TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-C01-RR-1: Framework for Collaborative Decision Making on Additions to Highway Capacity describes a framework—including for long-range planning, corridor planning, project programming, environmental review, and environmental permitting—that supports collaborative business practices for reaching decisions on adding highway capacity when necessary.
The framework delivers case studies and supportive materials in a searchable, web-based, format called Transportation for Communities—Advancing Projects through Partnerships (TCAPP). TCAPP is organized around decision points in the planning, programming, environmental review, and permitting processes. TCAPP is now know as PlanWorks.
National Academies of Sciences, Engineering, and Medicine. 2014. Framework for Collaborative Decision Making on Additions to Highway Capacity. Washington, DC: The National Academies Press. https://doi.org/10.17226/22851.
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