More than 9000 Perth households will have their daily travel movements tracked by carrying personal GPS loggers as part of a massive state government survey to find out where, why and how people travel.

The household travel survey, to be collected over three or four years, will monitor a participant's reasons for travelling, their chosen travel methods, travel times and places visited using GPS and geocoding technology.

A household travel survey, being commissioned by the state government, will track the movements of 9000 Perth households. Credit:Paul Rovere

Fifteen methods of travel, including walking, cycling, driving, public transport, taxis and ride sharing, will be recorded.

The purpose of a person's travel, eg whether it is work-related, the number of people travelling with the person, their parking costs (if any) and their level of satisfaction with the travel method will also be gathered.