Reconstruction of Illumination Devices at the Moscow Metro

Novakovsky, Leonid G.; Feofanov, Sergei A.

doi:10.33383/2018-035

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To calculate the volumes of each prism, bounded by the planes of two inclined triangles above and below, the well-known formulas are used (Zhilin et al, 2005;Novakovsky and Permyakov, 2019)…”

Section: Methodsmentioning

confidence: 99%

Geodesy and Cartography

Trevoho,

Ostrovskiy,

Kolb

et al. 2021

View full text Add to dashboard Cite

This work aims to study the vertical planning method for the terrain area as part of the process of construction geodetic support. Such planning will be carried out based on the aerial survey data from UAVs, which allow the creation of a high-quality digital elevation model (DEM) with sufficient node density for reliable surface terrain modelling. During the study, we test the hypothesis of the possibility of using archival aerial photographs from UAVs to model the terrain of the local area. Both the actual achievable accuracy of terrain modeling in the course of photogrammetric processing of archived aerial photographs, and methods for creating a polygonal terrain model using input spatial data in the form of clouds of 3D points of a given density require analysis. To do this, we will perform comparisons of the accuracy of calculating earth masses, carried out based on the digital triangulation elevation models (TIN). These models were based on different algorithms for creating Delaunay triangulation with different degrees of 3D point sparsity. We proposed to use sparsity of dense clouds of points representing the surface of the terrain and which were obtained by the photogrammetric method. Computer terrain modelling and calculation of vertical planning parameters were performed by us for the area with flat terrain at angles up to 3.5 degrees. We evaluated the potential of archived UAV aerial photographs and algorithms for creating Delaunay triangulation at different densities of its nodes for calculating the volumes of earth masses.

show abstract

Section: Methodsmentioning

confidence: 99%

Geodesy and Cartography

Trevoho,

Ostrovskiy,

Kolb

et al. 2021

View full text Add to dashboard Cite

show abstract

Effects of Luminaire Angle on Illumination Performance in Tunnel Lighting

Cengiz

2019

Balkan Journal of Electrical and Computer Engineering

View full text Add to dashboard Cite

In this study, the effect of luminaire angle on the path parameters of tunnel lighting was investigated. Tunnel illumination was performed with a simulation program adapted to CIE 88-2004 standards. The lighting performance parameters were compared while the angle of the luminaire was 0°, 5°, 10° and 15°. According to the simulation results, the luminaire angle is 0°and the highest efficiency is reached. As the luminaire angle increased, the yield decreased in direct proportion to the angle. The highest lighting efficiency was observed at 0° and the lowest illumination efficiency was observed at 15°. This problem can be overcome by using a higher power lamp in angled lighting. As a result, it is revealed that angled lighting should be avoided in highway and tunnel lighting.

show abstract

Reconstruction of Illumination Devices at the Moscow Metro

Cited by 2 publications

References 4 publications

Geodesy and Cartography

Geodesy and Cartography

Effects of Luminaire Angle on Illumination Performance in Tunnel Lighting

Contact Info

Product

Resources

About