6533b835fe1ef96bd129fc11

RESEARCH PRODUCT

Modes de représentation des trajectoires quotidiennes des habitants

subject

description

Representing the daily trajectories of individuals Current research on inhabitants' daily mobilities has confirmed that individual mobility strategies are based on activity programmes. In France, the Household Travel Survey (HTS) is one of the principal sources of information about individual travel behaviour. Despite some drawbacks, they are rich sources of spatio-temporal data, as well as providing information on individual and household characteristics. However, for daily mobilities to be analysed, the raw data need to be reorganized. This study is based on the Grenoble-area Household Travel Survey, carried out in 2002. We propose to explore the HTS data through examples of individual mobility visualization. Our purpose is to show how individuals use time and space in various activities during the course of a day. Three approaches were taken: spatial, temporal and spatio-temporal. We used a cartographic tool called Traj'Net, inspired by time-geography theory and created to help analyse how space and time are used. A complex statistical approach preceded these representations. These analyses are important because of the great number of individual data. The three representation types are complementary and help to compare individual time and space use. Observations of mobility dimensions have been differentiated and raise new questions for further studies.