The bill proposes an $8 billion investment plan for Massachusetts' transportation infrastructure over the next decade, focusing on enhancing roads, bridges, and public transit systems without increasing taxes. This funding is primarily sourced from Fair Share revenue, generated by a new 4% surtax on income exceeding $1 million, which was approved by voters in November 2022. Key features of the plan include the expansion of the Commonwealth Transportation Fund (CTF) capital program, allocating $550 million annually for various transportation projects, and the introduction of new capital investment priorities aimed at improving state-municipal partnerships, highway infrastructure, and the reliability of the Massachusetts Bay Transportation Authority (MBTA) services.

Additionally, the legislation emphasizes the need for timely investments in transportation infrastructure to enhance safety and reliability. It includes a significant increase in Chapter 90 funding, proposing $300 million annually over five years, with a focus on small and rural communities. New programs such as the Community Culvert Grant Program, which will receive $120 million over five years, and the Rail Reliability Program, aimed at upgrading the MBTA transit system, are also introduced. The bill outlines specific allocations for cities and towns, ensuring that critical infrastructure improvements are made efficiently and effectively, addressing maintenance backlogs and enhancing overall travel experiences for residents.