  In spring 2022, the German federal government agreed on a set of measures
that aimed at reducing households' financial burden resulting from a recent
price increase, especially in energy and mobility. These measures included
among others, a nation-wide public transport ticket for 9\ EUR per month and a
fuel tax cut that reduced fuel prices by more than 15\,\%. In transportation
research this is an almost unprecedented behavioral experiment. It allows to
study not only behavioral responses in mode choice and induced demand but also
to assess the effectiveness of transport policy instruments. We observe this
natural experiment with a three-wave survey and an app-based travel diary on a
sample of hundreds of participants as well as an analysis of traffic counts. In
this third report, we provide first findings from the second survey, conducted
during the experiment.
