School District 17

School District 17 is an area at the very edge of Academy City, it is essentially the industrial district in the city. It contains the Switchyard, or the Railway cargo storage bay, whither Accelerator and Kamijou Touma fought for the first time and ended the Level 6 Shift.

Purpose
Far away from any residential district. It's pupose was for items that was needed for research carried out in the city would also be produced in the city Instead of the usual factories that are common in the outside world, the buildings in the industrial section are windowless and are highly organized, built to work for 24 hours a day.

Switchyard
The switchyard is a large area located within the district, and used similarly to a transit bus garage, wherein many trains are serviced and where they are kept. It is an area about as large as the demesne of an ordinary school, the grounds covered with gray and dirty gravel, interposed by the cold steel of train tracks, which ram over 10 rails that lined up next to each other. Old service garages, with their rattling shutters, met these lined rails, wherein the trains entered their square arpertures. Metal containers of cargo and similar things, surrounded the metal fenced area. Left by and for freight trains that stopped in the area, they were lined atop of each other, making the once open area into a labyrinthine maze of metal corridors.

Typical of cargo bays, equipment such as cranes are present.

Sisters Arc

 * Main article:Sisters Arc

The switchyard is used as the 10032nd battle experiment scenario of the Level 6 Shift, where Misaka 10032 is forced to battle Accelerator and is expected to be killed. Touma later does battle with Accelerator, and ends up ruining the area, and after much struggle, Accelerator obliterates the containers of the area with a dust explosion.

Much later, after Accelerator goes berserk, the area is nigh-completely blown away by Accelerator's use of wind. This is redacted from the anime from some reason.

Tree Diagram Remnant Arc

 * Main article:Tree Diagram Remnant Arc

Kuroko mentions that she found Mikoto's signature arcade coin used for her Railgun move in the obliterated Switchyard after Judgment along with Anti-Skill to clean up the place.