Specifications include, but are not limited to: Phase 1 – Signal Infrastructure Improvements 1. Evaluate existing signal infrastructure and provide improvement recommendations for stop-bar detection, wireless network equipment, and central signal software for City consideration. 2. Provide specifications for recommended stop-bar detection, wireless network equipment, and central signal software to be included in city procurement documents. 3. Provide technical guidance to the City during the review of bids/proposals and make recommendations for awards. 4. Provide technical guidance and support to the city as needed while the city hires and manages a networking consultant to install a network to communicate with the central signal software that will be physically located at Gardner City Hall. Phase 2 - Signal Timing Development and Implementation 1. Collect intersection turning movement counts and mainline tube counts during a typical weekday. Develop time-volume graphs and recommend a time-of-day schedule for coordinated signal timing plans. Collect existing condition travel time data for three recommended peak hours of a typical weekday. 2. Develop optimized signal timings for free operation and develop up to three timeof-day coordinated signal timing plans. 3. Implement all new signal timings and adjust as needed to further improve coordination based on field observations. Phase 3 - Post-Implementation 1. Collect post-implementation travel time data during the same three recommended peak hours collected for the pre-studies. 2. Identify improvements to the corridor in terms of fuel consumption costs and vehicle pollutant emissions.
