Interchange sight distance evaluation method based on BIM technology

Abstract

The invention discloses an interchange sight distance evaluation method based on a BIM technology. According to the method, the BIM technology is introduced from the design stage, the BIM model is used as a carrier, the visualization advantage of the BIM is fully utilized, simulation operation analysis is carried out on the position where poor sight distance is likely to occur, a basis is providedfor scheme optimization and targeted prevention and treatment, and later-period operation potential safety hazards caused by scheme defects are solved from the source. The BIM technology and the VR technology are deeply fused, the sight distance safety problem under different working conditions is detected through a simulation driving sinking and invading mode, and an effective scheme is providedfor solving the problems that sight distance evaluation is difficult, and the evaluation effect is difficult to balance. The visual range inspection, analysis and evaluation application based on theBIM technology has great practical value for the rationality of a highway design and construction scheme and the safety of highway driving.

Description

technical field [0001] The invention relates to the field of interchange sight distance evaluation, in particular to a method for evaluating the sight distance of interchange type interchanges based on BIM technology. Background technique [0002] my country's expressway traffic accidents are generally on a downward trend, but they are still in a period of high incidence. According to the 2015 "Global Status Report on Road Safety" released by the World Health Organization (WHO), more than 1.25 million people died in traffic accidents worldwide in 2013. According to relevant research, the incidence of traffic accidents on interchange sections is as high as 30%, and accidents are caused by various factors. According to a large number of traffic accident statistics, drivers, road sight distance, weather, traffic volume, and time period are the main dependent variables. [0003] Interchanges in the mountainous and hilly areas of western my country are restricted by complex and ...

AI Technical Summary

Problems solved by technology

[0005] At present, in the design stage, the compliance check of design index values ​​and formula calculation methods are mostly used for line-of-sight calculation. The spatial relationship of roads is complex, and there are many factors affecting line-of-sight. It is difficult to calculate all the impact factors with theoretical formulas, and it is impossible to simulate night and rainy days. Sight distance under different working conditions such as the glare of oncoming headlights

Therefore, the use of traditional two-dimensional methods to solve the problem of spatial line-of-sight has certain defects.

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