Background/Discussion
The traffic control Central Management System (CMS) is used to control and coordinate signal timing, allows signal preemption for emergency vehicles, and permits remote access for signal operation.
The city has 16 existing intersections utilizing the CUBIC|Trafficware software. This project will integrate 61 additional intersections into the CUBIC|Trafficware software platform, thus eliminating the city’s dependency on two central management systems. The Iowa DOT is planning to construct traffic signals at 10 additional intersections utilizing this software platform as part of the CBIS improvements.
The project implements a single CMS citywide, and includes upgrading an existing city traffic server, purchasing licenses for the traffic server, an annual maintenance agreement, intersection controller software and hardware, intersection controller database conversions, and field support.
The benefits of sole sourcing CUBIC|Trafficware over the other competitors are: PTZ camera integration, live intersection map view, adaptive traffic software (City currently uses CUBIC|Trafficware), web based support, cross platform compatibility, integration with modeling software, flashing yellow arrow compatibility, connected/autonomous vehicle compatibility, user interface (operability, navigation, functionality), and modernizing the city’s traffic infrastructure. CUBIC has a track record of success with adaptive corridors and has patented simulation modeling for changing traffic conditions.
The cost for the CMS conversion is $259,000. Implementing a single system with one software will save the city $13,500 annually on maintenance fees. Reduced overtime costs associated with afterhours call-outs are also anticipated.
This project is included in the FY21 CIP and includes a budget of $275,000 in Sales Tax Funds.