Much of the design of school corridors is dictated by the life safety requirements which ensure that hallways are wide enough to allow students to evacuate the building quickly. Regardless, as a general rule hallways should be broad, well lit, and void of projections. Designs which lead to sudden 90 degree turns and narrow hallways should be avoided. The corners allow people to hide and cause others to run into each other. Chamfered corners allow better visibility as well as smoother pedestrian traffic flow.
Windows near classroom doors allow instructors to monitor corridors. If door niches are provided they should be chamfered and wide enough to allow a clear line of sight down the hall".
To reduce hiding places and possible injury, water coolers, vending machines, trash containers, and lockers should be either low profile or flush with the wall. Avoid creating alcoves, nooks and other small spaces along corridors that promote criminal activity. Any freestanding objects such as stand alone lockers or vending machines should be mounted to the wall to avoid injury if they should fall over.