<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Modern Transportation Systems and Technologies</journal-id><journal-title-group><journal-title xml:lang="en">Modern Transportation Systems and Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Инновационные транспортные системы и технологии</trans-title></trans-title-group></journal-title-group><issn publication-format="electronic">2782-3733</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">705352</article-id><article-id pub-id-type="doi">10.17816/transsyst705352</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Reviews</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Обзоры</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Assessment of road network structure, design standards and pavement condition within a road asset management system (RAMS): the case of Tajikistan</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка структуры дорожной сети, проектных норм и состояния дорожного покрытия в рамках системы управления активами автомобильных дорог: пример Таджикистана</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9817-3633</contrib-id><name-alternatives><name xml:lang="en"><surname>Mirzozoda</surname><given-names>Sukhrob B.</given-names></name><name xml:lang="ru"><surname>Мирзозода</surname><given-names>Сукроб Бегмат</given-names></name></name-alternatives><address><country country="TJ">Tajikistan</country></address><bio xml:lang="en"><p>Cand. Sci. (Engineering), associate professor</p></bio><bio xml:lang="ru"><p>канд. техн. наук, доцент</p></bio><email>sukhrob63@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Tajik technical university named after academician M.S. Osimi</institution></aff><aff><institution xml:lang="ru">Таджикский технический университет имени академика M.С. Oсими</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-07-06" publication-format="electronic"><day>06</day><month>07</month><year>2026</year></pub-date><volume>12</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>157</fpage><lpage>171</lpage><history><date date-type="received" iso-8601-date="2026-04-02"><day>02</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-04-02"><day>02</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Mirzozoda S.B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Мирзозода С.Б.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Mirzozoda S.B.</copyright-holder><copyright-holder xml:lang="ru">Мирзозода С.Б.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://transsyst.ru/transj/article/view/705352">https://transsyst.ru/transj/article/view/705352</self-uri><abstract xml:lang="en"><p>Road infrastructure plays a crucial role in ensuring territorial accessibility and economic connectivity in mountainous countries. In the Republic of Tajikistan, a substantial part of the road network was constructed under historical design assumptions that no longer meet current traffic demand and operating conditions. This paper assesses of the road network structure of Tajikistan based on official statistical data, design standards, and pavement condition indicators. The analysis covers road classification, surface types, design categories, and the current technical condition of roads. The results show that local roads account for the largest share of the public network and are characterized by lower-grade surfaces and a high proportion of sections in poor condition. This leads to accelerated pavement deterioration, lower travel speeds, and increased vehicle operating costs. The study demonstrates that static design standards alone is insufficient for sustainable road network performance. The findings substantiate the need to implement a Road Asset Management System to support evidence-based prioritization of maintenance and rehabilitation under budget constraints.</p></abstract><trans-abstract xml:lang="ru"><p>Дорожная инфраструктура — ключевой фактор территориальной доступности и экономической связанности в горных странах. В Таджикистане значительная часть дорог была построена по проектным решениям прошлых лет, которые сегодня уже не отвечают возросшей интенсивности движения и изменившимся условиям эксплуатации. В работе проведена оценка структуры дорожной сети Таджикистана с опорой на официальную статистику, действующие проектные нормы и показатели состояния покрытия. В фокусе анализа — классификация дорог, типы покрытий, проектные категории и фактическое техническое состояние сети. Выявлено, что основу сети общего пользования составляют дороги местного значения: для них типичны покрытия низших категорий и существенная доля участков в неудовлетворительном состоянии. Такая ситуация ускоряет износ дорожного полотна, снижает скорости движения и ведёт к росту эксплуатационных расходов на содержание транспорта. Результаты исследования показывают, что полагаться только на устоявшиеся проектные нормы недостаточно для поддержания функционирования дорожной сети. Сделанные выводы подтверждают целесообразность внедрения системы управления активами автомобильных дорог: она поможет выстраивать обоснованную приоритетность ремонтных и обслуживающих мероприятий даже при ограниченном финансировании.