The previous bus routes had been in service since 2012, he said.
Prior to Monday, there were four available bus routes that took customers loops of about 45 minutes to get to their destinations, Pearson said.
People wanted shorter journeys to get to their end points, he said.
Depending on where they were, many people would be able to reach the city in fewer than 10 minutes now.
All Bus Smart hubs, where the buses start off for their journeys, have now been centralised to Tay St.
Kavinda Herath/Stuff
Bus user Ivan Russell is happy the shorter travel times give him time to relax and sip some tea.