The ease of traffic flow affects our quality of life, business climate and level of emissions. That’s why the city of Rose-ville’s Public Works De-partment is upgrading major intersections, utilizing technology to optimize the flow of vehicles throughout Roseville, and offering residents online tools that keep them in-formed about roadway conditions in real time. To assess traffic conditions, staff members monitor wait times at intersections for motor-ists, rating them from A to F (shortest to longest) throughout the day. In 1990, Public Works staff began planning a series of upgrades needed at Roseville’s three busiest intersections, which had received F ratings particularly during the 3-7 p.m. commute time: Douglas Boulevard/ Sunrise Avenue, Sunrise Avenue/Cirby Way and Cirby Way/Riverside Avenue. This summer marks the completion of those upgrades, which have been extensive. Completed in 2005, the first phase removed 25,000 vehicles per day from the Sunrise/Douglas intersection by adding lanes, providing onramp access from Sunrise to eastbound Interstate 80 through the Harry Crabb Tunnel, and providing access from the Douglas west of I-80 to southbound Sunrise by way of a flyover ramp. The second phase focused on Sunrise/Cirby, where dual left-turn lanes were installed at all four intersection ap-proaches in 2007, raising its rating from F to D—still busy during peak periods, but much improved compared to before the upgrades. Most drivers get though the signal in one or two signal cycles during peak times, whereas before it would take four to five cycles to get through. This project had no adverse impact to adjacent properties as we were able to install the dual left-turn lanes without widening the road. Phase three at Cirby/Riverside was completed this summer, which included dual right-turn lanes from eastbound Cirby to southbound Riverside, feeding heavy traffic directly on to I-80. To view current and upcoming projects, go to roseville.ca.us/pw and click on “Roadway Projects Status” on the left. Other efforts to improve traffic flow include monitoring through Intelligent Traffic Systems to optimize driving conditions by synchronizing signals on major roadways. That’s why you will often hit several consecutive green lights on major thoroughfares when driving through Rose-ville. We’re also deploying fiber-optic cable to link Roseville’s traffic-monitoring center to others throughout the region to coordinate region-wide traffic flow. And you might have noticed the addition of changeable message signs on Douglas and Washington boulevards, along with the ones on Atlantic Street and Galleria Boulevard that provide information and traffic alerts to motorists. Our Web site offers real-time traffic information along with camera images at many major intersections at traffic.roseville.ca.us/Roseville. To sign up for e-mails of road closures and detours, go to roseville.ca.us/enotify. To find out more, go to roseville.ca.us/pw.