Wider Highways? Bay Area’s Smart Growth Plan Has Some Glaring Mistakes
Population growth in the Bay Area doesn’t have to mean more traffic and more suburban sprawl, if it’s planned for in a sustainable way. To that end, regional planners at the Metropolitan Transportation Commission recently released a draft of Plan Bay Area, a state-mandated blueprint for focusing housing growth over the next 25 years near transit hubs, where new residents are less likely to need a car to get around.
A high-occupancy toll lane on Highway 680. Photo: Laura Oda, Bay Area News Group
Sustainable planning advocates say the plan is mostly headed in the right direction, but it still falls short in some areas. One glaring mistake is that the plan calls for spending billions to widen highways to create high-occupancy toll lanes — carpool lanes that single-occupancy drivers can pay to use. Those lanes should instead be created by converting existing highway lanes, says TransForm, an Oakland-based group that advocates for better walking, biking, and transit policies on a regional and state level.
“MTC’s plan follows a 1970s-era Caltrans practice that limits Express Lanes to new construction only, without even studying the option of optimizing existing lanes,” wrote TransForm Deputy Director Jeff Hobson in a blog post. “This kind of outdated thinking is hardly the best approach to solving 21st century transportation problems – and would completely exclude some of the most congested stretches of highway from the plan.”
Because most of the revenue from HOT lanes will be soaked up to pay for the highway widenings, instead of just charging single-occupancy drivers to alleviate congestion in existing lanes, SPUR has pointed out that they will generate little money for transit improvements. Meanwhile, the new lanes will induce more demand for driving and do nothing to reduce existing congestion.

Shown in pink: Priority development areas, where housing growth will be focused over the next 25 years under Plan Bay Area. Image: MTC
“MTC’s plan continues the cycle of ‘build more lanes, attract more drivers’ by creating new options for solo drivers, but no new transportation choices,” wrote Hobson. ”Over the long term, this strategy is virtually guaranteed to land us back at square one: gridlock on heavily-traveled highways.”
The MTC’s draft plan also fails to include enough new transit-oriented affordable housing to reduce the projected costs of housing and transportation, TransForm says. While the MTC set a goal of reducing those costs from an estimated 66 percent of household income for low-income families region-wide to 56 percent, the agency actually projects those costs to increase to 73 percent of household income. That means living in a walkable community would be less affordable than it already is.
“Without stronger policies in place to prevent that from happening, folks will end up living farther and farther away from places like San Francisco, and we will then encroach on our precious farmland and open space that we’re so fortunate to have in the Bay Area,” TransForm Community Planner Joél Ramos told MTC commissioners at a recent public meeting.
The MTC does expect the plan to meet its goals in six areas, including providing enough housing for all of the Bay Area’s projected new residents without any expansion of sprawl; exceeding the state-mandated 15 percent reduction in per capita greenhouse gas emissions (the projected improvement is 18 percent); and reducing residents’ exposure to dangerous fine particulate pollution, which largely comes from trucks, by 71 percent. MTC Executive Director Steve Heminger also said that the spending plan for transit improvements focuses primarily on fixing existing systems first before embarking on expansions.
Yet Plan Bay Area falls short in addressing other major problems [PDF], with some even expected to get worse:











