing private car ownership and car dependency has led to a low share of walking as an active mode as well as congestion, air pollution, and health problems in developing countries. This paper aims to identify and compare the impacts of a selection of socio-economic, travel-related, and built environment variables on walking likelihood and respondents' sensitivity to the walking distance, both for discretionary and mandatory trips. The analysis drew its origin from 14,463 responses acquired through an extensive travel survey conducted in the city of Qazvin, Iran. The estimated binary logit coefficients show people's heterogeneity in the walking behavior for discretionary and mandatory trips. The results report a higher likelihood of walking on mandatory trips at almost all distances than the discretionary ones. Furthermore, investigating individual heterogeneity in different trip distances reveals that people aged less than 14 are more likely to choose walking on mandatory trips longer than 2400 m. Besides, those aged 25-44 years old or above 65 have less tendency to choose walking on mandatory trips with distances of 2000-2400 m and 800-1200 m, respectively. These findings are almost different on discretionary trips; compared to other age groups, people aged 15-24 years are less likely to choose walking on discretionary trips with a distance of 800-1200 m. Moreover, in trip distances of 1200-1600 m, the elderlies have a greater tendency to choose walking compared to other age groups. Some implications for more sustainable mobility in human-oriented urban environments are also presented and critically discussed.

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