Specifications include, but are not limited to: The Missouri Department of Transportation has determined that only one source, Cardinal Scale Manufacturing Company, can provide the Department with the replacement of defective components for the existing Cardinal Scale QWIM-1 weigh-in-motion/traffic control systems function through a proprietary interface that integrates sensor generated system data to automatically weigh, sort, and provide truck queue management for incoming commercial vehicles at the Mayview, Missouri and Foristell, Missouri weigh stations. While this system incorporates several commercially available components, Cardinal Scale Manufacturing Company is the only vendor who can provide the system programming and the software/coding connections necessary for the system to function. Additionally, other hardware components likely to be defective are proprietary to Cardinal Scale and cannot be provided by other vendors. The contract period is from Date of Award to June 30, 2019, with two (2) one-year renewal options.