Using Digital Photogrammetry to Create Large-Scale Topographic Maps and Plans in Uzbekistan

Abstract

The rapid development of digital photogrammetry in recent years has led to the revision of the outdated and introduction of innovative technologies in the creation of basic photogrammetric products, such as aerial photogrammetric triangulation, digital orthophoto, digital topographic maps, and plans, digital elevation models. Digital methods for creating topographic maps and plans today, being the most highly productive and operational methods, primarily ensure the automation of work, the quality, reliability of the products created, and the objectivity of information. The paper discusses the process of creating a topographic plan of 1: 2000 scale using digital photogrammetric methods for the newly built district in Tashkent – “Yangi Khayot” whose area is 7000 hectares. For this purpose, aerial photography was carried out by an UAV Geoscan 201 at a scale of 1: 1000 with a digital camera Sony DSC-RX1 with a forward overlap of aerial photographs of 70% and a lateral overlap of 50%. The height of the photographing flight was 400 meters.