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SCCMO General Press Releases

Posted on: April 25, 2016

[ARCHIVED] Improving Traffic, Serving Residents: Gateway Green Light St. Charles County Launches Citizen Survey

April 25, 2016
Contact: Mary Enger, Director of Communications for St. Charles County, 636-949-7900, ext. 1856,

Colene McEntee, Communications Manager for St. Charles County, 636-948-7900, ext. 1851,

St. Charles County, Missouri – From morning and evening rush hour to special events, Gateway Green Light St. Charles County (GGL) works behind the scenes to improve traffic on roads and highways – and the next step for the program is to gain input from residents to make it better.

GGL is a cooperative effort between the cities of Cottleville, Dardenne Prairie, Lake Saint Louis, O'Fallon, St. Charles, St. Peters, Weldon Spring and Wentzville, as well as the Missouri Department of Transportation and St. Charles County. The goal is to improve traffic signal operations throughout the county. Construction on the GGL project started in 2013. This included the installation of more than 120 miles of fiber optic cable from signals and field devices, such as road sensors that measure car movement, in addition to the upgrading of hardware and equipment on all 337 stoplights in the county. The program became operational in 2015, and now actively manages and monitors traffic signal operations in real time, especially those that cross municipal boundaries. This reduces unnecessary delays and improves traffic flow while reducing emissions that contribute to ozone pollution.

To assist the program in identifying areas of focus for the future, residents of St. Charles County can complete a short survey on traffic and related issues in the community:

The link to the survey is also accessible via the homepage of The survey will be available through May 2016.

“The residents of St. Charles County drive our roads every day, so gathering their first-hand feedback on road construction, traffic signal operations, road safety and availability of travel information in St. Charles County is invaluable to GGL,” said John Greifzu, director of Transportation for St. Charles County. “This information will help the program better serve our citizens.”

Next steps for the program include providing motorists with real-time information on roadway conditions and travel times through the use of electronic message boards and travel time sensors installed in upcoming construction phases.

“As this program expands, the public will begin to witness on a regular, first-hand basis the many benefits of Gateway Green Light,” said Greifzu.

For more information about GGL, please visit


Gateway Green Light Survey
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