Wolfline
The Wolfline is an area bus service serving the students, staff, faculty, and general public on and around North Carolina State University's campus in Raleigh, North Carolina. As of Fall 2017, Wolfline is operated by Transdev, after being operated by First Transit between 2007 and 2017, under contract with NC State's Transportation department. The Wolfline was the first mass transit organization in the state to exclusively use 'clean' diesel engines. Wolfline access is unrestricted to the public and is a zero-fare service. The preceding contractor was Veolia Transport. The Wolfline began operating in August 1980 with  one route. Currently, the Wolfline operates 11 routes on and between Main, Centennial, and the Veterinary School campuses. These routes often coincide with those operated by GoRaleigh and GoTriangle, facilitating movement about Raleigh, Cary, and the entire Research Triangle by bus. Of the 11 campus-area routes, 3 run during weekdays and weekends, and 4 operate as daytime and nighttime routes, continuing past the 10:00 pm hour until 1:30 am or later. Over the summer, regular service is roughly cut in half. During student breaks, the Wolfline runs limited service routes, focused on moving faculty and staff around. The Wolfline  does not run on federal holidays. After the beginning of the COVID-19 pandemic, Wolfline switched its routes significantly, changing its numbering to only include two digit route numbers, though many of the new routes resemble the pre-pandemic routes.