Zachary has ten years of transportation research experience and is responsible for a diverse range of projects. In his role with The Texas A&M Transportation Institute's Transit Mobility Program he contributes to work in the areas of equity, justice, accessibility, shared and active modes, public health, innovative finance, and urban design. Zachary is the Transit Mobility program’s lead investigator for research on transportation equity and access with a focus on projects that seek to preserve and improve access to the transportation network for marginalized and underserved communities. Since 2016 he has led seven such projects including an assessment the equity implications of new and emerging fare payment technologies, three projects to conduct equity analyses for transit access, and two projects that resulted in unique standalone equity analysis training programs/curriculums. In July 2020 he initiated a new project, as PI, to investigate opportunities to enhance state-level methods for assessing and improving transportation equity and accessibility for all users. Additionally, he is a key researcher on Transit Cooperative Research Program project B-47 investigating the impacts of transformational mobility technologies on underserved communities.

Before joining the Transit Mobility team at TTI, Zachary held a 6-month Transportation Finance Research Fellowship with the Southern California chapter of the Safe Routes to School National Partnership. Prior to his fellowship, he worked as a research assistant for the METRANS Transportation Center at The University of Southern California’s Price School of Public Policy.