Alert message display device, alert message display method, and program recording medium

An alert message display method, comprising:

• predicting a stoppage time for a large passenger vehicle that is stopped or scheduled to be stopped;
• sensing, by one or more sensors, a surrounding condition of the large passenger vehicle during the stoppage time;
• determining whether a vehicle is approaching from an opposite lane during the stoppage time;
• and
• displaying, when it is determined that the vehicle is approaching from the opposite lane, a predetermined alert message on a first display device disposed at a position visually recognizable from a rear side of the large passenger vehicle.

A program recording medium non-transitorily recording a program for causing a computer to execute processes of:

• predicting a stoppage time for a large passenger vehicle that is stopped or scheduled to be stopped;
• sensing, by one or more sensors, a surrounding condition of the large passenger vehicle during the stoppage time;
• determining whether a vehicle is approaching from an opposite lane during the stoppage time;
• and
• displaying, when it is determined that the vehicle is approaching from the opposite lane, a predetermined alert message on a first display device disposed at a position visually recognizable from a rear side of the large passenger vehicle.