Anyone walking through the hallways of Greenwood High School may have noticed some peculiar signs hanging from the ceilings and wondered what they were for.

These signs are part of a program called “Fast Path,” designed to aid emergency responders making their way through the school building. They are composed of different numbers and symbols that indicate where you are standing when looking at the sign, and where other locations are around you. Below is an example:

On the signs, each hallway is designated with a number that has been assigned to it. Every Warren County Public School has its entrance hallway labeled as Hallway O. Elevators are represented by an E, and stairways by the symbol $.

Dead-end hallways–hallways that don’t connect to another hallway on the far end–are labeled with the number of the hallway they stem off of, then A or B (for example, 3A branches off of Hallway 3).

Signs on the 2nd floor have a small number 2 next to the big number in the center (which indicates the hallway you are standing in), while signs on the first floor do not have a number in that location.

The numbering of the hallways on the 2nd floor mirrors that of the 1st, as can be seen below:

Each classroom also has a small sign showing what room and hallway number the class is in. That way, if there is an emergency, a student or teacher in a classroom can call for help, and emergency responders can find their way through the school to provide assistance.

Officer Rich, who is in charge of the implementing the Fast Path system through the Warren County Sheriff’s Office, is excited about the program and feels it will be a good way to ensure the safety of the school. The system has been put in place in all Warren County Public Schools, and many nearby schools, including Bowling Green City and Allen County Schools, are considering adding them as well.