The Digital Surface Model (DSM) shows the Earth's surface including all objects that are present on it at the time of imaging, whether they are natural or man-made. In the model you can see not only the terrain and buildings, but also vegetation or cars parked in the streets. DSM is created by autocorrelation of image points from aerial surveying images.
The resolution of the DSM is 0.25 m. It is used as a basis for updating the 3D model of the development and as a very detailed basis for analysis and visualization. Its advantage is not only great detail, but also frequent updates. It is created once a year together with the update of the extra-vegetation orthophotomap. It has been part of the 3D data since 2015.

Sample of Digital Surface Model