Geographic Information Science: Visualization, visual methods, and the geoweb

Elwood, Sarah

doi:10.1177/0309132510374250

Cited by 69 publications

(53 citation statements)

References 52 publications

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“…Hybridized geographic/cartographic approaches have been vital in framing and theorizing the societal challenges related to emerging map practices and technologies (Leszczynski & Wilson, 2013;Ricker et al, 2014). Furthermore, critical geographic perspectives have identified historical limitations of user studies in cartography and are also shaping new ways for conducting such research (D'Ignazio & Klein, 2016;Elwood, 2010;Sheppard, 2005), including the UCD studies discussed below (Sack, 2013). Opportunities for hybridization continue to present themselves as geography and cartography further converge at the site of the mobile map.…”

Section: Geographymentioning

confidence: 99%

User studies in cartography: opportunities for empirical research on interactive maps and visualizations

Roth

Çöltekin

Delazari

et al. 2017

International Journal of Cartography

129

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The possibility of digital interactivity requires us to reenvision the map reader as the map user, and to address the perceptual, cognitive, cultural, and practical considerations that influence the user's experience with interactive maps and visualizations. In this article, we present an agenda for empirical research on this user and the interactive designs he or she employs. The research agenda is a result of a multi-stage discussion among international scholars facilitated by the International Cartographic Association that included an early round of position papers and two subsequent workshops to narrow into pressing themes and important research opportunities. The focus of our discussion is epistemological and reflects the wide interdisciplinary influences on user studies in cartography. The opportunities are presented as imperatives that cross basic research and user-centered design studies, and identify practical impediments to empirical research, emerging interdisciplinary recommendations to improve user studies, and key research needs specific to the study of interactive maps and visualizations.

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Section: Geographymentioning

confidence: 99%

User studies in cartography: opportunities for empirical research on interactive maps and visualizations

Roth

Çöltekin

Delazari

et al. 2017

International Journal of Cartography

129

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“…VGI is often referred to as an outcome of 'the rise of the amateur', a movement heralded for its promise to afford opportunities to collect data from demographically varied and geographically dispersed perspectives [15], [18], [19], [21], [22]. VGI can be used to fill in areas on a map that are lacking information and can be used to complement existing data collection methods [23].…”

Section: Volunteered Geographic Informationmentioning

confidence: 99%

Volunteered Drone Imagery: Challenges and constraints to the development of an open shared image repository

Johnson¹,

Ricker²,

Harrison³

2017

Proceedings of the 50th Hawaii International Conference on System Sciences (2017)

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“…To help guide the design activity, we used scenario-based design [34,155] with three scenarios; each scenario described a situation where ALTs could be helpful for evaluating the accessibility of the built environment. Our scenarios are based on GIS literature [13,58,147] that taxonomize location-based applications into three main areas: geographical exploration, search, and navigation. The scenarios were then adapted to an accessibility context.…”

Section: Part 2: Participatory Designmentioning

confidence: 99%

Scalable methods to collect and visualize sidewalk accessibility data for people with mobility impairments

Hara

2015

SIGACCESS Access. Comput.

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Poorly maintained sidewalks pose considerable accessibility challenges for people with mobility impairments. Despite comprehensive civil rights legislation of Americans with Disabilities Act, many city streets and sidewalks in the U.S. remain inaccessible.The problem is not just that sidewalk accessibility fundamentally affects where and how people travel in cities, but also that there are few, if any, mechanisms to determine accessible areas of a city a priori.To address this problem, my Ph.D. dissertation introduces and evaluates new scalable methods for collecting data about street-level accessibility using a combination of crowdsourcing, automated methods, and Google Street View (GSV). My dissertation has four research threads. First, we conduct a formative interview study to establish a better understanding of how people with mobility impairments currently assess accessibility in the built environment and the role of emerging location-based technologies therein. The study uncovers the existing methods for assessing accessibility of physical environment and identify useful features of future assistive technologies. Second, we develop and evaluate scalable crowdsourced accessibility data collection methods. We show that paid crowd workers recruited from an online labor marketplace can find and label accessibility attributes in GSV with accuracy of 81%. This accuracy improves to 93% with quality control mechanisms such as majority vote. Third, we design a system that combines crowdsourcing and automated methods to increase data collection efficiency. Our work shows that by combining crowdsourcing and automated methods, we can increase data collection efficiency by 13% without sacrificing accuracy. Fourth, we develop and deploy a web tool that lets volunteers to help us collect the street-level accessibility data from Washington, D.C.As of writing this dissertation, we have collected the accessibility data from 20% of the streets in D.C. We conduct a preliminary evaluation on how the said web tool is used.Finally, we implement proof-of-concept accessibility-aware applications with accessibility data collected with the help of volunteers.My dissertation contributes to the accessibility, computer science, and HCI communities by: (i) extending the knowledge of how people with mobility impairments interact with technology to navigate in cities; (ii) introducing the first work that demonstrates that GSV is a viable source for learning about the accessibility of the physical world; (iii) introducing the first method that combines crowdsourcing and automated methods to remotely collect accessibility information; (iv) deploying interactive web tools that allow volunteers to help populate the largest dataset about street-level accessibility of the world; and (v) demonstrating accessibility-aware applications that empower people with mobility impairments.

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Geographic Information Science: Visualization, visual methods, and the geoweb

Cited by 69 publications

References 52 publications

User studies in cartography: opportunities for empirical research on interactive maps and visualizations

User studies in cartography: opportunities for empirical research on interactive maps and visualizations

Volunteered Drone Imagery: Challenges and constraints to the development of an open shared image repository

Scalable methods to collect and visualize sidewalk accessibility data for people with mobility impairments

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