 The Health and Safety Executive said that Carillion had failed to put up signs to warn motorists of a road closure in good time.Its subsidiary Clinicenta had a contract to run a treatment centre at Lister Hospital in Stevenage which was terminated in 2013, after the Care Quality Commission found the unit was not meeting minimum standards.In January 2016, Carillion was fined $900,000 for failing to clear Canada's Queen Elizabeth Way of snow on two occasions following winter storms in November 2015.