</p></trans-abstract><kwd-group xml:lang="en"><kwd>road infrastructure</kwd><kwd>pavement condition</kwd><kwd>design standards</kwd><kwd>vehicle operating costs</kwd><kwd>asset management</kwd><kwd>mountainous roads</kwd><kwd>Tajikistan</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дорожная инфраструктура</kwd><kwd>состояние дорожного покрытия</kwd><kwd>проектные нормы</kwd><kwd>эксплуатационные расходы</kwd><kwd>управление активами</kwd><kwd>горные дороги</kwd><kwd>Таджикистан</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Asian Development Bank. Tajikistan transport sector assessment [Internet]. Manila: Asian Development Bank; 2021 Accesed: 2026 Mar 28. Available from: https://www.adb.org/sites/default/files/institutional-document/755636/tajikistan-transport-sector-assessment.pdf</mixed-citation><mixed-citation xml:lang="ru">Asian Development Bank. Tajikistan transport sector assessment [Internet]. Manila: Asian Development Bank; 2021 Дата обращения: 28.03.2026. Режим доступа: https://www.adb.org/sites/default/files/institutional-document/755636/tajikistan-transport-sector-assessment.pdf</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">World Bank. Integrating climate change into road asset management: technical report 2017 [Internet]. Washington, DC: World Bank; 2017 Accesed: 2026 Mar 28. Available from: https://documents.worldbank.org/en/publication/documents-reports/documentdetail/981831493278252684</mixed-citation><mixed-citation xml:lang="ru">World Bank. Integrating climate change into road asset management: technical report 2017 [Internet]. Washington, DC: World Bank; 2017 Дата обращения: 28.03.2026. Режим доступа: https://documents.worldbank.org/en/publication/documents-reports/documentdetail/981831493278252684</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Schutte IC. A user guide to road management tools [Internet]. Washington, DC: World Bank; 2008 Accesed: 2026 Mar 28. Available from: https://documents.worldbank.org/en/publication/documents-reports/documentdetail/151881468191969712</mixed-citation><mixed-citation xml:lang="ru">Schutte IC. A user guide to road management tools [Internet]. Washington, DC: World Bank; 2008 Дата обращения: 28.03.2026. Режим доступа: https://documents.worldbank.org/en/publication/documents-reports/documentdetail/151881468191969712</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">PIARC. Asset management manual [Internet]. Paris: World Road Association; 2019 Accesed: 2026 Mar 28. Available from: https://road-asset.piarc.org/en</mixed-citation><mixed-citation xml:lang="ru">PIARC. Asset management manual [Internet]. Paris: World Road Association; 2019 Дата обращения: 28.03.2026. Режим доступа: https://road-asset.piarc.org/en</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><mixed-citation>International Transport Forum. Policies to extend the life of road assets. Paris: OECD Publishing; 2018. doi: 10.1787/a5ed475a-en</mixed-citation></ref><ref id="B6"><label>6.</label><citation-alternatives><mixed-citation xml:lang="en">Republic of Tajikistan. Law of the Republic of Tajikistan on highways and road activities No. 47 [Internet]. Dushanbe; 2002 Accesed: 2026 Mar 28. Available from: https://cis-legislation.com/document.fwx?rgn=2216</mixed-citation><mixed-citation xml:lang="ru">Republic of Tajikistan. Law of the Republic of Tajikistan on highways and road activities No. 47 [Internet]. Dushanbe; 2002 Дата обращения: 28.03.2026. Режим доступа: https://cis-legislation.com/document.fwx?rgn=2216</mixed-citation></citation-alternatives></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Ministry of Transport of the Republic of Tajikistan. State register of public roads. Dushanbe: Ministry of Transport; 2020.</mixed-citation><mixed-citation xml:lang="ru">Ministry of Transport of the Republic of Tajikistan. State register of public roads. Dushanbe: Ministry of Transport, 2020.</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">SNiP 2.05.02-85*. Automobile roads. Moscow: Stroyizdat; 1985.</mixed-citation><mixed-citation xml:lang="ru">СНиП 2.05.02-85*. Автомобильные дороги. М.: Стройиздат, 1985.</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><citation-alternatives><mixed-citation xml:lang="en">Loprencipe G, Zoccali P. Use of the International Roughness Index (IRI) for road network management. Journal of Transportation Engineering, Part B: Pavements. 2017;143(1):04016020. doi: 10.1061/JPEODX.0000089</mixed-citation><mixed-citation xml:lang="ru">Loprencipe G., Zoccali P. Use of the International Roughness Index (IRI) for road network management // Journal of Transportation Engineering, Part B: Pavements. 2017;143(1):04016020. doi:10.1061/JPEODX.0000089</mixed-citation></citation-alternatives></ref><ref id="B10"><label>10.