Assessing the role of the built environment and sociodemographic characteristics on walking travel distances in Bogotá

 

Title
Assessing the role of the built environment and sociodemographic characteristics on walking travel distances in Bogotá
AuthorLuis A. Guzman, Javier Peña, Juan Antonio Carrasco
Line(s)Access and Mobility
Year of Publication2020
Journal TitleJournal of Transport Geography
Keywords
Walking, Land-use, Cellular automata, Built environment, Urban planning, Bogotá
Abstract

Planning for more sustainable mobility is an important goal for public authorities worldwide. Setting better conditions for pedestrians and cyclists has been related to many social benefits, such as less pollution and congestion. Local authorities, aware of the relationship between transport and land-use, are adopting planning tools to analyze growth in cities and their impacts using multiple indicators. This paper develops an econometric trip length model that correlates socioeconomic characteristics and built environment conditions with walking travel distances in the city of Bogotá, Colombia. A log-linear regression model was estimated using information for 2015 of Bogotá’s household travel survey, along with data of employment and population by block obtained from official sources. The built environment component of the model serves to evaluate the effect of land-use patterns. A proof of concept was developed using land-use information extracted from a Cellular Automata Land-Use model calibrated for the city. From its results, some factors of the built environment were estimated and two scenarios were tested in this study. One depicts the average walking distance for households surveyed in 2015, and the other takes a simulation of land-use policy in developing a new urban area as an input. The results indicate that people living in areas were the land-use mix and job/population ratio are low, tend to have longer walking distances, suggesting the need to implement special policies that reallocate some activities and encourage higher land-use mix in the urban periphery where low-income households tend to be located. The proposed method can identify the impact of land-use policies in the distances traveled by walking, facilitating the impact assessment of land-use regulations.

Doihttps://doi.org/10.1016/j.jtrangeo.2020.102844
Corresponding AuthorJuan Antonio Carrasco j.carrasco@udec.cl