Driver shortages have largely been blamed for the raft of bus cancellations everyday, but unions say it's also because some companies are too stingy to offer workers extra hours.
RNZ is launching a series of stories today into the headaches faced by bus passengers in our biggest cities.
An RNZ data analysis shows that on the worst day in February, one in nine Auckland buses were cancelled, and one in six in Wellington.
Tramways and Public Transport Union national president Gary Froggatt spoke to Corin Dann.
