CN112231804A - Traffic simulation analysis method for BIM technology after open cut subway station road diversion - Google Patents
Traffic simulation analysis method for BIM technology after open cut subway station road diversion Download PDFInfo
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Abstract
The invention discloses a BIM technology-based traffic simulation analysis method for an open cut subway station after road diversion, which comprises the following steps: generating a three-dimensional model of a ground object at the position of a project in Autodesk Infraworks software; drawing a construction site layout three-dimensional model in Autodesk Revit software according to a construction site layout plan, and setting project coordinates; importing the traffic guidance and modification map and the construction site cloth three-dimensional model into Autodesk Infraworks software according to coordinates, integrating, and drawing a road model after traffic guidance and modification; and inputting the vehicle flow data acquired on site into Autodesk Infraworks software for traffic flow simulation analysis. The invention provides a decision for optimizing the traffic guidance and modification scheme and determining the scheme, accelerates the early-stage work progress, provides guarantee for the subsequent construction period and improves the project management level.
Description
Technical Field
The invention mainly relates to the technical design field, in particular to a BIM technology-based traffic simulation analysis method for an open cut subway station after road diversion.
Background
Most open cut subway projects are located in central urban main roads with huge traffic flow and pedestrian flow, the problem of traffic guidance is required to be solved in the early construction period, and the traffic congestion phenomenon is seriously aggravated by dividing into multi-period traffic guidance, so that municipal traffic is greatly influenced.
At present, a FLOTRAN CFD fluid analysis module in finite element analysis software ANSYS can be used for carrying out simulation on traffic flow, and from ANSYS self modeling, interface manageability and operability supported by a graph driving technology are relatively poor, and complex model modeling cannot be completed, so that the reliability is greatly reduced in an analysis effect, and the working efficiency is influenced. Secondly, road blind areas cannot be analyzed, three-dimensional display cannot be carried out at the driving angle, and the safety of the road after traffic guidance and modification cannot be guaranteed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a BIM technology-based traffic simulation analysis method for guided and modified open cut subway station roads, which can analyze crossroads, identify sight obstacle areas, analyze traffic flow of the intersections, perform traffic simulation, provide decisions for optimizing traffic guidance modification schemes and determining schemes, accelerate earlier-stage work progress, provide guarantee for subsequent construction periods and improve project management level.
The technical scheme adopted by the invention is as follows: a BIM technology-based traffic simulation analysis method for an open cut subway station after road diversion comprises the following steps:
generating a three-dimensional model of a ground object at the position of a project in Autodesk Infraworks software;
drawing a construction site layout three-dimensional model in Autodesk Revit software according to a construction site layout plan, and setting project coordinates;
importing the traffic guidance and modification diagram and the construction site cloth three-dimensional model into Autodesk Infraworks software according to coordinates, integrating, and drawing a road model after traffic guidance and modification;
and inputting the traffic flow data acquired on site into the Autodesk Infraworks software for traffic flow simulation analysis.
As an implementation mode of the traffic simulation method, the project coordinates set in the arrangement of the three-dimensional model of the construction field cloth are drawn in the Autodesk Revit software, and the coordinates of the three-dimensional model of the ground object generated in the Autodesk Infraworks software are kept consistent.
As an embodiment of the traffic simulation method of the present invention, the traffic guidance drawing is a CAD drawing issued by a design institute.
As an implementation mode of the traffic simulation method, the steps of importing a traffic guidance map and the construction site three-dimensional model into Autodesk Infraworks software according to coordinates, integrating the traffic guidance map and the construction site three-dimensional model, and drawing a road model after traffic guidance is changed comprise the following steps:
integrating the imported construction field cloth three-dimensional model with the surface feature three-dimensional model in the Autodesk Infraworks software according to coordinates;
and drawing the road model after guidance modification in the Autodesk Infraworks software according to the introduced traffic guidance modification diagram.
As an implementation mode of the traffic simulation method, the step of inputting the traffic flow data collected on site into the Autodesk Infraworks software for traffic flow simulation analysis comprises the following steps:
and inputting the traffic flow data acquired on site into the Autodesk Infraworks software, setting the type of the vehicle, and performing traffic flow simulation analysis.
As an embodiment of the traffic simulation method of the present invention, the traffic flow simulation analysis includes: the existing traffic guidance scheme of the project is subjected to visual simulation and driving sight distance analysis through driving simulation and roaming modes.
As an embodiment of the traffic simulation method of the present invention, the method further includes the steps of:
and optimizing the existing project guiding and modifying scheme according to the data of the traffic flow simulation analysis, and determining the final traffic guiding and modifying scheme.
As an embodiment of the traffic simulation method of the present invention, the optimizing includes:
optimizing the traffic diversion map according to the data of traffic flow simulation analysis;
reintroducing the optimized traffic guidance diagram into the Autodesk Infraworks software;
in the Autodesk Infraworks software, modifying the road model according to the optimized traffic guidance diagram;
and inputting the vehicle flow data acquired on site into the Autodesk Infraworks software, setting the vehicle type, carrying out traffic flow simulation analysis again, determining as a final traffic guidance and modification scheme if the data meets optimization requirements, and otherwise, circulating the optimization steps until the optimization requirements are met.
