PSMdt offers advanced capabilities for generating highly detailed and accurate virtual environments of highway infrastructure. This forms the foundational layer of the digital twin. Two primary methods are supported:

• Integration with Existing Photorealistic 3D Tiles: The platform can leverage Google’s high-resolution photorealistic 3D tiles (or other publicly available datasets) to quickly render virtual replicas of large-scale highway areas. This enables rapid deployment and cost-effective visualization where data coverage is available.
• Custom 3D Model Development (LiDAR & Photogrammetry): For areas requiring higher fidelity or where existing 3D tiles are insufficient or unavailable, the platform supports the generation of detailed 3D models using LiDAR scans or photogrammetric techniques. These methods ensure precise spatial accuracy, capturing roadway geometry, elevation profiles, signage, roadside assets, and environmental features.

This dual-mode approach allows users to balance speed, cost, and precision based on their specific project needs.

PSMdt enables the seamless integration of georeferenced design drawings into the digital twin, supporting a wide range of design disciplines and file formats. This functionality allows project stakeholders to overlay and visualize detailed 2D and 3D design information directly within the geographic context of the highway environment.

PSMdt supports:

• Multi-Disciplinary Designs: The digital twin can be populated with geospatially aligned drawings from various domains, including Electromechanical systems, Communications, Intelligent Transportation Systems (ITS), Road Construction, Drainage, and more. Each dataset is positioned accurately within the virtual environment, facilitating cross-disciplinary coordination.
• BIM and CAD Compatibility: The platform supports the ingestion of Building Information Modeling (BIM) data as well as traditional 2D and 3D CAD drawings. This ensures that both high-level conceptual plans and detailed engineering designs can be visualized and evaluated spatially.
• Geographic Project Overview: By consolidating all relevant design documents within a single, location-aware interface, the platform provides a comprehensive geographic view of the project. This enhances collaboration, reduces design conflicts, and improves communication between teams throughout the design and planning phases.

PSMdt enables precise virtual placement of Intelligent Transportation Systems (ITS) equipment within the digital twin environment, supporting detailed design studies and integrator workflows. The two major functionalities of this critical key feature include:

• Interactive Equipment Placement: Designers and integrators can virtually navigate through the digital twin to identify optimal locations for ITS devices, such as cameras, Variable Message Signs (VMS), Variable Speed Limit Signs (VSLS), sensors, and other roadside systems. This spatially accurate interaction enhances early design validation and ensures devices are optimally positioned for performance and coverage.
• Digital Library of 3D ITS Models: The platform includes (or allows the creation of) a comprehensive digital library of 3D models representing ITS equipment. Users can select devices from this library and place them into the environment with full control over position, orientation, and scale. This allows for accurate representation of real-world installations.

Virtual equipment placement provides stakeholders with a realistic preview of how systems will be integrated into the highway infrastructure. It supports coordination, clash detection, visibility analysis, and documentation during the design phase. This feature significantly improves the efficiency, accuracy, and collaboration in ITS planning and deployment.

PSMdt supports the virtual placement and configuration of surveillance or ITS cameras within the digital twin, enabling advanced visibility and coverage analysis. The following core functionalities are supported:

• Configurable Camera Parameters: Users can position virtual cameras anywhere in the 3D environment and configure key parameters such as angle of view (field of view), detection radius, and orientation along all three rotational axes (pitch, yaw, roll). This allows for highly accurate modeling of real-world camera behavior.
• Heat Zone & Visibility Area Calculation: Using ray casting techniques, the platform calculates and visualizes camera coverage zones — also known as heat zones. These visual overlays highlight which areas are visible from a given camera location and orientation, supporting precise analysis of blind spots and overlapping fields of view.

This feature is essential for verifying the placement of ITS surveillance systems (e.g., CCTV, ANPR cameras) and ensuring optimal coverage with minimal redundancy. It supports security planning, incident detection layout, and operational efficiency in highway environments. By simulating and analyzing camera performance in a photorealistic, georeferenced 3D context, this tool enables data-driven decisions early in the design process.

PSMdt supports real-time data ingestion from external systems and field-deployed devices, enabling a dynamic, up-to-date digital representation of the highway environment. It supports connectivity with Live Sensor & Device Feeds. The digital twin can be connected to a wide array of external systems providing real-time data — including traffic sensors, weather stations, CCTV cameras, environmental monitoring devices, and ITS equipment. This transforms the digital twin from a static model into a live operational interface.

