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ISPRS International Journal of Geo-Information, Volume 11, Issue 8

August 2022 - 43 articles

Cover Story: Digital maps are used daily by millions of users. Verifying the quality and consistency of route data is becoming more and more important. In this paper, we introduce a novel geospatial data analysis system that is based on road directionality. We investigate our Road Directionality Quality System (RDQS) using multiple map providers. Results from the experiments conducted show that our detection neural network can detect an arrow's position and direction in map images with >90% F1-Score. We then utilized this model to analyze map images in six different regions. Our findings show that our approach can reliably assess map quality and discover discrepancies in road directionality across different map providers. We report the percentage of discrepancies found between map providers using this approach in a proposed study area. View this paper
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Articles (43)

  • Review
  • Open Access
1 Citations
2,454 Views
15 Pages

The damage caused by disasters is increasing worldwide, with hundreds of thousands of deaths due to the occurrence of complex large-scale disasters such as the 2010 Haiti earthquake and the 2004 Indian tsunami. South Korea has also experienced human...

  • Article
  • Open Access
37 Citations
7,069 Views
15 Pages

Improving the Spatial Accessibility of Community-Level Healthcare Service toward the ‘15-Minute City’ Goal in China

  • Genxin Song,
  • Xinxin He,
  • Yunfeng Kong,
  • Ke Li,
  • Hongquan Song,
  • Shiyan Zhai and
  • Jingjing Luo

Background: The recent global COVID-19 pandemic serves as another reminder that people in different urban neighborhoods need equal access to basic medical services. This study aims to improve the spatial accessibility of healthcare services toward th...

  • Article
  • Open Access
1 Citations
2,897 Views
22 Pages

Optimal Routing of Wide Multi-Modal Energy and Infrastructure Corridors

  • Mehdi Salamati,
  • Xin Wang,
  • Jennifer Winter and
  • Hamidreza Zareipour

A multi-modal corridor accommodates multiple modes of energy and transportation infrastructure within the same right-of-way. The existing literature on corridor routing in raster space often focuses on one mode with no consideration of the width. Thi...

  • Article
  • Open Access
12 Citations
3,433 Views
20 Pages

Identification of Urban Functional Zones Based on the Spatial Specificity of Online Car-Hailing Traffic Cycle

  • Zhicheng Deng,
  • Xiangting You,
  • Zhaoyang Shi,
  • Hong Gao,
  • Xu Hu,
  • Zhaoyuan Yu and
  • Linwang Yuan

The study of urban functional zoning is not only important for analyzing urban spatial structure but also for optimizing urban management and promoting scientific urban planning. Different areas undertaking different urban functions correspond to dif...

  • Article
  • Open Access
9 Citations
4,321 Views
22 Pages

Food security has been one of the greatest global concerns facing the current complicated situation. Among these, the impact of climate change on agricultural production is dynamic over time and space, making it a major challenge to food security. Ta...

  • Article
  • Open Access
4 Citations
3,146 Views
18 Pages

Visualization of the spatial distribution pattern of transport accessibility and its changes can be crucial for understanding and assessing the performance of transportation systems. Compared to traditional maps representing geographic space, time ca...

  • Article
  • Open Access
3,936 Views
21 Pages

Nowadays, the market demand for taxis is still intense. However, there exist lots of issues affecting the healthy development of the taxi industry, such as an increasing difficulty in hailing taxis, detouring behavior etc., and especially, the low in...

  • Article
  • Open Access
13 Citations
5,478 Views
19 Pages

Quantile, equal interval, and natural breaks methods are widely used data classification methods in geospatial analysis and cartography. However, when applied to data with skewed distributions, they can only reveal the variations of either high frequ...

  • Article
  • Open Access
20 Citations
4,352 Views
22 Pages

Evaluating park equity can help guide the advancement of sustainable and equitable space policies. Previous studies have mainly considered accessibility when evaluating park equity while ignoring the selectivity and convenience of entering parks and...

  • Article
  • Open Access
14 Citations
7,644 Views
24 Pages

Explore the Correlation between Environmental Factors and the Spatial Distribution of Property Crime

  • Lijian Sun,
  • Guozhuang Zhang,
  • Dan Zhao,
  • Ling Ji,
  • Haiyan Gu,
  • Li Sun and
  • Xia Li

Comprehensively understanding the factors influencing crime is a prerequisite for preventing and combating crime. Although some studies have investigated the relationship between environmental factors and property crime, the interaction between facto...

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ISPRS Int. J. Geo-Inf. - ISSN 2220-9964