Chattanooga Regional Intelligent Traffic System

Project Photos

Location: Chattanooga, TN
Client: City of Chattanooga

Volkert has been involved in the planning and design of the Chattanooga Regional ITS project since 2006. Volkert prepared the preliminary concept, project descriptions and estimates for the submittal of proposals to TDOT to assist the City in obtaining over $9 million in CMAQ funds to date. Recently Volkert prepared the estimates and updated project description for requesting an additional $23 million in CMAQ funding.  Volkert participated in the design the Regional ITS System and provided construction inspection services for the upgrade of 86 intersections in the Central Business District which is in the final stages of system acceptance. The Regional ITS System includes ITS field and head end devices at the TOC (Traffic Operations Center), a state-of-the-art computerized control and monitoring system with back-up power and hardware systems, over 390 traffic signals, 70 dynamic message signs, and 70 traffic congestion surveillance cameras. The project includes the preparation of Agency Agreements as well as the design and integration of signal systems for 8 municipalities adjacent to Chattanooga. The project is one of the largest completely wireless ITS systems in the Southeastern United States.

Services for this project include NEPA document preparation, evaluation of traffic systems alternatives in compliance with the System Engineering Analysis guidelines (23CFR940.11), evaluation of railroad impacts, life-cycle cost analysis, public outreach and stakeholder meetings, preparation of signal timing plans, preparation of traffic responsive signal operations, preliminary and final design plans, and provision of construction engineering reviews and construction inspection services.  The signal timing portion of the contract also includes the preparation of Incident Management street network signal timing when incidents occur on the adjacent interstates.  With the Dynamic Message Signs, and the Incident Management timing, drivers will be informed of alternate routes and signal timing will be automatically adjusted to accommodate the redirected traffic back onto the interstate roadways.

Scope of Work: Traffic Analysis, Traffic Engineering, Public Involvement, Impact Assessment, ITS Design, Construction Services