Meaningful community engagement is essential to ensuring that transit investments reflect community needs and incorporate diverse perspectives, giving residents a voice in decisions that affect their lives. These benefits are important in their own right, regardless of whether engagement accelerates or delays project delivery.

But community engagement can require considerable resources and raise concerns that extend project timelines. This raises an important question: Can meaningful community engagement also help transit agencies deliver projects more efficiently?

Between April and July 2026, we interviewed 30 transit stakeholders in six cities about how they think community engagement affected the efficiency of recent transit projects they worked on, including new light rail, heavy rail, and bus rapid transit (BRT) routes. Interviewees included transit agency leadership, planning staff, community representatives, and project consultants.

Our research suggests that when done well, community engagement can help projects move forward. In fact, efforts to limit public participation in the interest of moving projects forward can backfire, potentially strengthening opposition and allowing concerns to emerge later, when they may be more difficult and costly to address.

Interviewees emphasized two approaches in particular: engaging communities early when consequential decisions can still be shaped, and clearly communicating what residents can and cannot influence. Together, these practices can help transit agencies address concerns while maintaining momentum toward project delivery.

Building legitimacy and trust early on can mitigate future opposition

Our interviews highlighted that engaging the community early, when their input can still shape consequential decisions, can help establish trust with different stakeholder groups. Transit agencies can build this trust by demonstrating how community feedback informs project decisions and incorporating that feedback into project plans when possible. This can also limit the likelihood of projects being delayed, canceled, or subject to significant changes when the project is already underway.

Though transit agencies and planners can’t expect to gain unanimous support for projects, they can take steps to build legitimacy and earn trust. Leaders can use stakeholder mapping to identify residents and groups in the community who are likely to be affected by the project. This should include residents and organizations that support the project, those with concerns, and those who oppose it. As one interviewee in Boston explained, it’s valuable to “build friendships in the right place[s],” including those who may be skeptical of or opposed to the project.

One potential pitfall of stakeholder mapping is that it could make existing imbalances in representation worse by prioritizing relationships with residents that are already the most involved. As such, planners should ensure stakeholder mapping processes include efforts to identify and engage with members of the community who hold less political power, as well as those who will be most affected by a project.

Additionally, agencies can build legitimacy and conduct effective outreach through partnerships with community-based organizations (CBOs). In Portland,  the Tri-County Metropolitan Transportation District of Oregon’s (TriMet’s) FX-2 Division BRT project had a steering committee that included leaders from CBOs. TriMet staff learned that gentrification was a major concern for the residents the CBOs served. The partnership also allowed TriMet to communicate about the project through CBOs, who were trusted messengers in their communities. Ultimately, TriMet worked with other local agencies to provide stable housing along the BRT corridor so residents could remain in place.

Finally, agencies can deliberately engage the business community to address common concerns that construction can limit parking, foot traffic, and storefront access.

Transit agency staff at Valley Metro in Phoenix heard these concerns from small businesses early during planning for the South Central light rail extension project. Knowing construction would affect these small businesses, Valley Metro created an assistance program that supported businesses on the route.

Oklahoma City placed a similar emphasis on engaging businesses as part of the city’s streetcar project. They hired a community engagement liaison who worked to meet with every business and property owner along the route, gave weekly construction updates, and worked to address manageable concerns.

Identifying the range of community attitudes toward the project in the planning phase and taking transparent steps to demonstrate that staff are listening to the community can help transit agencies address stakeholders’ preferences and concerns early. Doing so can establish trust between agencies and the public and reduce the likelihood of unresolved concerns emerging after major decisions have been finalized or after construction has begun, which can lead to greater delays and increased costs.

Transit leaders should be clear about what communities can influence, and when decisions are final

Transit agencies may be inclined to create a flexible timeline for engagement to prepare for shifting project priorities or to ensure all residents have an opportunity to participate. Yet by keeping the window for engagement open for lengthy, undefined periods, community engagement can feel circular and unproductive, as residents are faced with more questions than tangible decisions.

To avoid rehashing the same issues, transit planners should be clear about what elements of the project are open to community input, and how those elements change as project plans become more concrete.

In Omaha, Nebraska, staff said that they “almost taught [the community] transit planning” during engagement sessions for a BRT project so that they could understand and appreciate the costs and trade-offs associated with the process. Before bringing up an issue to the community, they suggest transit leaders ask themselves: “What are you asking, why are you asking it, and what are you going to do with that answer?”

Agencies can undermine public trust by soliciting feedback on decisions they have already made. Instead, transit agency staff and planners can clarify the core project components that are not up for debate (or have already been resolved after previous debate), while emphasizing that they value input on other aspects. A stakeholder involved in multiple transit projects in Los Angeles suggested that planners should approach engagement as an opportunity to understand how the community would like a project done, rather than if they want it or not.

Efficiently delivering projects that reflect community needs

Our findings suggest that meaningful community engagement and efficient transit delivery need not be competing priorities. By engaging communities early, responding to their concerns, and communicating transparently about project decisions, transit agencies can improve the planning process, help projects move forward, and even limit project costs.

To identify more strategies US transit planners can use to deliver projects on time, on budget, and with meaningful community input, our research will explore community engagement practices in other countries.