</label><citation-alternatives><mixed-citation xml:lang="en">Setyawan A, Nainggolan J, Budiarto A. Predicting the remaining service life of road using pavement condition index. Procedia Engineering. 2015;125:417–423. doi: 10.1016/j.proeng.2015.11.108</mixed-citation><mixed-citation xml:lang="ru">Setyawan A., Nainggolan J., Budiarto A. Predicting the remaining service life of road using pavement condition index // Procedia Engineering. 2015. Vol. 125. P. 417–423. doi: 10.1016/j.proeng.2015.11.108</mixed-citation></citation-alternatives></ref><ref id="B11"><label>11.</label><mixed-citation>Harral C, Faiz A. Road deterioration in developing countries: causes and remedies. Washington: World Bank; 1988.</mixed-citation></ref><ref id="B12"><label>12.</label><citation-alternatives><mixed-citation xml:lang="en">Bennett CR, Greenwood ID. Modelling road user and environmental effects. Vol. 7. Highway Development and Management Series. Paris: World Road Association; 2001. Available from: https://transport-links.com/wp-content/uploads/2019/11/1_760_PA3759_2001.pdf</mixed-citation><mixed-citation xml:lang="ru">Bennett CR, Greenwood ID. Modelling road user and environmental effects. Vol. 7. Highway Development and Management Series. Paris: World Road Association; 2001. Дата обращения: 28.03.2026. Режим доступа: https://transport-links.com/wp-content/uploads/2019/11/1_760_PA3759_2001.pdf</mixed-citation></citation-alternatives></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Mirzozoda SB, Sodikov JI. Assessment of the economic efficiency of introducing digital technologies in the road sector of Tajikistan. Scientific Journal of Transport Vehicles and Roads of Tashkent State Transport University. Tashkent, 2025;4:135–150. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Мирзозода С.Б., Содиков Ж.И. Оценка экономической эффективности внедрения цифровых технологий в дорожной отрасли Таджикистана // Научный журнал транспортных средств и дорог Ташкентского государственного транспортного университета. 2025. № 4. С. 135–150.</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><citation-alternatives><mixed-citation xml:lang="en">OECD. Infrastructure governance [Internet]. Paris: OECD; 2015 Accesed: 2026 Mar 28. Available from: https://one.oecd.org/document/GOV/PGC%282015%2912/en/pdf</mixed-citation><mixed-citation xml:lang="ru">OECD. Infrastructure governance [Internet]. Paris: OECD; 2015 Дата обращения: 28.03.2026. Режим доступа: https://one.oecd.org/document/GOV/PGC%282015%2912/en/pdf</mixed-citation></citation-alternatives></ref><ref id="B15"><label>15.</label><citation-alternatives><mixed-citation xml:lang="en">de la Garza JM, Akyildiz S, Bish DR, Krueger DA. Network-level optimization of pavement maintenance renewal strategies. Advanced Engineering Informatics. 2011;25(4):699–712. doi: 10.1016/j.aei.2011.08.002</mixed-citation><mixed-citation xml:lang="ru">de la Garza JM, Akyildiz S, Bish DR, Krueger DA. Network-level optimization of pavement maintenance renewal strategies. Advanced Engineering Informatics. 2011. Vol. 25, N. 4. P. 699–712. doi: 10.1016/j.aei.2011.08.002</mixed-citation></citation-alternatives></ref><ref id="B16"><label>16.</label><citation-alternatives><mixed-citation xml:lang="en">Asian Development Bank. Road Asset Management Systems and Performance-Based Road Maintenance Contracts in the CAREC Region [Internet]. Manila: Asian Development Bank; 2021 Accesed: 2026 Mar 28. Available from: https://www.adb.org/sites/default/files/publication/754791/road-asset-management-systems-maintenance-contracts-carec_0.pdf</mixed-citation><mixed-citation xml:lang="ru">Asian Development Bank. Road Asset Management Systems and Performance-Based Road Maintenance Contracts in the CAREC Region [Internet]. Manila: Asian Development Bank; 2021 Дата обращения: 28.03.2026. Режим доступа: https://www.adb.org/sites/default/files/publication/754791/road-asset-management-systems-maintenance-contracts-carec_0.pdf</mixed-citation></citation-alternatives></ref><ref id="B17"><label>17.</label><citation-alternatives><mixed-citation xml:lang="en">Mirzozoda SB, Krasikov OA, Karimov BB. Road asset management system (RAMS). Dushanbe: Irfon; 2023. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Мирзозода С.Б., Красиков О.А., Каримов Б.Б. Система управления дорожными активами (СУДА): монография. Душанбе: Ирфон, 2023.</mixed-citation></citation-alternatives></ref><ref id="B18"><label>18.</label><citation-alternatives><mixed-citation xml:lang="en">Mirzozoda SB, Mirzoev FS. Development of a road asset management system (RAMS) based on digital technologies and artificial intelligence. Polytechnic Bulletin, Series: Engineering Research. 2025;4(72)2025:106–114. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Мирзозода С.Б., Мирзоев Ф.С. Развитие системы управления дорожными активами (СУДА) на основе цифровых технологий и искусственного интеллекта // Политехнический вестник, Серия: Инженерные исследования. Душанбе: ТТУ, 2025. № 4(72). С. 106–114.</mixed-citation></citation-alternatives></ref></ref-list></back></article>