As an embodiment of the traffic simulation method of the present invention, the method further includes the steps of: and guiding the site construction according to the finally determined traffic guiding and modifying scheme.
The invention utilizes BIM technology to automatically generate a ground object model of the position of a project in Autodesk Infraworks software, integrates the ground object model with a field layout model and a traffic guidance CAD which are drawn in Autodesk Revit, draws a road model after traffic guidance is changed, inputs traffic flow data acquired on site into the Autodesk Infraworks software, sets the type of a vehicle, carries out traffic flow simulation analysis, carries out visual simulation and driving visual distance analysis on the existing traffic guidance change scheme through driving simulation, roaming and the like, is easier to understand the traffic guidance change scheme, is visual and clear at a glance, smoothly solves the traffic guidance change problem, optimizes the guidance change design, quickly determines the traffic guidance change scheme, and smoothly passes approval.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a specific operation procedure of an embodiment of a traffic simulation analysis method after road diversion of an open cut subway station based on a BIM technology.
Fig. 2 is a specific implementation scheme of an embodiment of a traffic simulation analysis method after road diversion of an open cut subway station based on a BIM technology.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention mainly provides a traffic simulation analysis method after subway station road diversion and modification based on BIM technology, which utilizes a building information model consistent with the site to carry out intersection analysis on the road after traffic diversion and modification, identify sight line obstacle areas, analyze traffic flow congestion conditions and carry out traffic simulation, thereby providing decisions for optimizing a traffic diversion scheme and a determination scheme, accelerating the early working progress, providing guarantee for the subsequent construction period and improving the project management level.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, the specific operation steps of an embodiment of the traffic simulation analysis method after the road diversion of the open cut subway station based on the BIM technology of the present invention are shown, and fig. 2 is a specific implementation scheme of an embodiment of the traffic simulation analysis method after the road diversion of the open cut subway station based on the BIM technology of the present invention.
As shown in fig. 1, the traffic simulation analysis method for the open cut subway station road diversion by the BIM technology in the embodiment of the present invention mainly includes the following operation steps:
step S1: generating a three-dimensional model of a ground object around the position of the project in Autodesk Infraworks software;
step S2: drawing a construction site layout three-dimensional model in Autodesk Revit software according to a construction site layout plan, and setting project coordinates;
step S3: importing a traffic guidance drawing from a design institute and a three-dimensional field layout drawing of a drawn three-dimensional construction field layout model into Autodesk Infraworks software according to coordinates for integration;
step S4: drawing a road model after guidance modification according to a guided traffic guidance modification diagram in Autodesk Infraworks software;
step S5: and inputting the traffic flow data acquired on site into Autodesk Infraworks software, setting the type of the vehicle, and performing traffic flow simulation analysis.
The project coordinates set in the arrangement of the three-dimensional construction field cloth model drawn in the Autodesk Revit software are consistent with the coordinates of the three-dimensional surface feature model generated in the Autodesk Infraworks software.
The scheme design, scheme display and modeling drawing software aiming at the infrastructure industry and provided by Autodesk Infraworks software company has the functions as follows:
1. the software operation threshold is low, and the operation is simple and easy to understand;
2. the simulation of the simulation animation-vivid rendering material provides a user-defined gallery, so that the model is more abundant;
3. the selection of communication coordination tool-feasibility scheme provides a good communication and non-obstacle platform for users, designs and owners.
In step S3, the courier-issued traffic guidance drawing is designed as a CAD plan drawing.
In step S4, when the Autodesk Infraworks draws a traffic guidance and change road, component roads must be used for drawing, and it is determined that the intersection is connected, otherwise, the software does not recognize when performing traffic simulation.
In step S5, the traffic flow data input during traffic simulation is definitely the actual data collected at the present situation, otherwise, the simulation analysis is not accurate.
Further, in step S5, the traffic flow simulation analysis may include: the existing traffic guidance scheme of the project is subjected to visual simulation and driving sight distance analysis through driving simulation and roaming modes.
As a preferred embodiment of the present invention, after step S5, the method for analyzing traffic simulation after road diversion of open cut subway station by BIM technology of the present invention may further include the following steps:
and (5) optimizing the existing project change guiding scheme according to the data of the traffic flow simulation analysis in the step 5, and determining the final traffic change guiding scheme.
Specifically, as shown in fig. 2, the optimization method includes:
optimizing the traffic diversion map according to the data of traffic flow simulation analysis;
reintroducing the optimized traffic guidance diagram into Autodesk Infraworks software;
in the Autodesk Infraworks software, modifying the road model according to the optimized traffic guidance map;
and inputting the vehicle flow data acquired on site into Autodesk Infraworks software, setting the vehicle type, carrying out traffic flow simulation analysis again, determining as a final traffic guidance and modification scheme if the data meets optimization requirements, and otherwise, circulating the optimization steps until the optimization requirements are met.
The traffic simulation analysis method after the BIM technology open cut subway station road is guided and changed can also comprise the following steps: and guiding the site construction according to the finally determined traffic guidance scheme after optimization.
