Syracuse University has officially deployed a new trolley system to provide shuttle services across campus, the university announced Sunday.

The system includes four trolleys that can each accommodate 22 passengers, according to an SU News release. The trolleys replace the Birnie Bus service, whose contract with SU expired last year.

The trolley service covers the routes previously operated by the shuttle system, including the Quad Shuttle, the Warehouse Express, the Euclid Shuttle and the Late Night Orange Express. Maps and schedules for the trolley routes are available on SU’s Parking and Transit Services website.

The Office of Parking and Transit Services also expanded the length of the Quad Shuttle route and split it into two routes. Both the ’Cuse Trolley Blue Loop and the ’Cuse Trolley Orange Loop operate around the perimeter of campus and make a stop near the Quad.

Two of the trolleys arrived at SU early last month, said Jenn Horvath, communications director for SU’s Division of Business, Finance and Administrative Services, in a Dec. 9 email to The Daily Orange. SU had already hired drivers to operate the vehicles at that time, she said. SU first announced plans for the trolley service in September and initially scheduled the trolleys to begin operation in November.

The introduction of the trolley system is part of a series of improvements to campus transportation services based on input from students, faculty and staff. The trolleys were chosen due to their accessibility features, including ramps and low floors, the release said.

The trolley service is free for anyone with an SU or SUNY-ESF ID. The trolley routes run between 6:20 a.m. and 8:15 p.m. and extend across areas on and near campus.