Hard-to-reach areas between and underneath coach seats may soon be much cleaner, thanks to a new robot designed by a research study group in Scotland.

The Rail Safety and Standards Board has sponsored scientists from the National Robotarium, supported by Heriot-Watt University and the University of Edinburgh. It is part of a larger £21 million innovation project.

It has taken two-year to develop the robot, which can operate alongside staff to accurately identify types of waste and remove them. The programme is in response to a national survey that showed 25% dissatisfaction with overall levels of train cleanliness.