Construction will start this week on a new roundabout at the intersection of Crockett Road and Green Hill Blvd/Raintree Parkway. Civil Constructors, LLC won the low bid with their $955,025 contract. The roundabout will replace the existing four-way stop and was selected over other alternatives following extensive analysis. Mike Harris, Brentwood’s Engineering Director explained, “given the backup that currently occurs at the four-way stop during peak times, we had to look at ways to improve the flow of traffic. A traffic signal or a roundabout would perform equally well during heavy volume, but the roundabout significantly outperformed the signal during off-peak times and was considered the best option,” Harris added. The roundabout also has the advantages of lower operating cost, less impact to adjacent properties, and a higher capacity to accommodate future growth in traffic volume.
Average Daily Traffic: 8,000 vehicles per day
Construction Length: Six months, weather dependent
Roundabouts have been shown to be far safer than signalized intersections and have less impact on adjacent properties. Roundabouts are safer because speeds tend to be lower and the potential for head-on collisions or side impact crashes are virtually eliminated. Accidents that do occur tend to be less severe with far fewer injuries. A University of Wisconsin study of 24 intersections that were converted to roundabouts found a 52% reduction in “severe crashes” after the conversion and a 9% reduction in the number of crashes.
The City has several other roundabouts and this one was designed to mirror the earlier roundabout completed in 2016 at Crockett Road and Arrowhead. Also included in this project is the relocation of a City of Brentwood water line. On of the city’s first roundabout was installed at Town Center Way.
