Section 1113 of MAP-21 addresses the Congestion Mitigation and Air Quality (CMAQ) program and provides for “optional programmatic eligibility” as follows: (1) IN GENERAL.—At the discretion of a metropolitan…
PROBLEM Historic roads are an intrinsic part of the nation’s heritage, representing different periods and trends in engineering design from the wagon roads that survive in rural areas to early…
Current US DOT guidance specifies 140 to 150 thousand in average daily traffic (ADT) volume as the effective threshold, applicable across the nation, for conducting quantitative assessments of mobile source…
A comprehensive study of the geophysical investigations of cemeteries using case studies (n=50) and interviews with experience practitioners to determine best practices for maximizing the effectiveness of these investigations. Analysis…
In 2012, a template for NEPA/conformity documentation for project-level air quality analyses was completed as NCHRP 25-25 (Task 71), (See “Templates for Project Level Analysis Using MOVES, CAL3QHC/R and AERMOD”,…
A study of past road projects that had added capacity and an analysis of induced growth caused by these projects. Determining which projects that added capacity actually induced growth and…
Templates for modeling of various typical transportation project types would be developed in this proposed study. The modeling would be conducted using the latest updates to US EPA models and…
In NEPA analysis that goes on for numerous years for transportation projects, the traffic data is updated with analytical consequences periodically throughout the process. But how often do these expensive…
The development of standard reference cases for modeling various project types and pollutants would benefit state DOTs that are transitioning to the new federal models and guidance for project-level air…
DOTs and other agencies working on transportation-related air quality issues are under increasing financial and environmental constraints. Several of these agencies put forward research ideas and fund research projects in…