Implementation of Digital Terrain Models: a key tool for project development

The implementation of Digital Terrain Models (DTMs) has become an essential tool in various ngineering projects, especially in the areas of road and territorial planning. These models represent the terrain surface with high precision and are generated using advanced technologies such as LiDAR and drone photogrammetry, allowing detailed topographic information to be obtained more quickly and efficiently than traditional methods.

In Peru, recent research has demonstrated the great potential of LiDAR systems for generating DTMs. Studies such as those by De la Cruz (2019) and Carpio (2015) show that this technology achieves ccuracies compatible with 1:1000 scale cartography, making it ideal for feasibility studies and road project profiles. Furthermore, it stands out for optimizing costs and time compared to traditional techniques. Furthermore, studies such as those by Livaque (2022) have validated the use of drones in specific areas, highlighting the importance of having adequate support points to ensure model accuracy.

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At the international level, institutions such as the French National Geographic Institute have opted to automate the extraction of contour lines from high-resolution DTMs, thanks to the use of LiDAR sensors and advanced processing techniques. This automation reduces costs and improves cartographic quality. Similarly, research in Finland has explored methods for smoothing contours generated from LiDAR data, seeking a balance between technical accuracy and ease of map interpretation.

In conclusion, the implementation of Digital Terrain Models not only represents a technological advance in the capture and analysis of landforms, but is also a strategic tool for infrastructure design, urban planning, and land management. Their continuous improvement and adaptation to different nvironments guarantee reliable and accurate results, essential for decision-making in modern projects.

References:

Carpio (2015) Carpio Concha, Juan. “Generation of digital terrain models using LiDAR methodology applied in the jungle.” Undergraduate Thesis, Federico Villarreal National University, Lima, Peru. 2015.

De la Cruz (2019) De La Cruz Huamani, W. J. (2019). Analysis and implementation of topographic surveying using LiDAR for road projects, surface modeling, and validation of calculations with precise point positioning (PPP).

Livaque (2022) Idrogo Livaque, J. R. (2022). Digital terrain model (DTM) accuracy, considering the number of ground support points in a photogrammetric survey applied to the Pampa Grande – Tablazos highway, Chiclayo province.