School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang, China.
Science & Technology Research & Development Center, Shandong Provincial Communications Planning and Design Institute Group Co., Ltd, Jinan, China.
PLoS One. 2021 Nov 11;16(11):e0259046. doi: 10.1371/journal.pone.0259046. eCollection 2021.
The complex design of transportation infrastructure hinders communication between different roles in the project, which makes it difficult to promote the Integrated Project Delivery (IPD) mode. This paper discusses a design simulation and communication system based on Building Information Modeling and Virtual Reality for transportation infrastructure (DSC-BV-TI system), integrated with BIM, with VR developed by using a game engine. Based on an analysis of the user's demand, the system introduces a three-dimensional BIM model of traffic infrastructure in an immersive VR environment and realizes the simulation design, weather simulation, virtual driving, sight distance calculation, visual simulation and other functions of traffic infrastructure project by using the system's safety assessment and scheme decision. The system is applied to the design of the Jinjiazhuang Extra-Long Tunnel project of the Yan-Chong Expressway in Hebei Province, which was built for the 2022 Winter Olympics. The results show that, using the DSC-BV-TI system, the designer has completed a display of the overall scheme: the user can use the steering wheel to drive a vehicle; use the head-mounted display to play the picture; realize the simulation and interaction in a variety of simulated weather conditions and environments; and use IPD mode to communicate and make decisions on the design scheme of the traffic infrastructure, tunnel speed limit and other aspects that play a key role. The DSC-BV-TI system has 8 advantages and 4 disadvantages identified through a questionnaire survey, the advantages including high fidelity, high efficiency and low cost. At the same time, according to the research results, three suggestions to help improve the system are discussed. DSC-BV-TI system as a communication bridge between the design team and other stakeholders reduces the communication gap and promotes the implementation of the IPD mode in transportation infrastructure projects.
交通基础设施的复杂设计阻碍了项目中不同角色之间的沟通，这使得推广综合项目交付（IPD）模式变得困难。本文讨论了一种基于建筑信息模型和虚拟现实的交通基础设施设计模拟和通信系统（DSC-BV-TI 系统），该系统集成了 BIM，并使用游戏引擎开发了 VR。基于对用户需求的分析，该系统在沉浸式 VR 环境中引入了交通基础设施的三维 BIM 模型，并通过系统的安全评估和方案决策，实现了交通基础设施项目的模拟设计、天气模拟、虚拟驾驶、视距计算、视觉模拟等功能。该系统应用于河北省延崇高速公路金家庄特长隧道项目的设计，该项目是为 2022 年冬奥会而建。结果表明，使用 DSC-BV-TI 系统，设计师完成了整体方案的展示：用户可以使用方向盘驾驶车辆；使用头戴式显示器播放画面；在多种模拟天气条件和环境中实现模拟和交互；并使用 IPD 模式对交通基础设施、隧道限速等关键设计方案进行沟通和决策。通过问卷调查，确定了 DSC-BV-TI 系统的 8 个优点和 4 个缺点，优点包括高保真度、高效率和低成本。同时，根据研究结果，讨论了有助于改进系统的三个建议。DSC-BV-TI 系统作为设计团队和其他利益相关者之间的沟通桥梁，减少了沟通差距，促进了 IPD 模式在交通基础设施项目中的实施。
