Frequently Asked Questions

Conceptual drawings for both locations can be viewed here

It is anticipated that this project will begin construction at the beginning of the new year, 2026, and see completion by March 2026.

Roundabouts make residential regions safer by reducing vehicle speeds and eliminating the most dangerous types of crashes, which benefits all road users, including drivers, pedestrians, and cyclists as roundabouts significantly lower the frequency and severity of accidents.

A one-lane roundabout is preferred over a two-lane roundabout for several important reasons related to safety, simplicity, feasibility, and efficiency. A single-lane roundabout has fewer conflict points making it much safer. One-lane designs reduce confusion, particularly for unfamiliar or older drivers. The narrower lanes of a one-lane roundabout promote slower driving, which in turn increases pedestrian and cyclist safety. In many areas, especially rural areas, the traffic volume can be handled easily with a single-lane roundabout. In addition to these factors, space along the highway is physically constrained and limited, as it runs the Pacific Ocean and the Santa Monica Mountains. The road is also constrained by bordering residential properties, commercial destinations, and recreational areas, such as beaches and parks. The design of a two-lane roundabout is not feasible within the existing roadway width.

Drivers will be informed of the one-lane roundabout in advance through a combination of road signs, pavement markings, and modified roadway design features. These help prepare drivers to slow down, yield, and enter the roundabout correctly.

Merging bike lanes into the travel lane through a roundabout is a common design in the U.S. and elsewhere for single-lane roundabouts. How it works is before the roundabout, the dedicated bike lane ends and cyclists are directed to merge into the vehicle travel lane. Inside the roundabout, bicycles ride centered in the lane to prevent unsafe passing. After the roundabout, bike lanes resume on the far side.

The roundabouts will provide parking availability along both sides of Pacific Coast Highway, by optimizing space. A one-lane roundabout requires less space than traditional signalized intersections with turn lanes, thus the space saved can be utilized for parking along the shoulder area.

View the flyer here