A recent analysis of big data by Central Nippon Expressway Co. (NEXCO Central) has revealed that more and more men tend to prefer cubicles over urinals in restrooms.

Real-time panels near the entrance of restrooms showed which cubicles are occupied using sensors installed on cubicle doors that detect when they open and close.

NEXCO Central began collecting data from the sensors 11 years ago, when the company was privatized, in order to address customer complaints, including about wait times.