Specifications include, but are not limited to: Signal coordination and control in Plaistow, NH along the NH Route 125 corridor from Mass S/L to Old County Road including remote control of signals, network surveillance and monitoring and emergency routing capabilities. ). Preliminary and Final design for the improved intersection and adjacent roadway. This effort will also require services to support project advertisements including, but not limited to: Evaluation of existing conditions including data collection and analysis, traffic modeling of existing conditions using Synchro software, and traffic modeling of optimized signal timings using Synchro software. Implementation of the improvements including training personnel, implementing optimized signal timings at intersections, monitoring resulting conditions, investigating reports of signal timing issues, adjusting signal timing and modeling, as necessary, and providing project documentation. Roadway design Signal optimization and coordination Environmental investigations to prepare and complete all appropriate environmental documentation to satisfy NEPA. Drainage design, including appropriate water quality evaluations Construction traffic control design Contract Plans and Documents Construction support services