Atlanta deploys Bluetooth-based DMS to help improve travel times

The Cobb County Department of Transportation (CCDOT) in Georgia, USA, has activated six full-colour dynamic message signs (DMS) in the metropolitan Atlanta area in a bid to improve travel times and enable motorists to choose less-congested routes. The LED signs have been installed on Cobb Parkway, South Marietta Parkway, Roswell Road and Spring Road to provide travel time information for common destinations and indicate the congestion level related to specific routes in real time. Travel times on I-75 and C
May 10, 2017 Read time: 2 mins
The Cobb County Department of Transportation (CCDOT) in Georgia, USA, has activated six full-colour dynamic message signs (DMS) in the metropolitan Atlanta area in a bid to improve travel times and enable motorists to choose less-congested routes.


The LED signs have been installed on Cobb Parkway, South Marietta Parkway, Roswell Road and Spring Road to provide travel time information for common destinations and indicate the congestion level related to specific routes in real time.

Travel times on I-75 and Cobb Parkway appear in digits that are green, yellow or red, depending on the average speed of the roadway. Green digits indicate near free-flow speeds, yellow digits indicate moderate speeds and red digits indicate slow conditions. Public service announcements as well as information related to incidents, construction and special events also will appear on the signs.

The travel time messages use real-time data collected by a recently expanded travel time system, which now covers many major arterials within Cobb County and freeways in the Atlanta metro area. The data comes from detectors that collect anonymous electronic addresses from motorists’ 1835 Bluetooth and wi-fi-enabled mobile devices.

Air Quality & Weather Systems Networking & Communication Systems

For more information on companies in this article

Related Content

  • Low-costs solutions to improve pedestrian safety
    May 8, 2015
    David Crawford welcomes low-cost safety initiatives for pedestrians in America. Some 10 people die each week in accidents on crosswalks in the US, that’s more than 10% of all pedestrian fatalities in road traffic incidents - the number of which is running at a five-year high. Ensuring crosswalks are safe is key in supporting the growing enthusiasm for walking as a travel mode. In the last decade of the 20th century, numbers walking to work in the US fell by 26%; while, as recently as 2012, Americans were e
    Read More
  • Advances in real time traffic and travel information
    March 16, 2012
    David Crawford admires TomTom’s flying start to 2012. Gobal location and navigation equipment supplier TomTom rang in 2012 with two strategically important announcements. First was the signing of a deal with Korean electronics giant Samsung, representing an important consolidation of its position in the consumer market. Under this agreement, TomTom maps and location content will power the Samsung Wave3 smartphone, launched in autumn 2011. TomTom data will support navigation and search-and-find applications
    Read More
  • Report analyses multiple ITS projects to highlight cost and benefits
    March 16, 2015
    Every year in America cost benefit analysis is carried out on dozens of ITS installations and pilot studies and the findings, along with the lessons learned, are entered into the Department of Transportation’s (USDOT’s) web-based ITS Knowledge Resources database. This database holds more than 1,600 reports and periodically the USDOT reviews the material on file to draw conclusions from this wider body of evidence. It has just published one such review ITS Benefits, Costs, and Lessons Learned: 2014 Update Re
    Read More
  • SESA connects dynamic messaging signs to the cloud
    January 8, 2016
    SES America is showing off two of its latest lines of dynamic messaging signs at ITS America Pittsburgh, highlighting the growing diversity of its product line for customers who are finding more applications for displaying multiple messages on demand.
    Read More

Highlighted Content