Santa Rosa traffic engineers are hoping a new kind of traffic signal will help drivers make better decisions when they make left turns at intersections in the city. The city is the first in Sonoma County to install traffic signals with flashing yellow left-turn arrows.

Petaluma City Council members will be asked Monday whether the city should urge North Bay legislators to reject the governor’s gaming agreement with the Federated Indians of Graton Rancheria, who plan a huge casino near Rohnert Park. What do you think the council should do?

Is it possible to walk from the fire station in Cotati to City Hall? Judging by the squabble over traffic roundabouts, maybe not …

One of Cotati’s biggest employers may have inadvertently undercut its objections to a city proposal to install two roundabouts on its main street. Oliver’s Market, which has said it won’t relocate downtown if the traffic plan goes forward and may leave the city, has been showing a video to demonstrate how the roundabout would be an impediment to big trucks. Only one problem: the video does not tell the full story.

Oliver’s Market, one of the biggest companies in Cotati, says it won’t move downtown and may leave the city if officials go ahead with a plan to redesign the main street. The $3.5 million design would would narrow Old Redwood Highway to two lanes downtown and incorporate two roundabouts.

A community meeting about a plan to reconfigure Petaluma Boulevard South will be held at 5:30 p.m. Thursday at Graziano’s Italian restaurant in downtown Petaluma. City staff members will be available to answer questions and take feedback on the plan.

The Petaluma City Council has affirmed its support — though just barely — for reducing the number of traffic lanes through the heart of the downtown shopping district. Many downtown merchants believe the reduction of lanes could throttle traffic so much as to make motorists — and therefore shoppers — avoid the area altogether.

Businesses and neighbors in Petaluma are opposing a plan to create an experimental Bicycle Boulevard on East D Street. They are worried the city’s plan will remove parking spaces and make the street less safe. One says she has got about 150 signatures on a petition opposing the plan.

Santa Rosa traffic officials are considering removing one of the four roundabouts on the city’s experimental “Bicycle Boulevard” following safety concerns expressed by pedestrians. Critics say the roundabouts are unnecessary, confusing and dangerous, while supporters say they’re succeeding in reducing traffic and improving the experience for cyclists.

The Board of Supervisors wants more time to consider traffic impacts and other documents filed in an appeal of the proposed Delectus Winery, which the county’s zoning board unanimously approved in April.