Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan
Transport networks are frequently exposed to geohazards, and losses can be observed frequently by notable disaster incidents such as landslides, earthquakes, and floods. Although losses due to natural disasters are frequently reported, limited attention is paid to assess the condition of strategic r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Geomatics, Natural Hazards & Risk |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/19475705.2021.1980440 |
| _version_ | 1819289336421548032 |
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| author | Karma Tempa Nimesh Chettri Komal Raj Aryal Dipendra Gautam |
| author_facet | Karma Tempa Nimesh Chettri Komal Raj Aryal Dipendra Gautam |
| author_sort | Karma Tempa |
| collection | DOAJ |
| description | Transport networks are frequently exposed to geohazards, and losses can be observed frequently by notable disaster incidents such as landslides, earthquakes, and floods. Although losses due to natural disasters are frequently reported, limited attention is paid to assess the condition of strategic road networks in the Himalayas. Thus, to fulfill this gap, this study performs condition assessment of Asian Highway AH-48 in Bhutan and develops a system to rate the performance level of road assets. The assessment is conducted along a 157.6 km stretch of AH-48. The sum of findings highlights that about 55% of the road assets along the AH-48 are highly vulnerable to geohazards. Drains are observed to be the most vulnerable, with 52% drains lying below the standard rating among the considered assets followed by retaining walls and pavement. Landslide vulnerability function for highways that are situated in mountain regions is developed using the newly proposed landslide intensity scale. The sum of findings highlights that the Himalayan roads will be affected mostly by landslides and the drainage system is the most affected road asset showing the least serviceability among the common road assets. |
| first_indexed | 2024-12-24T03:05:14Z |
| format | Article |
| id | doaj.art-6f390fded1b04f679712fcdd79587b64 |
| institution | Directory Open Access Journal |
| issn | 1947-5705 1947-5713 |
| language | English |
| last_indexed | 2024-12-24T03:05:14Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj.art-6f390fded1b04f679712fcdd79587b642022-12-21T17:18:02ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132021-01-011212904293010.1080/19475705.2021.19804401980440Geohazard vulnerability and condition assessment of the Asian highway AH-48 in BhutanKarma Tempa0Nimesh Chettri1Komal Raj Aryal2Dipendra Gautam3Civil Engineering Department, College of Science and Technology, Royal University of BhutanCivil Engineering Department, College of Science and Technology, Royal University of BhutanFaculty of Resilience, Rabdan Academy, The United Arab EmiratesStructure and Infrastructure Dynamics Laboratory, Interdisciplinary Research Institute for SustainabilityTransport networks are frequently exposed to geohazards, and losses can be observed frequently by notable disaster incidents such as landslides, earthquakes, and floods. Although losses due to natural disasters are frequently reported, limited attention is paid to assess the condition of strategic road networks in the Himalayas. Thus, to fulfill this gap, this study performs condition assessment of Asian Highway AH-48 in Bhutan and develops a system to rate the performance level of road assets. The assessment is conducted along a 157.6 km stretch of AH-48. The sum of findings highlights that about 55% of the road assets along the AH-48 are highly vulnerable to geohazards. Drains are observed to be the most vulnerable, with 52% drains lying below the standard rating among the considered assets followed by retaining walls and pavement. Landslide vulnerability function for highways that are situated in mountain regions is developed using the newly proposed landslide intensity scale. The sum of findings highlights that the Himalayan roads will be affected mostly by landslides and the drainage system is the most affected road asset showing the least serviceability among the common road assets.http://dx.doi.org/10.1080/19475705.2021.1980440road assetcondition assessmentgeohazardlandslide vulnerability |
| spellingShingle | Karma Tempa Nimesh Chettri Komal Raj Aryal Dipendra Gautam Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan Geomatics, Natural Hazards & Risk road asset condition assessment geohazard landslide vulnerability |
| title | Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan |
| title_full | Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan |
| title_fullStr | Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan |
| title_full_unstemmed | Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan |
| title_short | Geohazard vulnerability and condition assessment of the Asian highway AH-48 in Bhutan |
| title_sort | geohazard vulnerability and condition assessment of the asian highway ah 48 in bhutan |
| topic | road asset condition assessment geohazard landslide vulnerability |
| url | http://dx.doi.org/10.1080/19475705.2021.1980440 |
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