Incoming data can be dynamically visualized directly within the 3D environment — e.g., changing VMS messages, live sensor readings, or dynamic object movements — providing operators and designers with a powerful, intuitive interface for situational awareness.

PSMdt is flexible in terms of connectivity with external systems. Integration is enabled through standard protocols such as RESTful APIs, WebSocket connections, or web services, ensuring interoperability with various third-party platforms, SCADA systems, traffic management centers, or data aggregators.

Use Cases with Real-time feeds can be used for a wide range of applications, such as, live traffic flow visualization, incident detection and response, environmental condition monitoring, equipment status and fault detection, smart maintenance triggers etc.

This feature ensures that the digital twin serves not only as a design and planning tool, but also as a real-time digital operations dashboard.

PSMdt is built on an open, modular, and scalable architecture, thus being fully customizable to support bidirectional communication with external systems, enabling automated, optimized control actions in real time. Whether interfacing with traffic management systems, tunnel SCADA, smart lighting, or other ITS platforms, the platform’s flexible API framework and standards-based connectivity ensure seamless integration with a wide range of third-party solutions. Its modular design allows control logic, decision rules, and optimization algorithms to be tailored to specific use cases — from dynamic VMS control to ventilation system automation. This level of customization transforms the digital twin from a passive monitoring tool into an active, intelligent agent, capable of influencing the physical environment for improved safety, efficiency, and performance. The platform supports customized, intelligent control outputs back to the physical system, enabling closed-loop interactions between the digital twin and real-world infrastructure.

This feature transforms the digital twin from a passive mirror into an active, decision-support and automation engine, closing the loop between data, intelligence, and action.

PSMdt is designed to manage and maintain an unlimited volume of data and metadata related to field devices, sensors, and infrastructure components, ensuring a comprehensive and evolving representation of the real world. Each device or sensor represented in the digital twin can store extensive metadata — including technical specifications, configuration parameters, serial numbers, maintenance history, calibration records, firmware versions, and more. In addition to static metadata, the platform can store time-series data from sensors (e.g., temperature, speed, flow, status) as well as event logs such as alarms, faults, maintenance actions, or status changes. This capability turns the digital twin into a single source of truth for all physical and digital information related to highway assets, enabling informed decision-making, predictive maintenance, and regulatory compliance.

By linking all data and metadata to georeferenced, visually represented assets within the 3D environment, this feature ensures both data depth and spatial awareness across the entire infrastructure lifecycle.

PSMdt supports immersive experiences through Virtual Reality (VR), allowing users to engage with the digital twin in a fully immersive 3D environment — from anywhere in the world. The digital twin environment can be experienced using mainstream VR devices such as Meta Quest, enabling users to virtually walk through highways, tunnels, control rooms, or construction zones before they are physically built or modified. This capability is particularly valuable during planning and construction phases, where designers, engineers, stakeholders, and clients can explore and validate infrastructure layouts, safety zones, equipment placements, and access routes — all without needing to be on-site. Immersive visualization helps bridge communication gaps between technical and non-technical stakeholders by providing a shared, intuitive understanding of complex spatial environments.

By bringing the digital twin into VR, the platform offers a powerful tool for experiential insight, supporting better decisions, fewer change orders, and greater stakeholder confidence — all before a single shovel hits the ground.

PSMdt enables secure, web-based sharing of digital twin content, supporting seamless collaboration among stakeholders, designers, engineers, and decision-makers — regardless of their physical location. Users can define specific observation points, viewpoints, or scene configurations (e.g., camera placements, ITS device layouts, study excerpts), and share them with others for focused review and discussion. Content can be shared selectively, allowing administrators to grant access to specific segments of the digital twin — such as a tunnel system, interchanges, or a particular ITS study area — based on user roles and project requirements. Shared views are accessible directly via a web browser, eliminating the need for collaborators to install or configure additional software. This makes it easy for external stakeholders or non-technical users to engage with the project in a meaningful way.

This feature supports transparent, collaborative, and efficient decision-making, accelerating project timelines and improving cross-disciplinary communication.