01
Challenge Title
BIM-Based Refined Modeling and Operation and Maintenance Applications for Urban Infrastructure
Challenge Description：Participants shall select an urban asset such as a road, bridge, utility tunnel, school, hospital, or building within an industrial or business park; construct a BIM model; link facility information to the model; and provide a lightweight visualization. The work shall demonstrate intelligent operation and maintenance scenarios including facility registers, inspection and maintenance, hazard records, and emergency response. This challenge emphasizes engineering representation, model quality, and the practical implementation of business processes. It is particularly suitable for vocational-college teams seeking to demonstrate their capabilities in modeling, quantity takeoff, construction organization, and operation and maintenance applications.
Core Requirements：
1. Modeling Standards: Develop the BIM model according to professional disciplines and component hierarchies. Ensure that the naming, coding, attributes, and quantity information of key components are complete.
2. Data Integration: Link equipment registers, inspection records, maintenance work orders, photographs, videos, or simulated sensor data to the relevant components, and establish spatial associations with GIS basemaps, real-scene 3D data, or remote-sensing imagery.
3. Closed-Loop Business Process: Implement at least two categories of operation and maintenance functions, such as asset inquiry, inspection-task management, hazard location, maintenance handling, and statistical reporting.
4. Lightweight Visualization: Provide a smooth user experience for model browsing, sectioning, component retrieval, and information inquiry. The solution may be demonstrated on the web, desktop, or mobile platform.
5. Application Value: Explain how the solution contributes to refined facility management, cost reduction and efficiency improvement, safety inspection, or service assurance.
Submission Requirements：
1. A solution document in PDF format (approximately 5,000 Chinese characters), including the selected asset, problem analysis, modeling plan, data organization, functional design, implementation pathway, and value demonstration.
2. BIM model and deliverables: submit model screenshots, a model description, and an accessible model file. Where relevant, provide sample data after appropriate data desensitization.
3. A demonstration video of no more than eight minutes showing the modeling results and core functions.
4. Optional prototype demonstration system: provide an accessible URL, an installation package, or an additional demonstration video.
02
Challenge Title
Urban Renewal and Spatial-Governance Decision Support through BIM+CIM Multi-Source Data Integration
Challenge Description：Focusing on scenarios such as the renewal of aging residential communities, 15-minute living circles, transit-oriented development, conservation of historic districts, underground-space development, and urban health assessment, participants shall integrate BIM models, CIM/GIS platforms, remote-sensing imagery, real-scene 3D data, population and transportation data, public-service data, and IoT sensing data. The objective is to develop a decision-support application for planning evaluation, comparison of alternative schemes, and refined spatial governance. University teams are encouraged to emphasize methodological innovation, indicator systems, simulation analysis, and quantitative validation.
Core Requirements：
1. Multiscale Integration: Achieve spatial registration, semantic association, and unified visualization of data at different scales, including buildings, neighborhoods, and urban districts.
2. Indicator System: Develop at least three categories of evaluation indicators relating to areas such as livability, transportation, public services, energy consumption and carbon emissions, safety and resilience, and the ecological environment.
3. Analysis and Decision Support: Support scheme comparison, problem identification, spatial statistics, accessibility analysis, and at least one type of simulation or quantitative analysis, such as daylighting, wind environment, energy consumption, or pedestrian flows.
4. Technological Innovation: The use of methods such as parametric design, AI-based recognition, knowledge graphs, rule engines, and digital-twin simulation is encouraged to improve automation and intelligence.
5. Validation and Demonstration: Use a sample area, open data, or self-collected data to demonstrate the reliability of the model, the reasonableness of the indicators, and the potential for broader application.
Submission Requirements：
1. A solution document in PDF format (approximately 5,000 Chinese characters), including scenario pain points, the data framework, technical route, indicator models, functional design, validation results, and application value.
2. Data and model documentation: submit an explanation of BIM, CIM, GIS, and other data organization; screenshots of key model outputs; and a data dictionary or sample dataset.
3. A demonstration video of no more than eight minutes showing data integration, evaluation and analysis, and the comparison of alternative schemes.
