Desarrollo de una herramienta de simulación de conducción de automóviles todo terreno para análisis de carreteras y seguridad vial
The highway, the vehicle and the driver are the main agents of a traffic system, and traffic safety is determined by their interaction. The main objective of a traffic engineer is to achieve that this relationship be as good as possible, thus, accomplish reduction of road accidents. The elements use...
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| Formato: | Tesis doctoral |
| Lenguaje: | Español |
| Publicado: |
2021
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| Acceso en línea: | http://repositorio.unne.edu.ar/handle/123456789/27681 |
| Aporte de: |
| Sumario: | The highway, the vehicle and the driver are the main agents of a traffic system, and traffic safety is determined by their interaction. The main objective of a traffic engineer is to achieve that this relationship be as good as possible, thus, accomplish reduction of road accidents. The elements used in a road design, are the first step to get this objective. The geometric design and traffic signals must promote a confortable and fluid driving, thus avoiding abrupt maneuvers not provided by the driver. It is evident that horizontal alignment in flat territories, must have enough elements to help the driver to be awake, i. e. replace long alignment (more than 2 km), by wide curves, with big radii (2000 to 10000 mts), to oblige the driver to gently modify the trajectory and keep his attention. On the other hand, in territories with hills and mountains, it must be accomplished the maximum alignment length (2 km), and minimum alignment length (4 x V (km/h) expressed in meters) between curves, to mainly avoid a wide oscillation of velocities in the trajectory. In this sense, geometric consistency analysis allows identifying the use pattern of roads through operational speed estimate models and classification criteria. This may be performed in projects or in built roads. The velocities measurement procedure must be done in situ, with expensive specific equipment, great execution work, and actual danger. The use of a driving simulator appears as an essential complementary tool, that allows, at low cost, and in lab safety conditions, go around road segments generated in 3D environment. This process performed by different persons with different vehicles, allows a precise evaluation of the modeling segments. In this thesis, a driving simulator for road safety studies was developed and tested. Velocity and acceleration profiles, travel times, driver behaviors, trajectories and other parameters related to vehicle displacement were obtained. |
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