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Welcome to my homepage. I am an Associate Professor of Geography at the University of Michigan-Flint. I'm also a Faculty Affiliate at the University of Michigan Data Science Institute (MIDAS) and Fellow at the Center for Urban Design and Mental Health (UK)

My research is centered on examining accessibility, urban design, and public health outcomes using innovative geospatial science methods and empirical models. My work within these areas has been expansive, spanning approaches and methods such as; active transportation modeling; naturalistic assessments of cycling stress; Agent Based Modeling (ABM) of bicycling movement potentials; travel-mode sentiment; travel-demand modeling; intersection of crime and public health; urban infrastructure resiliency; qualitative analysis of micro-mobility use; intermodal travel potentials in a university environment; spatial modeling of food insecurity. 

I also have a breadth of practical experience from my time working in private industry, government sectors, and non-profit organizations as a GIS analyst, planner, and consultant. These experiences inform my teaching and complement my research agenda.   

Read more about my research on Google Scholar, ORCiD, or ResearchGate

LATEST NEWS

New publication in Urban Geography: "Skateboarder and scooter-rider perceptions of the urban environment: a qualitative analysis of user-generated content"
 
Working with Dr. Lorne Platt from California State University - L.A., we examined how personal mobility devices (aka, scooters and skateboards) can be promoted using crowdsourced data and a robust theoretical framework. Not surprisingly, our results suggest that many riders encountered rough surfaces and difficult
transitions. The overall findings tell us that cities
need to acknowledge this evidence and apply this toward long-term efforts set on facilitating these active mobilities in an urban setting. The author's version of the article can be found here


 
New publication in Sustainability: "Predicting bicycle-on-board transit choice in a university environment"
Why are the bicycle racks on buses always empty? In a collaborative study, we sought to identify which personal and neighborhood factors influence bicycle-on-board (BoB) transit mode choice among a university sample in Flint, Michigan. While a largely unpopular transportation mode, we found that access to parks, bicycle facilities, and high land-use mix may increase the probability of using BoB modes when traveling to a university. The full-length article can be found here.  
Collaborative grant recently awarded to study e-bicycling in Detroit:

I've recently received funding to examine how to promote e-bicycling in the Detroit metro area. Creating sustainable and “smart” cities is promoted by planners and researchers recently as a way to increase accessibility, mobility, public health, quality-of-life, and environmental value. Widespread interest in implementing electrified micromobility modes, such as electric bicycles (e-bikes), is integral to this and may serve to solve current issues such as the “first/last mile” problem and transportation inequities. Working with partners from several universities and local bicycling organizations, we will explore important issues such as: safety, trip substitution, equity, and wayfinding success. this using two lenses: safety and enjoyment. This information will be used to comprehend the possibility of elevating this mode share to meet sustainability goals.  If you're interested in finding out more, please contact me at grybar@umich.edu 

CONNECT WITH ME

Affliations

Address

Find me

University of Michigan-Flint

Department of Geography, Planning, and Environment

University of Michigan, Michigan Institute of Data Sciences (MIDAS) 

Centre for Urban Design and Mental Health

 

University of Michigan-Flint

Department of Geography, Planning and Environment 

516 Murchie Science Bldg

Flint, Michigan 48502

t: 810-762-3355

grybar@umich.edu