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Traffic Signal Projects
St. Paul Arterial Roadway Traffic Flow Improvements (SPART)

This project consists of installing conduit and fiber optic interconnect through 62 intersections along 15.5 miles of roadway within the City of Saint Paul.

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Project Description:

The Saint Paul Arterial Roadway Traffic Flow Improvements Project, nicknamed SPART, has evolved as one piece of an overall strategy developed by the St. Paul Traffic Division. The goal of providing a city-wide fiber optic network dedicated to traffic control and interconnecting signals with a centralized computer network is one step closer to fruition.

The city has previously installed more than 20 miles of fiber optic communications links dedicated to traffic control functions, and with the SPART project will install 15.5 miles more.

The city has received federal funds to expand the our central traffic control capabilities providing enhanced traffic management, improved traffic flow, reduced traffic congestion, and reduced harmful vehicle emissions along the project corridors. The project consists of two parts:
• Part 1 involves construction and installation of the fiber optic network.
• Part 2 deals with the development and implementation of optimized signal timing plans.

The SPART project encompasses 62 signalized intersections within 15.5 miles of transit corridors located within Saint Paul. The corridors were chosen because they have high traffic volumes, provide vital linkages between regional and local transportation destinations, are a good fit for the city-wide fiber optic transportations communications plan, and are important regional and local transit corridors.

 The corridors are:

1. Seventh Street from Davern to White Bear
2. St. Paul Avenue from Seventh to Cleveland
3. Cleveland Avenue from St. Paul to Ford
4. Ford Parkway from Cretin to Snelling
5. Snelling Avenue from Montreal to Hewitt

At present some of the signals within the project area are currently interconnected with old copper cable that is adversely affected by electrical interferences of one type or another. The advancement of fiber optic technology will provide a more robust and reliable communications system.

This project will upgrade the existing copper interconnect for 37 signals to fiber optic cable and will expand the fiber optic central communications to include an additional 25 signalized intersections.

The installation of fiber optic cable along the proposed corridors will move the city closer to its goal of providing a city-wide fiber optic backbone dedicated to traffic control and management. It will add central computerized management to 62 project signal systems and 15.5 miles of project roadways. All of the project’s signal systems and roadways will benefit from the added functionality and reliability of fiber optic communications as well as the development and optimization of updated peak-hour timing plans

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