Metropolitan Transportation Commission (MTC)
I-80 Design Alternatives Assessment (DAA)
Project
As a member of a project team, ETG assisted MTC on the Interstate 80 (I-80) Design Alternative Assessment (DAA), a Bay Bridge Forward project, to address traffic congestion for the I-80 corridor in Alameda and Contra Costa counties between the Carquinez Bridge and the San Francisco-Oakland Bay Bridge.
The assessment recommended four operational strategies to advance through to the first phase of the project delivery pipeline.
Our Work
As part of a team, ETG provided travel demand modeling support for the I-80 Design Alternatives Assessment (DAA) Project. ETG applied MTC’s activity-based Travel Model One model to generate traffic forecasts for various alternatives in the 2026 opening year. The project alternatives analyzed include:
- Mix of Single & Dual Express Lanes
- Access Restrictions
- Single Express Lanes
- Dual Express Lanes
ETG then generated subarea trip tables for the corridor to support subsequent dynamic traffic assignment (DTA) analyses of all project alternatives, including hours of operations.