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Bongwook Koo

Yonsei University · Environmental Science

About the Lab

Professor Bongwook Koo's research lab specializes in urban environmental data science, focusing on the intersection of urban form, environmental equity, and human well-being. The lab employs advanced technologies such as computer vision, audio sensing, and big data analytics to quantify street-level urban design factors and their impacts on walkability, perceived safety, and environmental justice. Key research directions include the development of scalable methods for measuring urban environments using remote sensing and sensor data, and applying machine learning to support equitable and sustainable urban planning. The lab emphasizes data-driven approaches to address urban challenges such as environmental inequity and pedestrian infrastructure planning.

urban sensingenvironmental equitywalkabilitycomputer visionurban planning

Research Overview

Papers
34
Total Citations
379
Papers (5y)
30
Primary Field
Environmental Science

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
30total
2021
2023
2024
2025
2026
Citations per year (5y)
340total
20212023202420252026

Selected Papers

15
1
Article|200 citations·2021
How are Neighborhood and Street-Level Walkability Factors Associated with Walking Behaviors? A Big Data Approach Using Street View Images
Bon Woo Koo, Subhrajit Guhathakurta, Nisha Botchwey
SJR Q1Environment and Behavior

The built environment characteristics associated with walkability range from neighborhood-level urban form factors to street-level urban design factors. However, many existing walkability indices are based on neighborhood-level factors and lack consideration for street-level factors. Arguably, this omission is due to the lack of a scalable way to measure them. This paper uses computer vision to quantify street-level factors from street view images in Atlanta, Georgia, USA. Correlation analysis s

TransportationSocial Sciences
2
Article|48 citations·2023
Can good microscale pedestrian streetscapes enhance the benefits of macroscale accessible urban form? An automated audit approach using Google street view images
Bon Woo Koo, Subhrajit Guhathakurta, Nisha Botchwey, J. Aaron Hipp
SJR Q1Landscape and Urban Planning
TransportationSocial Sciences
3
Article|37 citations·2019
Environmental Equity and Spatiotemporal Patterns of Urban Tree Canopy in Atlanta
Bon Woo Koo, Nico Boyd, Nisha Botchwey, Subhrajit Guhathakurta
SJR Q1Journal of Planning Education and Research

While previous studies in environmental equity found positive relationships between tree canopy and socioeconomic/demographic status of neighborhoods, few examined how changes in tree canopy are associated with changes in socioeconomic/demographic status. This study confirms that the relationship between them in Atlanta is changing and the hypothesis of inequitable distribution of tree canopy concerning demographic attributes cannot be fully supported beyond 2000. In addition, the proportion of

Health, Toxicology and MutagenesisEnvironmental Science
4
Article|37 citations·2021
Development and validation of automated microscale walkability audit method
Bon Woo Koo, Subhrajit Guhathakurta, Nisha Botchwey
SJR Q1Health & Place
TransportationSocial Sciences
5
Article|22 citations·2023
Streetscapes as part of servicescapes: Can walkable streetscapes make local businesses more attractive?
Bon Woo Koo, Uijeong Hwang, Subhrajit Guhathakurta
SJR Q1Computers Environment and Urban Systems
MarketingBusiness, Management and Accounting
6
Article|13 citations·2024
Urban Trees and Perceived Neighborhood Safety: Neighborhood Upkeep Matters
Sungmin Lee, Youjung Kim, Bon Woo Koo
SJR Q1Environment and Behavior

The perception of safety significantly influences choices in outdoor activities, profoundly impacting overall well-being. While previous studies have highlighted urban trees’ potential to reduce crime rates, the link between urban trees and perceived safety remains uncertain. This study investigates the relationship between urban trees and safety perception in Austin, Texas, USA, with a specific focus on the moderating role of neighborhood cleanliness and environmental justice considerations. Us

Health, Toxicology and MutagenesisEnvironmental Science
7
Article|10 citations·2023
Associations between tree characteristics and street crime: A case study in downtown Austin, TX
Sungmin Lee, Bon Woo Koo, Youjung Kim
SJR Q1Urban forestry & urban greening
Health, Toxicology and MutagenesisEnvironmental Science
8
Article|4 citations·2024
Understanding pedestrian movement using urban sensing technologies: the promise of audio-based sensors
Chaeyeon Han, Pavan Seshadri, Yiwei Ding, Noah Posner, Bon Woo Koo, Animesh Agrawal, Alexander Lerch, Subhrajit Guhathakurta
Urban InformaticsOA

Abstract While various sensors have been deployed to monitor vehicular flows, sensing pedestrian movement is still nascent. Yet walking is a significant mode of travel in many cities, especially those in Europe, Africa, and Asia. Understanding pedestrian volumes and flows is essential for designing safer and more attractive pedestrian infrastructure and for controlling periodic overcrowding. This study discusses a new approach to scale up urban sensing of people with the help of novel audio-base

