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Trans. Planning Journal
| Title | AN INTERFACE USABILITY ANALYSIS MODEL FOR MENU-ITEM PRESENTATION SEQUENCE IN WEB-BASED ADVANCED TRAVELER INFORMATION SYSTEMS IN TAIWAN |
|---|---|
| Author | Ting-Wei Lin |
| Summary | The objectives of this study are to develop an interface usability analysis model for menu-item presentation sequence in web-based advanced traveler in-formation systems (ATIS) and to conduct an empirical study of the freeway real-time traffic information website in Taiwan to illustrate the analysis pro- cesses of the model. The clickstream data collected from the web server were used for constructing a continuous time Markov chain (CTMC) model to repre-sent users' web browsing behavior under a sequence of information architecture design. A major quantitative measurement of performance, expected time dura-tion of user session (ETDUS), was estimated by the time-independent state probabilities obtained from CTMC model to show the results of menu-item se-quence usability testing. To cope with the uncertain varying demands of pre-trip travel information (PTTI), a common sequence of menu-item alternative was determined by regret criterion. The empirical results indicate that there is a lin-ear relationship between ETDUS and PTTI demands under a specific original as well as exchanged sequence of menu items for two text hyperlinks of real-time traffic information and travel time calculation shown on the relevant web pages. Although the appropriate sequence heavily depends on the variation of PTTI demands, it is found that the exchanged menu-item presentation sequence is bet-ter than the original one. |
| Vol. | 36 |
| No. | 2 |
| Page | 279 |
| Year | 2007 |
| Month | 6 |
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