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dc.contributor.authorMackaness, William-
dc.contributor.authorBartie, Phil-
dc.contributor.authorEspeso, Candela Sanchez-Rodilla-
dc.contributor.editorDuckham, M-
dc.contributor.editorPebesma, E-
dc.contributor.editorStewart, K-
dc.contributor.editorFrank, AU-
dc.description.abstractInformation that enables an urban pedestrian to get from A to B can come in many forms though maps are generally preferred. However, given the cognitive load associated with map reading, and the desire to make discrete use of mobile technologies, there is increasing interest in systems that deliver wayfinding information solely by means of georeferenced spoken utterances that essentially leave the user "technology free." As a critical prior step, this paper examines the optimal delivery of such georeferenced text based instructions in anticipation of their spoken utterance. We identify the factors governing the content, location of instruction and frequency of delivery of text instructions such that a pedestrian can confidently follow a prescribed route, without reference to a map. We report on street level experiments in which pedestrians followed a sequence of text instructions delivered at key points along a set of routes. In examining instructions that are easy to follow, we compare landmark based instructions with street name based instructions. Results show that a landmark based approach is preferred because it is easier to assimilate (not because it is faster). Analysis also revealed that some degree of redundancy in the instructions is required in order to bring "comfort" to the user's progress. There still remains the challenge of modeling the saliency of landmarks, knowing what is the most efficient set of instructions, and how to vary the frequency of instruction according to the complexity of the route. The paper concludes by identifying a set of design heuristics useful in the design of text based instructions for wayfinding.en_UK
dc.publisherSpringer International Publishing-
dc.relationMackaness W, Bartie P & Espeso CS (2014) Understanding Information Requirements in "Text Only" Pedestrian Wayfinding Systems In: Duckham M, Pebesma E, Stewart K, Frank AU (ed.) Geographic Information Science: 8th International Conference, GIScience 2014, Vienna, Austria, September 24-26, 2014. Proceedings, Vienna: Springer International Publishing. GIScience 2014: 8th International Conference on Geographic Information Science, 24.9.2014 - 26.9.2014, Vienna, Austria, pp. 235-252.-
dc.relation.ispartofseriesLecture Notes in Computer Science, 8728-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.-
dc.titleUnderstanding Information Requirements in "Text Only" Pedestrian Wayfinding Systemsen_UK
dc.typeConference Paperen_UK
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.type.statusBook Chapter: publisher version-
dc.citation.btitleGeographic Information Science: 8th International Conference, GIScience 2014, Vienna, Austria, September 24-26, 2014. Proceedings-
dc.citation.conferencelocationVienna, Austria-
dc.citation.conferencenameGIScience 2014: 8th International Conference on Geographic Information Science-
dc.contributor.affiliationUniversity of Edinburgh-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.contributor.affiliationUniversity of Edinburgh-
Appears in Collections:Biological and Environmental Sciences Conference Papers and Proceedings

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