Implementing a behavioural pilot survey for the stage - based study of the whole journey traveller experience

AbstractThe European project METPEX aims to develop an evaluation tool for the whole journey experience from the passenger viewpoint. A pilot survey has been implemented to help identify what kind of information should be collected to this effect. Five categories of variables were identified and tested: individual attributes, contextual variables, attitudes, travel experience and satisfaction aspects. Administering the pilot survey resulted in a total of 554 interviews in eight different European cities. The gained experience was supplemented by consultation with 45 different stakeholders that reviewed the tool. Potentialities and shortcomings that emerged from these assessment activities are discussed

Development of an Integrated Set of Indicators to Measure the Quality of the Whole Traveller Experience

AbstractThe EU project METPEX is developing a measurement tool for the perceived quality of the whole journey experience. Special emphasis is given on the contribution to the overall quality perception from different phases of such experience, from pre-trip information acquisition to the eventual joint use of different services, especially for multimodal trips. Differences among travel means and user groups are investigated as well. Rather than exclusively focusing on public transport, the project also investigates quality issues dealing with other modes, especially walk and bike. Within such framework, the paper presents some sets of indicators distilled through Principal Component Analysis that could be used in different assessment exercises, shortly discusses how such indicators are showing us the different facets of the “quality of transport” concept and identifies future research directions for the project

Lattice-switch Monte Carlo

We present a Monte Carlo method for the direct evaluation of the difference between the free energies of two crystal structures. The method is built on a lattice-switch transformation that maps a configuration of one structure onto a candidate configuration of the other by `switching' one set of lattice vectors for the other, while keeping the displacements with respect to the lattice sites constant. The sampling of the displacement configurations is biased, multicanonically, to favor paths leading to `gateway' arrangements for which the Monte Carlo switch to the candidate configuration will be accepted. The configurations of both structures can then be efficiently sampled in a single process, and the difference between their free energies evaluated from their measured probabilities. We explore and exploit the method in the context of extensive studies of systems of hard spheres. We show that the efficiency of the method is controlled by the extent to which the switch conserves correlated microstructure. We also show how, microscopically, the procedure works: the system finds gateway arrangements which fulfill the sampling bias intelligently. We establish, with high precision, the differences between the free energies of the two close packed structures (fcc and hcp) in both the constant density and the constant pressure ensembles.Comment: 34 pages, 9 figures, RevTeX. To appear in Phys. Rev.

The Role of Prosodic Sensitivity in Children's Reading Development

While the critical importance of phonological awareness (segmental phonology) to reading ability is well established, the potential role of prosody (suprasegmental phonology) in reading development has only recently been explored. This study examined the relationship between children’s prosodic skills and reading ability. Hierarchical multiple regression analyses examined the unique contribution of word-level and phrase-level prosodic skills to the prediction of three concurrent measures of reading ability in 81 fourth-grade children (mean age 9;3 years). After controlling for phonological awareness and general rhythmic sensitivity, children’s prosodic skills predicted unique variation in word-reading accuracy and in reading comprehension. Phrase-level prosodic skills, assessed by means of an reiterative speech task, predicted unique variance in reading comprehension, after controlling for word reading accuracy, phonological awareness, and general rhythmic sensitivity. These results add to the growing body of evidence of the importance of prosodic skills in reading development