Bus passengers and motorists from Kenmore, Riverhills and Fig Tree Pocket can save 10 minutes from trips to and from the city after $60 million improvements to the Inner City Bypass were opened on Sunday.

A wider, four-lane section of the Inner City Bypass near the entrance of the Legacy Way tunnel now connects Brisbane’s western suburbs to the city.

Inner City Bypass is widened from three lanes to four lanes and a new ramp is added to the Royal Brisbane and Women's Hospital to get more access to buses.

The ICB has been widened from three lanes in this section, after Brisbane City Council sold it to Transurban in March 2017, meaning ratepayers contributed just $4 million to this project.

A new bus ramp was added from Bowen Bridge Road up to the Inner Northern Busway to improve access between the Royal Brisbane and Women's Hospital and the Inner City Bypass and Bowen Bridge Road.