Transport planning concerning trip behaviour of people will run into new limits, when the research methods are not modified. More disaggregate analyses are necessary to increase the insights into the possibilities of and consequencies for dual-earning households to use more environmental friendly transport modes. Spatial conditions for mode choice and travel patterns are especially important. This paper elaborates and tests a modified activity diary design which can answer these research questions. An empirically based comparison between this design and those from the 1977 'Space and Time Use Research Amsterdam' (SATURA) and the 1985-1988 'National Travel Survey' (OVG) is presented. One of the conclusions of this comparison is that the new activity diary design is most successful: a mean of 7.3 trips per person a day, of which 4.1 trips on foot or by bike per person a day, and 64% of all trip times are accurate to a minute. The OVG data collecting method produces the following results: 4.4 trips per person a day, of which 1.4 trips are either on foot or by bike. Only 10% of all trip times are accurate to a minute. The conclusion is that the OVG diary design is not very useful. (A)
Abstract