To allow for producing high quality tactile graphics, the involvement of blind users in the production process can be a very vital approach. In this paper, we describe a collaborative tactile graphic workstation. Thereby, a sighted user works with a conventional vector graphic production software while a blind user can edit the same graphic on a two-dimensional pin-matrix device at the same tim...

The perl language is a powerful tool for creation of portable programs on a wide range of platforms. Support of the graphic user interface is not included in perl, and is provided by several stand-alone graphical toolkits. The most popular modules are Perl-Tk and Wx, based on multi-platform libraries, correspondingly Tcl-Tk and wxWindows, both written in C. The toolkit Prima was written to prov...

The research in traffic flow and safety has proceeded on two different tracks. The traffic flow research has focused on macroscopic aspects and aggregate behavior, while safety research has focused on the traveller's microscopic view of the transportation system. This dichotomy of research methodology has made it difficult to study many issues in intelligent vehicle highway systems in an integr...

graphics capability, and to give the POGO user an extensive interactive computational facility. This Memorandum should therefore be of interest to systems programmers and applications programmers who are concerned with the PL/I language, with computer graphics, or with interactive programming. The PL/I language is text-oriented; it does not contain commands needed for computer graphics (e.g., "...

Interpretation and understanding of complex scientific data is enhanced by graphic representation. For those people with visual impairments, this method is inadequate. An alternative, or additional, method is to represent the data using other modalities, namely touch and hearing. Haptic display of such graphical data adds kinesthetic feedback that provides the sense of touch. Audio feedback add...

Based on Braddeley’s working memory model and research on human attention, this study intends to develop and validate a visual-auditory information presentation that: (1) minimizes the interference in information processing between the visual and auditory channels; and (2) improves the effectiveness of mental integration of information from different modalities. The Baddeley model suggests that...