The ACT government will today announce the expansion of its free flexible bus service to the Canberra's southernmost suburbs.

Minister for Territory and Municipal Services Shane Rattenbury said the new service was introduced in response to requests from residents for more flexible transport options in the area.

It will ferry passengers between their homes and community facilities, including the Hyperdome, Erindale Shopping Centre and the Canberra Hospital, on Tuesdays and Fridays.

"The flexible bus service is a free service which operates off a basic timetable, picking up residents from their home and taking them to local community facilities such as local shopping centres and hospitals," he said.

"The service means far more than a simple trip from one point to another. It is an opportunity to enhance social inclusion across Canberra."

Mr Rattenbury said the addition of Tuggeranong brought the number of areas serviced to five, alongside Belconnen, Woden, Weston and the inner south.

The service is currently two months into a 12-month trial. It will be reviewed before receiving further funding.

Each bus is wheelchair accessible and is operated by a member of the Special Needs Transport team.

Carers who hold a valid carer's card are also permitted to accompany people on the service.

Mr Rattenbury said there had been more than 819 boardings since the initiative started on September 1.

"There have been regulars who have used the service every week since it started including the oldest traveller who is 93," he said.

"Whatever the need or occasion, the flexible bus service is there to ensure disadvantaged Canberrans can travel conveniently during the day."

For more information, phone 6205 3555, email flexiblebusservice@act.gov.au, or visit www.transport.act.gov.au