3D Building Visualization Using LOD1 Level Lidar and Orthophoto Data (Case Study: Jalan Tambak Mayor Surabaya)

Surabaya is the second largest city in Indonesia after Jakarta, with a population of more than 2.8 million people. As the second largest city after Jakarta, of course Surabaya is classified as a city with a high population and building density. With this high level of building density, it is necessary to carry out good regional planning. Good regional planning is an important tool in creating cities and regions that are sustainable, environmentally friendly and provide a high quality of life for their residents. It also helps in addressing complex urban challenges and ensuring wise use of resources. Currently, various methods and technologies have developed that make it easier for the government to carry out regional planning. One method that can be used is to carry out 3D city modeling. Three-dimensional (3D) modeling is a technique used to create a digital model of an object or environment in three dimensions, using computer software capable of producing 3D images based on the data provided. Three-dimensional modeling for buildings with LOD1 level utilizes data obtained from field surveys, remote sensing and numerical modeling. Through this research, 3D city modeling was carried out using LiDAR data and aerial photography to analyze the condition of buildings in the Jalan Tambak Mayor area. This approach uses a 3D city model as the basis for analysis using ArcGISPro software. In this research, data updating will be conducted, which involves directly capturing aerial photographs in the field, as the existing aerial photograph data is from 2016 and needs to be renewed. Based on the resulting modeling, the results of 3-dimensional building modeling are shown on a map which is classified into 5 classes with a building height range between 0 - 46 meters.