Special Town Meeting voters will be presented with 13 articles to decide in the session opening at 7:30 p.m. Tuesday in the Bedford High School auditorium. Warrant items that have generated discussion include Article 4, which seeks approximately $1.1 million to install an artificial turf playing surface on the high school’s football field. The proposal received the backing of selectmen, but the Finance Committee and Capital Expenditure Committee are waiting until Town Meeting to offer their recommendations. Other articles include a proposed bond authorization of $561,000 for the reconstruction and resurfacing of Mudge Way, the Bedford Police Station parking lot, the shared Town Hall and Town Center parking lot, and School Way. The full text of the warrant can be viewed at www.bedfordma.gov.