Through a spiraling, guided design, turbo roundabouts simplify the decision-making process, unlike conventional roundabouts, where drivers sometimes suddenly change lanes or hesitate at entry points.

When a turbo roundabout rolled into the southernmost corner of the Bay Area early last year, it became the first-in-the-state adoption of a successful Dutch traffic innovation — a multi-lane ...

California's first "turbo roundabout" was completed in San Benito County on Thursday, announced Caltrans. The roundabout located at the intersection of Highway 156 and Highway 25 opened back in ...

Caltrans built the state’s first turbo roundabout at the intersection of highways 25 and 156 near Gilroy, Calif., pictured Friday, Dec. 29, 2023. MediaNews Group/The Mercury News/Getty Images.

An intersection near Gilroy is the site of California’s first “turbo roundabout,” a spiral-shaped traffic feature. A spiral-shaped traffic feature could fix a troubled intersection near Gilroy.

SAN BENITO COUNTY, Calif. — After months of construction, California's first and America's second turbo roundabout will soon open all lanes of traffic at the Highway 25 Highway 156 roundabout ...

The “turbo roundabout” at the intersection of highways 25 and 156 in Hollister, Calif., on Tuesday, April 1, 2025. (Nhat V. Meyer/Bay Area News Group) ...

Zooming through a roundabout seems simple enough to Europeans – for some Americans, though, a step-by-step guide is essential viewing. The US is about to see its second-ever ‘turbo roundabout ...

The new “turbo roundabout” at the intersection of highways 25 and 156, in Hollister, Calif., on Friday, Dec. 29, 2023, during its construction. (Shae Hammond/Bay Area News Group) ...

The whole point of a roundabout is to slow traffic, but turbo roundabouts are different, and this is one of only three in the ...

The 'turbo roundabout' will replace a dangerous intersection between highways 25 and 156 in San Benito County which sees twice as many collisions as similar crossings in the state.

Though they are not yet common in the United States, turbo roundabouts have been quietly changing intersections all around Europe since the late 1990s. Designed to lower collisions and confusion ...