Traffic Operations — Columbia Engineering and Services, Inc.

Traffic Signal and Lighting Design

Columbia Engineering’s traffic engineers have years of experience designing and implementing traffic signal controlled intersections, including studies establishing signal warrants, analysis of traffic to determine design parameters, design of the signal components (including mast arm and span wire supports), and operation of the signals through phasing and timing plans. This includes all signalized intersections from isolated intersections, to urban signal systems operated through Traffic Management Centers. Our staff has been involved with all detection systems, and traffic monitoring, including traditional inductive loops, video detection, and microwave radar detection. We are experienced in interconnected signals using fiber optics, traditional twisted pair cable, and wireless systems to provide effective signal coordination.

Columbia is also experienced in providing Highway Lighting Analysis and Design for ADA compliant pedestrian features at signalized intersections and mid-block crossings, as well as roadway corridor and interchange high mast lighting.

We are currently Traffic Operations Design prequalified with DOTs in Georgia and Florida, and are working to achieve prequalification in other southeastern states. Our Signal and Lighting Design client list includes state and local governments in Florida and Georgia as well as private-sector clients. Columbia staff has done work in states from Florida to New York to Tennessee.

Services

Traffic Data Collection
Operational and Safety Studies
Traffic Signal and Systems Design
Highway Lighting Analysis and Design

Projects

North Point Parkway, signal coordination for five intersections: Alpharetta, GA
SR 141, signal redesign to accommodate SPUI Interchange: GA
Sugarloaf Parkway, redesign signals and connect to fiber network: Gwinnett County, GA
US 98/Panama City Beach Parkway, three signals & lighting upgraded: Bay County, FL
US 98/Tyndall Parkway, six signals upgraded: Bay County, FL
US 98/South End High School, new signal and lighting design: Santa Rosa County, FL
West Spencer Field Rd, new span wire signal and lighting: Santa Rosa County, FL

ITS/ATMS Design

Columbia’s design engineers have dozens of years involvement with ITS and ATMS Design and Operations. Our staff has been involved with camera placement, fiber optic design, wireless communications, network switches, automated count stations, variable message signs, communications for traffic signal controllers, and multiple vehicle detector systems.

We are currently ITS / ATMS prequalified with DOTs in Georgia and Florida, and are working to achieve prequalification in other southeastern states. Our ITS client list includes state and local governments in Florida and Georgia as well as private-sector clients. Columbia staff has done work in states from Florida to New York to Tennessee.

Services

ITS Analysis
ITS Design
ITS Plans Preparation
Fiber and Wireless Communication Systems

Projects

Fiber Optic Interconnect: Gwinnett County, GA (3 signals)
Fiber Optic Interconnect: Georgia DOT (1 signal)
Wireless Interconnect: Gwinnett County, GA (1 signal)
Fiber Optic Backbone with connection to three signals: US 98, Bay County, FL
Three mile Fiber Optic Interconnect for one signal to existing network, SR 388: Bay County, FL