Computer Vision and Pattern RecognitionComputer Science
9
Book Chapter|2 citations·2020
Spatial modelling and forecasting
Subhrajit Guhathakurta, Ge Zhang, Bon Woo Koo
Edward Elgar Publishing eBooks

Spatially explicit data about the physical and natural environment are becoming ubiquitous with the growing number of air/space-borne and terrestrial sensors. While this growing volume of data has transformed the operations of various sectors in both private and public domains, such as agriculture, natural resource management, transportation and retail services, the impact on urban spatial planning has been minimal. This chapter discusses the evolving approaches to spatial modelling and forecast

Global and Planetary ChangeEnvironmental Science
10
Preprint|2 citations·2023
How are Neighborhood and Street-Level Walkability Factors Associated with Walking Behaviors? A Big Data Approach Using Street View Images
Bon Woo Koo, Subhrajit Guhathakurta, Nisha Botchwey
OA

<p>The built environment characteristics associated with walkability range from neighborhood-level urban form factors to street-level urban design factors. However, many existing walkability indices are based on neighborhood-level factors and lack consideration for street-level factors. Arguably, this omission is due to the lack of a scalable way to measure them. This paper uses computer vision to quantify street-level factors from street view images in Atlanta, Georgia, USA. Correlation a

TransportationSocial Sciences
11
Article|2 citations·2025
Mental health facility visits before and after the outbreak of COVID-19: The role of walkable built environment
Chaeyeon Han, Bon Woo Koo, Uijeong Hwang
SJR Q1Journal of Transport & HealthOA

Introduction Before the COVID-19 pandemic, walkability was linked to improved mental health . However, walkable areas can be more vulnerable to outbreaks of infectious diseases due to increased interaction and proximity between individuals, potentially leading to adverse effects on mental health. Whether walkability maintains its positive association with better mental health during the pandemic remains unclear, especially given mixed findings on whether walkability increases COVID-19 cases. Met

TransportationSocial Sciences
12
Article|1 citations·2026
Does weather matter? Examining measurement bias in street view image-based urban perception assessments
Dongwon Ki, S. W. Ricky Lee, Chaeyeon Han, Youngchang Kim, Bon Woo Koo, Uijeong Hwang
SJR Q1Computers Environment and Urban Systems
Health, Toxicology and MutagenesisEnvironmental Science
13
Book Chapter|1 citations·2021
Application for Locational Intelligence and Geospatial Navigation (ALIGN): Smart Navigation Tool for Generating Routes That Meet Individual Preferences
Ge Zhang, Subhrajit Guhathakurta, Jon Sanford, Bon Woo Koo
˜The œurban book series
TransportationSocial Sciences
14
Article|0 citations·2020
US-China Trade Disputes and the Shake of the Global Value Chain-Intellectual Property System
Bon Woo Koo
SJR Q1Economy and SocietyOA

미국과 중국 사이의 무역분쟁은 늦어도 2008년 지구적 금융위기 이후 진행되고 있는 세계질서 균열 과정의 일부다. 표면적으로 보자면 관세인상과 양국 간의 현실주의적 패권경쟁이 중요한 것으로 보이지만, 그 이면에는 지구적 가치사슬의 약화와 지적재산권 체제의 동요라는 배경이 무역분쟁의 전개와 쟁점을 강하게 규정하고 있다. 지구적 금융위기 이후 지구적 가치사슬을 매개로 한 다양한 기업 간 연결망은 서로에게 상호연관의 부담을 가중시켰고 이 연결망으로부터 참여자 이탈을 야기하고 있다. 지적재산권은 가치사슬의 기업 간 관계를 규제하는 핵심적 매개체였으나 이제 그 보호의 범위와 운영의 규칙에 대한 갈등에 노출되어 있다. 지적재산권 체제는 그것이 만들어내는 사회적 비용과 이 재산권을 획득함으로써 가질 수 있는 지구적 경쟁력 사이에서 표류하고 있다. 이렇게 가치사슬과 지적재산권의 동요라는 거대한 배경 속에서 놓이면서, 미국과 중국은 불확실성을 극복하기 위한 필수적인 선택이 상대방에게 부담을 가중시키

Management of Technology and InnovationBusiness, Management and Accounting
15
Preprint|0 citations·2023
The Influence of Surrounding Ground Floor Facilities on the Use of Privately Owned Public Spaces in Seoul
Bon Woo Koo, Yu‐Mi Lee
OA

<p>Seoul’s privately owned public space (POPS) initiative has achieved quantitative success since its introduction in the early 1990s. However, POPSs have been frequently criticized for failing to correspond with the urban context in which they are created and are thus often underused. Association between surrounding urban context and the use of POPS is acknowledged, but specific elements of the urban context associated with the use of POPS and the extent of association are unclear. In thi

Management, Monitoring, Policy and LawEnvironmental Science

Research Areas

TransportationHealth, Toxicology and MutagenesisGlobal and Planetary ChangeAutomotive EngineeringSafety, Risk, Reliability and QualityComputer Vision and Pattern Recognition

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