4. Optional prototype system or code documentation: provide an accessible URL, operating instructions, a description of the core algorithms, or a summary of key code.
03
Challenge Title
BIM+AI+IoT Digital Twins for Urban Lifelines and Resilience Safety
Challenge Description：For urban lifelines and key public facilities, including gas, water supply, drainage, bridges, tunnels, underground utility tunnels, and fire protection, participants shall construct a BIM-based digital-twin environment and connect or simulate multi-source data from IoT sensors, UAV inspections, remote-sensing monitoring, work orders, and incident records. The system shall support monitoring and early warning, risk assessment, coordinated emergency response, operation and maintenance handling, and post-event review and evaluation. This challenge is intended for social-sector and industry teams and encourages solutions with strong engineering feasibility and commercial scalability.
Core Requirements：
1. Closed-Loop Business Process: Cover the full process of monitoring, early warning, assessment, response, and post-event review, and clearly define the managed assets, role assignments, and response mechanisms.
2. Sensing and Data Access: Connect or simulate data relating to pressure, liquid level, displacement, subsidence, smoke detection, video surveillance, inspection, and weather, and associate those data with BIM components or spatial locations.
3. Intelligent Early Warning: Develop threshold rules, risk matrices, anomaly-detection models, trend-forecasting models, or simulation models to generate graded early warnings and identify the spatial extent of risk impacts.
4. Coordinated Emergency Response: Support at least two functions such as incident location, impact analysis, recommended response measures, personnel and material dispatch, and visualization of evacuation or repair routes.
5. Implementation Feasibility: Explain the system architecture, data security, deployment approach, operation and maintenance mechanism, costs and benefits, and the pathway for replication and broader deployment.
Submission Requirements：
1. A solution document in PDF format (approximately 5,000 Chinese characters), including the scenario description, business process, system architecture, data access, algorithmic logic, implementation pathway, and value demonstration.
2. A digital-twin prototype: submit a runnable system, a web-based demonstration, a desktop demonstration, or a complete video demonstration showing the closed loop of core functions.
3. A demonstration video of no more than eight minutes showing risk monitoring, early-warning and assessment, and emergency-response procedures.
4. Optional business plan: suitable for projects with commercialization potential and may describe target customers, cooperation models, and promotion plans.
04
Challenge Title
Development and Solution Design for Typical City Information Model (CIM) Application Scenarios
Challenge Description：Entries shall focus on operation-stage applications involving the integration of physical and virtual environments, and shall explore the practical use of emerging technologies such as virtual reality, digital twins, and AIGC in a wide range of urban scenarios. These may include smart cities, smart communities, smart industrial or business parks, smart campuses, smart transportation, smart construction sites, smart property management, and smart homes. Digital methods should be used to integrate operation and maintenance management with new equipment, technologies, platforms, materials, and products in day-to-day management. This challenge is open to social-sector, industry, and university teams and encourages the development of implementable solutions.
Core Requirements：
1. Completeness of Content: The entry shall present a complete solution system with a closed content loop, clear logic, and all necessary elements. Fragmented presentation is not acceptable.
2. Technical Authenticity: Technical content involving CIM models, digital-twin environments, and related elements shall be authentic, compliant, logically consistent, and suited to operation and maintenance scenarios.
3. Practicality of the Scenario: The solution shall align with the current technical capabilities, management standards, and cost structure of the urban operation and maintenance sector, and shall demonstrate strong implementation feasibility.
4. Standardized Presentation of Results: The entry shall be logically organized, structurally complete, detailed, and supported by both text and graphics. Core data, functional outcomes, and key application highlights shall be presented clearly and intuitively.
Submission Requirements：
1. A solution document in PDF format (approximately 5,000 Chinese characters), including the scenario background, business process, system architecture, data access, implementation pathway, and value demonstration.
2. CIM model: provide the URL of a runnable system capable of demonstrating the closed loop of core functions.
3. A demonstration video of no more than five minutes showing operation and maintenance functions for a typical CIM-based application scenario.
4. Optional prototype system or code documentation: provide an accessible URL, operating instructions, a description of the core algorithms, or a summary of key code.