NCHRP Impact Report 2019

All 50 states and the District of Columbia have applied research results from TRB's National Cooperative Highway Research Program to policy decisions or used them to introduce or change practice, as a reference source, or for new or additional research.

The NCHRP Impact Report 2019, a follow up to the NCHRP Impact Report 2018, attempts to document and present the outcomes and impacts of the application of NCHRP research results. Containing data and anecdotes compiled from various sources, the report presents an overview of recent NCHRP research results, how the results are disseminated, and the impacts of their application.