Amid a serious truck driver shortage, convenience store chain Seven-Eleven Japan began a trial delivery service using robots on public roads in a western Tokyo suburb on Monday.

In the experimental project involving two stores in the city of Hachioji, two robots at each outlet carry items ordered through the 7NOW delivery service app. Staff manually load the robots with the products.

The four-wheeled box-type robots, which can travel up to 6 kph, are designed to run on sidewalks while following traffic lights and dodging obstacles.

After conducting the tests until February next year, Seven-Eleven Japan will consider the feasibility of the robot delivery service, which is expected to help the company cope with a driver shortage and better serve older customers who have difficulty going out shopping.