"Stop Stalling Traffic on the Sunol Grade," Says EDF
The Environmental Defense Fund (EDF) today released a plan for faster congestion relief and increased service on the Altamont Commuter Express (ACE) train in the Bay Area’s most congested travel corridor, the I-680 Sunol Grade. EDF’s plan uses a movable barrier lane, known as a “flexible lane”, to add a southbound lane much earlier than Caltrans’ proposal and can be operated to generate funds for ACE. EDF will be calling on the Sunol Grade Policy Advisory Committee, the group that oversees the addition of a new lane in the traffic-choked corridor, on Friday, March 26, to redirect the Caltrans approach to the Sunol Grade.
“EDF’s report demonstrates that implementation of a ‘flexible lane’ instead of Caltrans’ plan to pour more pavement, will deliver a southbound lane on I-680 sooner by borrowing a lane from the northbound side during the morning commute hours, ” said EDF senior economist analyst, Daniel Kirshner. “The ‘flexible lane’ can also be operated to generate funds for increased ACE rail service in the corridor to give commuters more transportation choices. ”
“Caltrans will take years to do things their way and there will be little relief when Caltrans’ equipment is finally out of the way,” said Michael Cameron, EDF transportation manager. “Why go slow, when with flexible lanes you could be traveling the Sunol Grade faster, sooner and with more transportation choices?”
“Flexible lanes are a smart choice for the Sunol Grade because these lanes provides three added travel options for commuters : use of a southbound HOV lane created by movable lane barriers, Express Lanes, and funds for more frequent ACE service,” said Renee Henry, co-author of the EDF report.
With more than 3 million members, Environmental Defense Fund creates transformational solutions to the most serious environmental problems. To do so, EDF links science, economics, law, and innovative private-sector partnerships to turn solutions into action. edf.org
Latest press releases
-
Gov. Newsom’s Can-Do Budget Proposal for Zero-Emission Vehicles Will Reduce Costs and Deliver Enormous Benefits for Californians
January 9, 2026 -
Trump EPA Takes Final Steps on Rule Expected to Overturn Endangerment Finding, Clean Vehicle Standards
January 9, 2026 -
California Shows Climate Policy is an Affordability Solution, Needed Now More than Ever
January 8, 2026 -
House Passes Funding Bills with Important Guardrails on President Trump
January 8, 2026 -
Arizona Attorney General Secures Historic Groundwater Settlement for Rural Arizona
January 8, 2026 -
Weakening Fuel Economy Standards for Cars and Trucks Would Waste Gas, Cost Money, Increase Pollution – EDF Testimony
January 8, 2026