Computer-generated display system guidelines. Volume 2: Developing an evaluation plan : Electric Power Research Institute EPRI, Palo, Alto, California, USA, Report No EPRI NP-3701, V2, 1984, 108 pp.
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 150 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0003-6870
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✦ Synopsis
the route arrow were combined as described in the Manual of Uniform Traffic Con trol Devices, that is, no agreement between plane orientation and route direction was required. This produced si~s with concordance, discordance and orthogonal relationships between the plane orientation and the route direction. In addition, signs with the plane silhouette only (without a route arrow) were tested. Without prior instruction, the majority of the observers did not interpret the airport symbol as providing directional information without a route arrow. However, after instructions, the mean response time for signs of plane silhouettes alone (752 ms) was comparable with response times (765 ms) for signs with concordance between plane-silhouette orientation and route-arrow direction. Response times to signs with orthogonal and discordant relations between plane and arrow direction were significantly slower (834 ms and 865 ms, respectively). 17.4.19 (100251) Godwin, P. Manuals for health workers: Some problems of information design.