fa باستان‌سنجی و اصالت‌سنجی اشیا موزه‌ای و آثار تاریخی- فرهنگی. Archaeometry and authenticity assessment of museum objects and historical-cultural properties. پژوهشي Research, Original, Regular <div style="text-align: justify;"><span style="font-size:11pt"><span style="line-height:110%"><span style="font-family:&quot;Calibri&quot;,sans-serif"><span style="font-size:12.0pt"><span style="line-height:110%"><span style="font-family:&quot;Garamond&quot;,serif">The conservation of structural and historical integrity in historic cities is a major challenge due to urban growth. Changes in integrity and the loss of authentic historical context have led to a decline in the city&#39;s historical identity. This study looks at integrity within the historic areas of Qazvin, focusing on the Rāh-Rey, Khandaq-Bār, and Khīābān neighborhoods. We developed key evaluation indicators based on conservation principles and theories, applying them at both neighborhood and broader levels. The methodology included archival research, historical maps and images from 1918 to today, and field surveys to track spatial and structural changes. The findings show that changes in urban structure have disrupted historical identity and continuity, especially along key historical pathways. The study concludes that strengthening structural integrity and protecting authentic values are vital for balancing heritage preservation with ongoing urban development.</span></span></span></span></span></span></div> Qazvin, Historic Urban Fabric, Integrity, Historical-Structural Integrity, Continuity. 102 121 http://journal.richt.ir/kcr/browse.php?a_code=A-10-155-7&slc_lang=fa&sid=1 Fatemeh Farhani فاطمه فرحانی Farhanii.fatemeh@gmail.com No Master of Architectural and Urban Heritage Conservation, Faculty of Architecture and Urbanism, Imam Khomeini International University, Qazvin, Iran. کارشناسی ارشد مرمت و احیاء بناها و بافت‌های تاریخی، دانشکده معماری و شهرسازی، دانشگاه بین‌المللی امام خمینی(ره)، قزوین، ایران. Reza Rahimnia رضا رحیم‌نیا : Rahimnia@Arc.ikiu.ac.ir Yes Assistant Professor, Faculty of Architecture and Urbanism, Imam Khomeini International University, Qazvin, Iran. استادیار گروه مرمت و احیاء بناهای تاریخی، دانشکده معماری و شهرسازی، دانشگاه بین‌المللی امام خمینی(ره)، قزوین، ایران.