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TERI Database

Research Idea Details

ID

431

Title

Evaluate Area-wide Cumulative Effects Assessment (ACEA) Methodology as a Mechanism for Cumulative Impacts Analysis of Regional Transportation Plans

Focus Area

Indirect Effects/Cumulative Impacts

Status

Archived

Cost

Unknown

Timeframe

Unknown

Research Idea Scope

TERI Database Administrator Notes:  Not recommended at present time by 2009 Environmental Process Subcommittee.  Funded as NCHRP 25-25 54 "Evaluate Colorado's Area-wide Cumulative Effects Assessment (ACEA) Methodology as a Mechanism for Cumulative Impacts Analysis of Regional Transportation Plans"

Departments of Transportation (DOTs) are confronted with the challenge of performing meaningful and efficient environmental analysis, acceptable to the resource agencies involved, so that environmental information can inform and support decision-making at appropriate points in the transportation process. Within this framework, an area-wide or regional cumulative effects assessment would be designed to define, "the impact on the environment which results from the incremental impact of an action when added to other past, present and reasonably foreseeable future actions regardless of what agency (Federal or non-Federal) or person undertakes such other actions." Colorado has made an initial attempt to address this challenge in its Area-wide Cumulative Effects Assessment (ACEA).   The study has provided several environmental resource metrics that hold the prospect for regional resource assessments similar to an air quality conformity analysis.

This research would be designed to apply those metrics to a regional transportation plan for the purpose of assessing cumulative effects on a regional basis, throughout the country.  Since modeling the transportation plan would include both the current and future network, the assessment of an individual resource would meet the cumulative effects requirements of past, current, and future impacts.

Urgency and Payoff

Suggested By

John Zamurs, SCOE Air Quality Sub-Committee

Posting Date

July 19, 2007

New - items posted in the last 7 days (30 days for TERI)

AASHTO (American Association of State Highway and Transportation Officials)
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