Study participants
Participants were eligible for inclusion in the study upon meeting the following criteria: (i1) ≥ 18 years old; (i2) sufficient English proficiency to provide informed consent; (i3) living in Southern Tasmania; (i4) able to access an urban Tasmania bus service; (i5) must be making trips by motor vehicle that could be made by bus; (i6) current infrequent bus user (on average ≤ 2 trips per week in the past six months); (i7) possession or willingness to possess a public transport smartcard known as Greencard; (i8) willingness for the public transport provider and the researchers to access smartcard data; and (i9) possession of a mobile phone.Potential participants were excluded if any of the following criteria were met: (e1) intention to move house or work location whereby a bus service in the greater Hobart region will be inaccessible within the 10-month study period; (e2) currently engaged in or planning to engage in other incentive-based programs to enhance public transport use; (e3) pregnancy; (e4) a health condition that prevents walking; (e5) a health condition that prevents bus use; (e6) planned activity that would prevent bus use for greater than two weeks during the four month intervention phase of the 10 month study period (e.g. surgery, extended holiday).Participant consent was provided electronically through REDCap (Research Electronic Data Capture, Version 8.5.19, Nashville, Tennessee, USA) or in person with research staff when attending the first clinic visit (T1).