ualitative survey methods are being used increasingly in research and policy studies to understand traveler perceptions, attitudes and behavior, as a complement to moreestablished quantitative surveys of public perceptions, attitudes and behavior. The aim of this paper and workshop is to review the use and potential use of qualitative research techniques in transport (particularly in relation t...

We show a hardness-preserving construction of a PRF from any length doubling PRG which improves upon known constructions whenever we can put a non-trivial upper bound q on the number of queries to the PRF. Our construction requires only O(log q) invocations to the underlying PRG with each query. In comparison, the number of invocations by the best previous hardness-preserving construction (GGM ...

Empirical evidence on how cognitive factors impact the effectiveness of model-supported group decision making is lacking. This study reports on an experiment on the effects of need for closure, defined as a desire for definite knowledge on some issue and the eschewal of ambiguity. The study was conducted with over 40 postgraduate student groups. A quantitative analysis shows that compared to gr...