Visualization for Public Involvement (2024)
National Cooperative Highway Research Program (NCHRP) Research Report 632: Visualization for Public Involvement Visualization methods have long been integral to the public involvement process for transportation planning and project development. From well-established methods such as conceptual sketches or photo simulations to the latest immersive technologies, state departments of transportation (DOTs) recognize that visualizations can significantly increase public understanding of a project’s appearance and physical impacts. Emerging methods such as interactive three-dimensional environments, virtual reality, and augmented reality can dramatically enhance public understanding of transportation options and design concepts. 

Virtual Public Involvement: Lessons from the COVID-19 Pandemic (2022)
TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 349:Virtual Public Involvement: Lessons from the COVID-19 Pandemic During the COVID-19 pandemic, transportation agencies' most used public-engagement tools were virtual public meetings, social media, dedicated project websites or webpages, email blasts, and electronic surveys. As the pandemic subsides, virtual and hybrid models continue to provide opportunities and challenges. 

Practices for Online Public Involvement (2019)
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 538: Practices for Online Public Involvement summarizes current practices regarding online public participation strategies being used by state departments of transportation (DOTs), as well as explores the effectiveness of using these strategies and tools. 

Measuring the Effectiveness of Public Involvement in Transportation Planning and Project Development (2019)
TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 905: Measuring the Effectiveness of Public Involvement in Transportation Planning and Project Development provides a field-validated and practitioner-ready toolkit to measure the effectiveness of a transportation agency’s public involvement activities.

Update on the State of the Practice: Public Involvement in the 21st Century (2013)
This paper examines the current state of the practice in public involvement in transportation. Reassessing current practice provides a clean view for identifying the issues and practices that will influence and define public involvement into the future.

Practical Approaches for Involving Traditionally Underserved Populations in Transportation Decisionmaking (2012)
TRB’s National Cooperative Highway Research Program (NCHRP) Report 710: Practical Approaches for Involving Traditionally Underserved Populations in Transportation Decisionmaking highlights tools, techniques, and approaches for identifying and connecting with populations that have traditionally been underserved and underrepresented in transportation decisionmaking. 

A Guidebook for Successful Communication, Cooperation, and Coordination Strategies Between Transportation Agencies and Tribal Communities (2011)
TRB’s National Cooperative Highway Research Program (NCHRP) Report 690: A Guidebook for Successful Communication, Cooperation, and Coordination Strategies Between Transportation Agencies and Tribal Communities includes guidelines designed to help departments of transportation and tribal communities work together to achieve successful transportation projects on tribal lands.

Transit Cooperative Research Program (TCRP) Synthesis 89: Public Participation Strategies for Transit (2011)
TRB’s Transit Cooperative Research Program (TCRP) Synthesis 89: Public Participation Strategies for Transit documents the state-of-the-practice in terms of public participation strategies to inform and engage the public for transit-related activities.

Identification of Results-Oriented Public Involvement Strategies Between Transportation Agencies and Native American Tribal Communities (2010)
TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 171: Identification of Results-Oriented Public Involvement Strategies Between Transportation Agencies and Native American Tribal Communities documents the project that led to development of NCHRP Report 690.

Effective Public Involvement Using Limited Resources (2010)
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 407: Effective Public Involvement Using Limited Resources explores information about staff and agency experiences in the application of successful and cost-effective strategies and implementation techniques used to engage the public in the development of transportation plans and projects. The report also examines unsuccessful strategies.