Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing

In this study, we measured the in situ international roughness index (IRI) for first-degree roads spanning more than 1300 km in East Azerbaijan Province, Iran, using a quarter car (QC). Since road quality mapping with in situ measurements is a costly and time-consuming task, we also developed new eq...

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Main Authors: Sadra Karimzadeh, Masashi Matsuoka
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/6/2251
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author Sadra Karimzadeh
Masashi Matsuoka
author_facet Sadra Karimzadeh
Masashi Matsuoka
author_sort Sadra Karimzadeh
collection DOAJ
description In this study, we measured the in situ international roughness index (IRI) for first-degree roads spanning more than 1300 km in East Azerbaijan Province, Iran, using a quarter car (QC). Since road quality mapping with in situ measurements is a costly and time-consuming task, we also developed new equations for constructing a road quality proxy map (RQPM) using discriminant analysis and multispectral information from high-resolution Sentinel-2 images, which we calibrated using the in situ data on the basis of geographic information system (GIS) data. The developed equations using optimum index factor (OIF) and norm R provide a valuable tool for creating proxy maps and mitigating hazards at the network scale, not only for primary roads but also for secondary roads, and for reducing the costs of road quality monitoring. The overall accuracy and kappa coefficient of the norm R equation for road classification in East Azerbaijan province are 65.0% and 0.59, respectively.
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spelling doaj.art-32ba3d00690940d69101dbb26baf021b2023-11-21T11:44:19ZengMDPI AGSensors1424-82202021-03-01216225110.3390/s21062251Development of Nationwide Road Quality Map: Remote Sensing Meets Field SensingSadra Karimzadeh0Masashi Matsuoka1Department of Remote Sensing and GIS, University of Tabriz, Tabriz 5166616471, IranDepartment of Architecture and Building Engineering, Tokyo Institute of Technology, 4259-G3-2 Nagatsuta, Midori-ku, Yokohama 226-8502, JapanIn this study, we measured the in situ international roughness index (IRI) for first-degree roads spanning more than 1300 km in East Azerbaijan Province, Iran, using a quarter car (QC). Since road quality mapping with in situ measurements is a costly and time-consuming task, we also developed new equations for constructing a road quality proxy map (RQPM) using discriminant analysis and multispectral information from high-resolution Sentinel-2 images, which we calibrated using the in situ data on the basis of geographic information system (GIS) data. The developed equations using optimum index factor (OIF) and norm R provide a valuable tool for creating proxy maps and mitigating hazards at the network scale, not only for primary roads but also for secondary roads, and for reducing the costs of road quality monitoring. The overall accuracy and kappa coefficient of the norm R equation for road classification in East Azerbaijan province are 65.0% and 0.59, respectively.https://www.mdpi.com/1424-8220/21/6/2251international roughness indexroad qualityremote sensingSentinel-2
spellingShingle Sadra Karimzadeh
Masashi Matsuoka
Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
Sensors
international roughness index
road quality
remote sensing
Sentinel-2
title Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
title_full Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
title_fullStr Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
title_full_unstemmed Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
title_short Development of Nationwide Road Quality Map: Remote Sensing Meets Field Sensing
title_sort development of nationwide road quality map remote sensing meets field sensing
topic international roughness index
road quality
remote sensing
Sentinel-2
url https://www.mdpi.com/1424-8220/21/6/2251
work_keys_str_mv AT sadrakarimzadeh developmentofnationwideroadqualitymapremotesensingmeetsfieldsensing
AT masashimatsuoka developmentofnationwideroadqualitymapremotesensingmeetsfieldsensing