{ "item_title" : "Traffic Signal Operations and Maintenance Staffing Guidelines", "item_author" : [" Federal Highway Administration", "U. S. Department of Transportation "], "item_description" : "This report provides a guideline to estimate the staffing and resource needs required to effectively operate and maintain traffic signal systems. The results of a survey performed under this project, as well as a review of the literature and other surveys indicated that agencies achieving a high level of signal system performance do so under a wide variety of conditions such as agency size, geography, system complexity and traffic conditions that do not adhere to the typical level of documented resource requirements. Accordingly, a set of performance-based criteria were developed to define requirements. The performance-based criteria are focused on establishing realistic and concise operations objectives and performance measures.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/1/50/856/873/1508568731_b.jpg", "price_data" : { "retail_price" : "16.79", "online_price" : "16.79", "our_price" : "16.79", "club_price" : "16.79", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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