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

  • Cooperative systems - traffic management centres of the future?
    February 1, 2012
    What will the traffic management centre of the future see and do? TNO's Frans op de Beek, who was responsible for putting together the Cooperative Mobility Demonstrations which included the Traffic Management Centre at this year's Intertraffic exhibition in Amsterdam, offers some insights. The road tours and demonstrations which took place at this year's Intertraffic to mark the conclusion of COOPERS, CVIS and SAFESPOT, the European Commission's (EC's) three major cooperative mobility projects, gave visitor
    Read More
  • FOTsis targets ‘socially inclusive’ cooperative ITS
    December 5, 2013
    The FOTsis project addresses the imbalances between the vehicular and infrastructure sides of cooperative ITS infrastructures and looks to ensure road operators can help to enrich future technology applications. By Jason Barnes. Several developments have conspired to push the vehicular side of cooperative infrastructures/cooperative ITS to the fore in recent years. The automotive industry’s rather shorter product development and lifecycles combined with economic slowdown in many regions gave rise to the not
    Read More
  • New Zealand seeks comprehensive CBA framework
    October 5, 2016
    New report highlights how assessing the financial benefit of deploying ITS is an involved and evolving calculation Following a global search, five key action areas have emerged from the New Zealand Transport Agency’s recent scoping of a more comprehensive cost–benefit analysis framework for evaluating planned ITS deployments. A report commissioned from engineering consultancy Aecom New Zealand sets out the groundwork for more closely-defined assessments that will convincingly support public-sector policy ma
    Read More
  • Priority for safety and interoperability, need for DSRC
    July 18, 2012
    Justin McNew, Chief Technology Officer, Kapsch TrafficCom Inc., USA offers his opinion of where 5.9GHz DSRC technology will head in the coming years. The debate ranges back and forth over the most suitable technological solution for future tolling and charging in the US. However, the coming trend is common cooperative infrastructure: instrumented roads and vehicles with the capacity to communicate with each other over all manner of safety, mobility and traveller applications, many of which will involve fina
    Read More

Highlighted Content