Use of ultralight aircrafts for creating photoplans in land-use planning

Abstract

In order to determine whether the accuracy of photoplan or ORT10LT is better for land use plaining in the area were 80 points captured and verified. It was determined that the average geometrical exactness of photoplan 1,10 m.. ORT10LT average geometrical exactness 0,54 m.. The accuracy of photoplans made by ultralight aircrafts in such conditions allows surveyors to identify characteristic elements (roads, streets, railways, centra lines and outlines of water bodies, building boundaries, forest properties and landed properties boundaries, geodetic base points). It confirms that the photoplans can be used for the preparation of land-use planning projects, for forest inventory, for means of restrictions, for land planning and for decision making before giving the permissions. Although at the moment the orthophotoplans prepared for forest inventory are with high geometrical quality and characterises high resolution, their preparation process is very long (it takes mostly about one year and more from the adoption of decision to carry out the works till presentation of the product) and complicated [1]. Today the unmanned aerial vehicles, commonly known as a drones, are becoming more popular. At first this device was used for military purposes, but now the use of drone is very wide. The unmanned aerial vehicles helps to get an information about land cover and its characteristics, it is theory important for many diverse areas: in land-use planning, hidrotechnic, forestry, for the control of forest health, wetlands management, climate change [2]. The aim of analysis is to evaluate the geometrical accuracy of photoplans, which are made using ultralight aircrafts and to analyse the adaptation in land-use planning. Objectives of the study:1. to review the theoretical precenditions about photoplans use in land-use planning. 2. to evaluate the accuracy of photoplan of Kirmėliai village, Anykščiai district. 3. to identify the applicability of photoplans in land-use planning. For the analysis were used literary sources, spatial analysis, statistical and comparative analysis of data, methods of data aggregations and graphical representation. The data for analyses were collected performing field measurements in Kirmėliai village, Anykščiai district (picture 1.). The processing of captured points, photoplans and ORT10LT was made using ArcGIS Desktop and Excel programmes.