With seven busy divisions and a transportation network including roadways, transit, trails and sidewalks and an airport, there is a lot to know about Cobb County DOT. Check out the resources below to learn about our operations, answers to common questions, and more!
|Diverging Diamond Interchange (DDI)||Flashing Yellow Arrow||Roundabouts|
|A Diverging Diamond Interchange is a new type of intersection design that can increase capacity, decrease congestion, and enhance safety.
Two DDIs are planned for Cobb County: Windy Hill Rd/I-75 and Wade Green Rd/I-75.
DDI Fact Sheet
DDI White Paper
|A flashing yellow arrow is part of a new signal display system that more clearly indicates to drivers when they must yield before making a left turn across traffic.
As of April 2015, Cobb County has 14 FYA signals.
FYA Fact Sheet (2013)
FYA Video (Michigan DOT)
|A roundabout is a circular intersection where traffic flows around a center island. Roundabouts enhance safety, are more efficient and have a higher traffic capacity. Cobb County has six roundabout projects (2015).
Info Video (AZ DOT)
Roundabout Fact Sheet
Cobb DOT Video
County Line Roundabout
Villa Rica Roundabout
|Windy Hill Road Diverging Diamond Interchange||Winter Weather Road Safety||Transportation Management Center|
|In January 2016, construction of a Diverging Diamond Interchange began on Windy Hill Road. Keep track of project updates here.
|Winter brings some of the most dangerous road conditions of the year. Cobb DOT wants to you to be safe by using these quick precautions and tips.
|In 2015, Cobb DOT's TMC celebrated the five-year anniversary of its new, state-of-the-art building. Learn more about the DOT's high-tech traffic operations team.
|GIS at Cobb DOT||Windy Hill Road|
|Cobb's Geographic Information System (GIS) plays a huge role in supporting Cobb DOT's projects and operations. Check out GIS by the numbers.
|The Windy Hill Road project is a $48 million investment that will transform the corridor. Learn the facts of this five-part project.