INEbase / Residents Travel Survey / Advanced query system

This system allows the composition of tables with crosses of variables that are not covered by the standard tables (monthly or quarterly series), and without having to use microdata files, which are those that provide more detailed information.

Due to the large number of classification variables with respect to the sample size, for very detailed crossing, information is not available. It is recommended to cross only two or three variables and select the category Total for the rest of them. Before presenting the table, the percentage of cells which data are not available due to lack of backup sample is indicated. If this percentage is over 50% the table is not displayed.

To make the display more user-friendly, it is recommended to change the presentation of the table and keep in the columns the classification variables for which the only selected category is the Total.