The invention utilizes BIM technology to automatically generate a ground object model of the position of a project in Autodesk Infraworks software, integrates the ground object model with a field layout model and a traffic guidance CAD which are drawn in Autodesk Revit, draws a road model after traffic guidance is changed, inputs traffic flow data acquired on site into the Autodesk Infraworks software, sets the type of a vehicle, carries out traffic flow simulation analysis, carries out visual simulation and driving visual distance analysis on the existing traffic guidance change scheme through driving simulation, roaming and the like, is easier to understand the traffic guidance change scheme, is visual and clear at a glance, smoothly solves the traffic guidance change problem, optimizes the guidance change design, quickly determines the traffic guidance change scheme, and smoothly passes approval.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and are all included in the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (9)
1. A traffic simulation analysis method after road diversion of an open cut subway station based on a BIM technology is characterized by comprising the following steps:
generating a three-dimensional model of a surface feature at the position of a project in Autodesk Infraworks software;
drawing a construction site layout three-dimensional model in Autodesk Revit software according to a construction site layout plan, and setting project coordinates;
importing the traffic guidance and modification diagram and the construction site cloth three-dimensional model into Autodesk Infraworks software according to coordinates, integrating, and drawing a road model after traffic guidance and modification;
and inputting the traffic flow data acquired on site into the Autodesk Infraworks software for traffic flow simulation analysis.
2. The traffic simulation analysis method for the BIM technology open cut subway station road after the diversion of the station as claimed in claim 1, characterized in that: and drawing the project coordinates set in the arrangement of the three-dimensional model of the construction field cloth in the Autodesk Revit software, wherein the project coordinates are consistent with the coordinates of the three-dimensional model of the ground object generated in the Autodesk Infraworks software.
3. The BIM technique open cut subway station road traffic simulation analysis method after traffic modification as claimed in claim 1, wherein said traffic modification map is CAD drawing issued by design institute.
4. The traffic simulation analysis method after road modification for an open cut subway station by the BIM technology as claimed in claim 1, wherein the step of importing the traffic modification map and the three-dimensional model of the construction site layout into Autodesk Infraworks software according to coordinates for integration and drawing the road model after traffic modification comprises:
integrating the imported construction field cloth three-dimensional model with the surface feature three-dimensional model in the Autodesk Infraworks software according to coordinates;
and drawing the road model after guidance modification in the Autodesk Infraworks software according to the introduced traffic guidance modification diagram.
5. The traffic simulation analysis method for the road modification of the open cut subway station based on the BIM technology as claimed in claim 1, wherein the step of inputting the traffic flow data collected on site into the Autodesk Infraworks software for traffic flow simulation analysis comprises:
and inputting the traffic flow data acquired on site into the Autodesk Infraworks software, setting the type of the vehicle, and performing traffic flow simulation analysis.
6. The BIM technology open cut subway station road diversion post-traffic simulation analysis method as claimed in claim 1 or 5, wherein said traffic flow simulation analysis comprises: the existing traffic guidance scheme of the project is subjected to visual simulation and driving sight distance analysis through driving simulation and roaming modes.
7. The traffic simulation analysis method for the BIM technology open cut subway station road after the diversion of the road, as claimed in claim 1, further comprising the steps of:
and optimizing the existing project guiding and modifying scheme according to the data of the traffic flow simulation analysis, and determining the final traffic guiding and modifying scheme.
8. The BIM technique open cut subway station road traffic simulation analysis method after diversion of claim 7, wherein said optimizing comprises:
optimizing the traffic diversion map according to the data of traffic flow simulation analysis;
reintroducing the optimized traffic guidance diagram into the Autodesk Infraworks software;
in the Autodesk Infraworks software, modifying the road model according to the optimized traffic guidance diagram;
and inputting the vehicle flow data acquired on site into the Autodesk Infraworks software, setting the vehicle type, carrying out traffic flow simulation analysis again, determining as a final traffic guidance and modification scheme if the data meets optimization requirements, and otherwise, circulating the optimization steps until the optimization requirements are met.
9. The traffic simulation analysis method for the BIM technology open cut subway station road after the diversion according to claim 7 or 8, characterized by further comprising the steps of:
and guiding the site construction according to the finally determined traffic guiding and modifying scheme.
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Cited By (3)
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| CN113076638A (en) * | 2021-03-30 | 2021-07-06 | 东南大学 | BIM and VISSIM microscopic simulation-based bidirectional traffic diversion simulation method |
| CN113391368A (en) * | 2021-06-30 | 2021-09-14 | 山东国瑞新能源有限公司 | Road exploration method and equipment based on virtual imaging technology |
| CN115659440A (en) * | 2022-10-31 | 2023-01-31 | 中交第二公路勘察设计研究院有限公司 | Construction organization and traffic organization simulation method based on Unity platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113076638A (en) * | 2021-03-30 | 2021-07-06 | 东南大学 | BIM and VISSIM microscopic simulation-based bidirectional traffic diversion simulation method |
| CN113391368A (en) * | 2021-06-30 | 2021-09-14 | 山东国瑞新能源有限公司 | Road exploration method and equipment based on virtual imaging technology |
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