Sustainable Conservation Technology as a Strategy for Preserving and Strengthening the Image of Semarang Old City

Doctoral Program of Architecture and Urban Engineering, Faculty of Engineering, Diponegoro University, Semarang, Indonesia

^* Corresponding author: yudhabd@gmail.com

Abstract

This study examines how sustainable conservation technologies connect with Kevin Lynch's city image theory in preserving Semarang Old City as a representation of its historical identity. The district, consisting of 316 buildings—127 of them cultural heritage—has strong historical and visual significance as a living heritage area. Using a qualitative descriptive method and case studies, the research analyzes how conservation technologies such as digital recording (3D scanning and photogrammetry), heritage-focused BIM, smart sensors, green retrofitting, and AR/VR correspond to Lynch's five image elements: paths, edges, districts, nodes, and landmarks. The findings show that digital documentation and GIS strengthen paths by producing detailed corridor maps that support visitor navigation. Smart sensors and drone mapping reinforce edges by monitoring environmental quality at boundary areas. BIM and green retrofit strategies support districts through sustainable adaptive reuse. AR/VR technologies enhance nodes as centers of public activity, while 3D scanning and photogrammetry help maintain the authenticity of major landmarks like Blenduk Church and the Marba Building. Overall, the use of sustainable conservation technologies supports both physical preservation and the enhancement of Semarang Old City's imageability and competitiveness as a key heritage destination.