Minister for Territory Municipal Services Shane Rattenbury said the changes would take effect on October 12 and were based on MyWay data, customer feedback, and GPS tracking.

"Previously we had too many services running early [in the morning] according to community feedback and now we have spread it more evenly across the morning," he said.

"We've got a new direct service from Crace to the city in peak periods and also new direct services for Florey and Latham in the peak periods."

Mr Rattenbury said there had been an evening out of the timetable to make sure services ran on time and were matched with demand.

The changes include additional Red Rapid services in the evening, and Xpresso services from North Weston and Chisholm park-and-ride stops every ten minutes during the morning peak.

Mr Rattenbury said the timetable changes were necessary to allow the introduction of mandatory 10 minutes breaks for drivers.

"To implement this change service planners have strived to minimise any disruption to passengers with a limited reduction of low patronage services on some routes," he said.

Mr Rattenbury said staff had worked hard to improve their on-time performance and were proud of their efforts in the past 12 months.

"We have continued to improve on our on-time running performance over the past three years from 68 per cent in 2012-13 to 74 per cent in 2014-15," he said.

"Current on time running figures are at 79 per cent, a number we hope will improve again following the changes in October."

The current on-time figures means the ACTION bus network has met its 75 per cent target, despite falling behind in recent years.

Bus patronage has increased since the introduction of pay parking in the parliamentary triangle with government figures revealing an additional 8600 passengers each week between October 2014 and March 2015.

Mr Rattenbury said the changes were also designed to reduce the number of dead runs, or bus movements without passengers from a depot to the start or finishing point of a route.

Last year, empty ACTION buses travelled more than 17,000 kilometres every day costing ACT taxpayers $17 million each year.

"Dead running is always a frustrating part of any bus network and there is an inevitable level of dead running, but some of the changes we are making pick that up," Mr Rattenbury said.

"This is a service we added coming back from Gungahlin that late at night would otherwise have been a dead run, but we've added that as an additional service."

Full details on bus routes, timetables and maps are available at action.act.gov.au or from the ACTION and MyWay information line on 13 17 10.