The trial used British Sign Language (BSL) to share on-board information with passengers with hearing impairments.
Interpreters were filmed signing each station and an AI program then also used the clips to provide updates about cancellations and delays.
According to recent census data, more than 22,000 people across England and Wales use BSL as their main language.
“These sign language announcements have been well-received by our customers during the recent trial,” Mr Rice said.
“We can now press ahead with rolling them out on all of our services.”
