Techniques for Updating Pedestrian Network Data Including Facilities and Obstructions Information for Transportation of Vulnerable People

Park, Seula; Bang, Yoonsik; Yu, Kiyun

doi:10.3390/s150924466

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Keyword analysis can support the identification of the main areas of application since they are used by the authors to help indexers, search sources and consequently readers to find relevant papers; they generally represent the content of the manuscript and are quite specific to subject's field or subfield. From the analysis of the keywords of the papers of the review (Figure 2), conducted through pivot tables, beyond the terms included in the search strategy (GIS, VGI, PPGIS, Crowdsourcing and Transport), the words "Accessibility" [28][29][30][31][32][33], Smartphone [34][35][36][37][38] and "Activity Space" [39][40][41] emerge. In particular, GIS are fundamental to visualize the impact of transport solutions in terms of accessibility, and there is a growing literature on transport studies related to this topic [42][43][44][45].…”

Section: Discussionmentioning

confidence: 99%

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Giuffrida

Pira

Inturri

et al. 2019

IJGI

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Transport decision-making problems are typically spatially based and involve a set of feasible alternatives with multiple evaluation criteria. Besides, transport decisions affect citizens’ quality of life, as well as specific interests of general stakeholders (e.g., transport companies), thus needing a participatory approach to decision-making. Geographic Information Systems (GIS) have the ability to visualize spatial data and represent the impact of location based transport alternatives, thus helping experts to conduct robust assessments. Moreover, with the recent diffusion of Volunteered Geographic Information (VGI) and development of Public Participatory GIS (PPGIS) platforms, the process can be enhanced thanks to the collection of a large amount of updated spatial data and the achievement of an active community participation. In this study, we provide an overview based on a structured literature review of the use of VGI and PPGIS in transport studies, exploring the fields of application, role played by GIS, level of public involvement and decision stage at which they are applied. From the overview’s results, we propose a general framework for the evaluation of transport alternatives using GIS from a multiple stakeholder point of view; the main conclusion is the usefulness of the integration between Public Participation, GIS and quantitative evaluation methods, in particular Multi Criteria Decision Analysis, in order to foster technically sound and shared decisions.

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Section: Discussionmentioning

confidence: 99%

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Giuffrida

Pira

Inturri

et al. 2019

IJGI

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“…as well as footpath obstacles (poles, boom barriers, etc.) (Working Group on Mobility Aids for the Visually Impaired and Blind, 1986; Park et al , 2015). Recent research integrates open sourced data to overcome matters of cost and availability.…”

Section: Introductionmentioning

confidence: 99%

Independent mobility for persons with VIB using GIS

Zimmermann-Janschitz

Landauer

Drexel³

et al. 2021

JET

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Purpose The study aims to promote independent mobility for persons with visual impairment or legal blindness (VIB) by developing a Web-based wayfinding application using geographic information systems (GIS). While the literature mainly focuses on technical devices presenting results for wayfinding, a lack of integration of user needs is identified. The inclusive, participative developed application offers step-by-step directions for pre-trip planning through an accessible user interface. Design/methodology/approach The paper presents a semi-automated approach to extract a pedestrian routing network data set based on open government data and field survey. User profiles calculate different routes using a weighting scheme for landmarks, orientation hints, infrastructure of crossings and sidewalks. The adoption of ArcGIS Web AppBuilder widgets allows access of the user interface additionally through keyboard-only navigation and therefore screen-reader capability. Findings GIS offers a powerful tool to design network analysis for persons with VIB. The routing algorithm accesses different user profiles, returning individualized turn-by-turn directions. The complex set of attributes, including shorelines, landmarks and barriers, can be integrated by semi-automated processes. Practical implications The paper illustrates the benefit of GIS applications for wayfinding of persons with VIB to raise self-determination and independence. Originality/value A ubiquitous pedestrian sidewalk network for a medium-size city comprises a novelty, as research has mainly focused on small areas. The integration of shorelines next to a various number of hints, landmarks and potential barriers through semi-automated processes allows reproducibility and transferability of the model to other cities.

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“…Massive on-vehicle positioning trajectories have the characteristics of large data, multiple data sources, and heterogeneous structures. The use of VGI (volunteered geography information)-based trajectories, such as those collected by smart phones [4,5], and smart devices installed in vehicles [6] or held by pedestrians [7], to update road data has recently achieved substantial results.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method of Missing Road Generation in City Blocks Based on Big Mobile Navigation Trajectory Data

Wu³

2019

IJGI

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With the rapid development of cities, the geographic information of urban blocks is also changing rapidly. However, traditional methods of updating road data cannot keep up with this development because they require a high level of professional expertise for operation and are very time-consuming. In this paper, we develop a novel method for extracting missing roadways by reconstructing the topology of the roads from big mobile navigation trajectory data. The three main steps include filtering of original navigation trajectory data, extracting the road centerline from navigation points, and establishing the topology of existing roads. First, data from pedestrians and drivers on existing roads were deleted from the raw data. Second, the centerlines of city block roads were extracted using the RSC (ring-stepping clustering) method proposed herein. Finally, the topologies of missing roads and the connections between missing and existing roads were built. A complex urban block with an area of 5.76 square kilometers was selected as the case study area. The validity of the proposed method was verified using a dataset consisting of five days of mobile navigation trajectory data. The experimental results showed that the average absolute error of the length of the generated centerlines was 1.84 m. Comparative analysis with other existing road extraction methods showed that the F-score performance of the proposed method was much better than previous methods.

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Techniques for Updating Pedestrian Network Data Including Facilities and Obstructions Information for Transportation of Vulnerable People

Cited by 6 publications

References 14 publications

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making

Independent mobility for persons with VIB using GIS

A Novel Method of Missing Road Generation in City Blocks Based on Big Mobile Navigation Trajectory Data

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