TRB’s second Strategic Highway Research Program (SHRP 2) S2-C09-RW-2: The Practitioner’s Guide to Incorporating Greenhouse Gas Emissions into the Collaborative Decision-Making Framework presents information on how greenhouse gas (GHG) emissions can be incorporated into transportation planning when using different types of collaborative decision-making approaches.

Four decision contexts—long-range planning, programming, corridor planning, and National Environmental Protection Act (NEPA) permitting—are described along with suggested questions that analysts should be asking if they are interested in incorporating GHG emissions into key decision points in each context.

The report is available in electronic format only. 

A web-based technical framework, Integrating Greenhouse Gas into Transportation Planning, which was developed as part of SHRP 2 Capacity Project C09, provides information on the models, data sources, and methods that can be used to conduct GHG emissions analysis. The framework is part of the Transportation for Communities: Advancing Projects through Partnerships (TCAPP) website. TCAPP is organized around decision points in the planning, programming, environmental review, and permitting processes.

SHRP 2 Capacity Project C09 also produced a Final Capacity Report that identifies background information on the role of GHG emissions in the transportation sector, factors influencing the future of emissions, GHG emissions reduction strategies, as well as information on cost effectiveness and feasibility of these reduction strategies.