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SOUTHWEST & COMMERCE ROUNDABOUT, PROJECT NO. 2017-07

SB-1Measure M

Southwest and Commerce Boulevard Roundabout Project

Updated Week of May 30, 2022

Construction Updates:

As of Tuesday, May 17, 2022 the roundabout is open! There will be some on-going construction activities over the next several weeks, including green striping for the bicycle facilities. Please continue to drive with caution in the area.

Roundabout Ribbon Cutting Celebration:

The City would like to thank everyone who attended the Southwest and Commerce Boulevard Roundabout Ribbon Cutting Celebration on May 25, 2022. The official opening of this long-awaited project is here, providing an environmentally friendly improvement to pedestrians, bicyclists and vehicles. We would like to thank our City staff and contractors for bringing the project to completion two months ahead of schedule and our businesses and residents for their patience during construction. Please see videos of the event here:


Roundabout Ribbon Cutting
How to Navigate a Roundabout: 
  1. Slow down as you approach the intersection
  2. Yield to pedestrians and bicyclists crossing the road
  3. Follow instructions of surrounding signage or pavement markers prohibiting certain movements
  4. When there is a large enough gap in the vehicles for you to merge safely, enter the roundabout moving counter-clockwise.

California's "Basic Speed Law" says you can never drive faster than is safe for current conditions. The Southwest and Commerce Boulevard intersection has an advisory speed limit of 15mph. As our residents acclimate themselves to the roundabout, we encourage drivers to be extra mindful of speed, signage, pedestrians, and other vehicles. For more on rules of the road, you can review the California's Driver Handbook.

While construction of the roundabout is intended to increase flow, traffic might still occur. In this case, follow the basic speed law, and decrease your speed accordingly. However, the City overall expects to see a notable reduction in congestion in the surrounding area. In addition, a decrease in the emissions associated with traditional intersections.

Please see the short video here for instructions and examples of how to drive through the City's first roundabout.

What:

The construction of a roundabout at the intersection of Southwest and Commerce Boulevards is replacing the old three-way stop. The project increases safety for motorists, pedestrians, bicyclists and public transit while improving traffic flow, decreasing travel times, and reducing carbon emissions. Additionally, the project included improvements to the neighborhood's sewer capacity.

When:

The project began on January 4, 2022, and is open to traffic on May 17, 2022. There will be some on-going construction activities over the next several weeks, including green striping for the bicycle facilities. Please continue to drive with caution in the area. The City appreciates the community's patience and flexibility of this important traffic facility.


Rohnert Park Road Improvements Update for Week of April 17, 2023:

Rohnert Park Expressway and Commerce Boulevard Pedestrian Crosswalk Improvements

4/17/2023 UPDATE: New striping was placed Sunday night as Phase 1 of our Rohnert Park Expressway & Commerce Boulevard pedestrian refuge project. Temporary traffic control will be installed on Tuesday morning at Rohnert Park Expressway and Commerce Boulevard (see Figure attached) and will remain in place for the rest of the week. Drivers making the north bound left turn from northbound Commerce Boulevard onto westbound Rohnert Park Expressway should pay extra attention as they go around the corner to avoid the temporary barrier or veer into an adjacent lane.
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El domingo por la noche se colocaron nuevas franjas como Fase 1 de nuestro proyecto de refugio para peatones de Rohnert Park Expressway y Commerce Boulevard. El control de tráfico temporal se instalará el martes por la mañana en Rohnert Park Expressway y Commerce Boulevard (ver la figura adjunta) y permanecerá en su lugar por el resto de la semana. Los conductores que giren a la izquierda en dirección norte desde Commerce Boulevard en dirección norte hacia Rohnert Park Expressway en dirección oeste deben prestar especial atención al doblar la esquina para evitar la barrera temporal o cambiar a un carril adyacente.
striping



Improvements to the western pedestrian crosswalk at the intersection of Rohnert Park Expressway & Commerce Boulevard are happening this weekend! Construction will take place Sunday night, April 16th thru Friday, April 21st. You can expect nighttime construction on Sunday night, April 16, and daytime construction activities during the week. During the week, the west-bound through lane on Rohnert Park Expressway will be closed, as well as the east bound left turn lane on Rohnert Park Expressway. Please see Figure 1 attached. Please expect delays and plan to use alternate routes.
RPX and Commerce Pedestrian Sidewalk