BIM-based road driving simulation environment establishment method

Abstract

The invention discloses a BIM-based road driving simulation environment establishment method. The method comprises the following steps: loading a project file of JSL-route expert system road design software to form route design data; decomposing the design data elements, and mapping the decomposed design elements into road engineering information model design elements in a LandXML format; mapping the design elements into lane data supported by PTV-VISSIM; analyzing the road engineering information model data in an FDB format, and converting the data into a three-dimensional model in an FBX / OBJ / DAE format; based on the road engineering information design elements in an LandXML format, constructing a driving road and terrain along the line in driving simulation software; based on the three-dimensional model in the FBX / OBJ / DAE format, arranging a scene object model in driving simulation software; and based on traffic simulation analysis software PTV-VISSIM and a driving simulation system data exchange module, creating a simulation driving model in a driving simulation system. According to the invention, a driving simulation project environment can be rapidly constructed, a road simulation traffic flow can be constructed, and an engineering environment and a driving environment after a road is constructed can be simulated.

Description

technical field [0001] The invention relates to the technical field of road traffic, in particular to a method for establishing a BIM-based road driving simulation environment. Background technique [0002] Improving road traffic safety is one of the important goals of road design. It is of great significance to effectively evaluate road safety and predict road safety in the design stage to improve the quality of road design. But for unbuilt roads, it is impossible for people to actually drive and evaluate them. Using driving simulation technology, on the basis of 3D modeling of the designed road route, structures, and terrain, ground objects and other elements along the road, simulate the overall environment and driving state after the completion of the road, so as to test the road alignment design and other elements And evaluation analysis is an important technical means for road safety evaluation. [0003] The real traffic environment is composed of "people", "vehicles"...

AI Technical Summary

Problems solved by technology

The traditional driving simulation system must rely on the user to build the environment model and engineering model, which is very time-consuming and human resources, and there is a certain deviation in the restoration accuracy; the traditional driving simulation can only randomly generate simulated traffic flow, which is somewhat different from the design-predicted traffic flow , it is necessary to use traffic simulation software to generate predicted values ​​and perform three-dimensional restoration in the driving simulation software to further reflect the impact of traffic flow on driving

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