Los Angeles Internationl Airport has some ‘smart’ restrooms, now Atlanta Hartsfield-Jackson International (ATL) has some too.

As part of its $6 billion modernization program, ATL is testing technology to improve the restroom ‘experience’.

Two pairs of restrooms (at Delta’s Gates B18 & B23), now feature  Tooshlights – a system that works like modern parking lots to light red or green lights (in use/empty) over stalls – and Infax, a system that tracks restroom usage so janitorial staff knows when the space needs to be cleaned.

Anyone who has ever waited on line in an airport restroom waiting for an empty stall – and anyone who has been in a stall and had someone rattle the door to see if it’s open – will appreaciate the red light/green light system, especially when rushing between flights.