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COVID-19 streets: Mobility justice and the rapid rollout of pedestrian and bicyclist improvements

This research will explore the ways in which cities approached equity and public engagement in the process of planning and implementing rapid rollout pedestrian and bicycle facilities, and the impacts of those facilities, using a mobility justice framework for evaluation.

PI: Combs | Sponsor: CSCRS | Dates: May 2021 – April 2022

Using a Safe Systems approach to assess traffic impacts of land development

In this research we aim to demonstrate that safety can be achieved in addition to mobility benefits through the nexus between development review practices and Safe Systems, evaluate the shortcomings of existing procedures to demonstrate the gaps Safe Systems can fill, and return to communities to find implementable solutions.

PI: Combs; Dumbaugh | Sponsor: CSCRS | Dates: May 2021 – April 2022

Shifting Streets Global COVID-19 Mobility Dataset

This effort documents, catalogs, and provides a basis for evaluation of pandemic-related changes to the use and management of public roadway space around the world. The primary goal of this work is to build a knowledge base to support research and development of new best practices for adaptive, inclusive, and accessible transportation networks for all people.

PI: Combs | Dates: ongoing

Impacts of CAV-ready infrastructure on vulnerable road users

This research identifies potential physical infrastructure adaptations to accommodate CAV deployment and evaluates their impacts on safety, mobility, and comfort for pedestrians, bicyclists, and other non-car travelers. Outputs include guidance for local interventions to ensure continued and improved mobility for all modes during and after CAV deployment.

PI: Combs; Shay | Sponsor: NCDOT | Dates: March 2020 – March 2023

A Safe Systems approach to understanding walking and bicycling conditions in innovative intersection designs

This mixed-methods research and demonstration project develops and implements a novel approach, grounded in Safe Systems principles, to understanding safety and comfort for those who walk, roll, or cycle through unconventional intersections in North Carolina.

site PI: Combs | Sponsor: STRIDE | Dates: Aug 2020 – May 2022

Completed projects