Building the Communication Infrastructure Behind Intelligent Transportation
RoadLink is developing a connected transportation architecture that links vehicles, wireless communication nodes, gateways, server infrastructure, and software into a distributed system for transportation intelligence.
Physical-to-Cloud Distributed Mesh Pipeline
Technology Built as Infrastructure
RoadLink approaches transportation as a connected infrastructure problem. The objective is to create a technology layer in which vehicles can participate in a distributed communication network, information can move through that network, gateways can connect the field network to centralized infrastructure, and software can transform that information into useful transportation intelligence.
Connected Vehicles
Vehicles become active communication nodes within the transportation network rather than silent, isolated mobile units.
Distributed Communication
Information moves across participating nodes rather than depending entirely on direct communication with a fixed central point.
Gateway Infrastructure
Fixed edge concentrators act as the physical bridge connecting dynamic field mesh topologies to high-throughput centralized digital infrastructure.
Centralized Intelligence
Server infrastructure continuously ingests, processes, stores, and organizes incoming roadway telemetry for operational analytics and dispatch dashboards.
From Vehicle to Infrastructure
A comprehensive overview of RoadLink’s seven modular architectural layers—spanning physical vehicular assets through field transceivers to centralized operational intelligence.
Vehicle
The physical transportation asset carrying the communication node within urban corridors.
SCMRA
A vehicle-side communication node designed to collect defined vehicle information and participate in the wireless network.
Wireless Relay
SCMRA nodes communicate and relay information through nearby participating nodes.
Gateway
Receives information from the wireless field network and forwards it toward centralized infrastructure.
Backhaul
Provides the connection between Gateway infrastructure and the central server environment.
Server
Central infrastructure for receiving, processing, storing, and managing network information.
Software
Applications and dashboards transform system information into interfaces for monitoring and analysis.
The Traffic Monitoring System
The Traffic Monitoring System (TMS) is RoadLink's initial technology platform for building a connected transportation infrastructure layer. Composed of cooperating layers rather than a single device.
Vehicle Domain
SCMRA and vehicle-side information. Gathers defined kinematic telemetry and battery status without invasive alterations.
Physical telemetry originNetwork Domain
Wireless communication and relay infrastructure. Sub-GHz 433 MHz peer relay protocol governing micro-slotted channel access.
Sub-GHz ISM mesh linkInfrastructure Domain
Gateways, backhaul, and server systems performing cryptographic validation, frame normalization, and spatial indexing.
Stationary concentrators & serverApplication Domain
Monitoring, visualization, management, and analysis. Web console displaying active node telemetry and corridor behavior.
Operator UI & analytics consoleSCMRA — The Vehicle-Side Network Node
SCMRA is the vehicle-mounted communication node at the edge of the RoadLink architecture. It is designed to collect defined vehicle information, communicate with nearby SCMRA nodes, and relay network information toward Gateway infrastructure.
* Example system information fields — not live operational data.
A Network That Can Move With the Traffic
Instead of relying exclusively on fixed roadside communication points, RoadLink's architecture explores a model in which participating vehicles can also contribute to the communication network. Each participating SCMRA can act as both a communication endpoint and, where appropriate, a relay point for network information.
Nodes operate peer-to-peer, designed to explore reduced dependence on direct vehicle-to-gateway communication.
The architecture is intended to allow communication paths to naturally multiply as vehicular density increases.
Communication opportunities can potentially shift dynamically where participating vehicles congregate.
Communication Designed for Distributed Nodes
The communication architecture is designed for constrained Sub-GHz packet radios, considering addressing, packet identification, hop limits, flags, error checking, and retransmission.
Bounded Relaying
Considers strict hop limits / TTL to prevent packet loops across dynamic vehicle clusters.
Time-Slotted Comms
Explores structured time-slotted channel access to manage concurrent field bursts cleanly.
Error Checking & Ack
CRC-16 verification ensures corrupted RF frames are filtered before gateway transmission.
Periodic Beaconing
Low-duty heartbeat messages allow node presence discovery and topology health tracking.
The Gateway: Connecting the Field Network to the Core
The Gateway is the bridge between the distributed wireless field network and RoadLink's centralized infrastructure.
STM32F7-Class Microcontroller Architecture
High-performance microcontroller core executing packet filtering, buffer queues, and translation to backhaul protocols.
CC1101 Radio Architecture & Front-End
433 MHz Sub-GHz transceiver with RF amplification and front-end considerations for roadside field reception.
Backhaul & Connectivity Considerations
Fiber can provide a suitable high-reliability backhaul option where available, with other connectivity approaches evaluated per deployment requirements.
The Central Intelligence Layer
The server environment forms the central digital layer of the architecture. It receives information from Gateways, processes and stores system data, manages network information, and provides the foundation for higher-level software applications.
Data Ingestion
Receives packet streams arriving from gateways, verifying packet format and cryptographic signatures.
Processing
Deduplicates repeated packets relayed via multiple gateways; aligns chronological timestamps and trajectories.
Storage
Maintains time-series telemetry records, corridor historical metrics, and reporting logs.
Network Mgmt
Manages gateway health, SCMRA device status, reporting configuration, and operating profiles.
App Services
Feeds processed data to monitoring interfaces, analytical dashboards, alerts, and operational tools.
Turning Network Data Into Transportation Intelligence
The software layer provides the human interface to the infrastructure, transforming raw network telemetry into actionable monitoring and analysis.
One Signal. Multiple Layers of Infrastructure.
Transportation infrastructure becomes more intelligent when physical movement can generate structured information that can move through a connected digital system.
Physical Movement
Vehicle accelerates, decelerates, or shifts lanes along road corridors.
Digital Info
SCMRA node MCU samples sensors, constructing structured telemetry bytes.
Sub-GHz Wireless
Packet transmitted across 433 MHz band, jumping intermediate peers.
Network Infra
Stationary concentrator converts RF demodulated frame into backhaul packets.
Centralized Data
Server environment resolves timestamps, removes duplicates, and logs state.
Operational Intel
Applications render updated corridor velocity maps and alert flags for human decision.
Engineering Principles
Every architectural decision at RoadLink is governed by disciplined hardware and systems engineering principles designed for practical field operation.
Distributed by Design
Build communication architecture that does not depend entirely on a single communication path.
Infrastructure First
Build the underlying communication and data infrastructure before layering applications on top.
Low-Power Edge Devices
Design vehicle-side nodes with power efficiency and practical field operation in mind.
Modular Architecture
Keep vehicle nodes, gateways, backhaul, server systems, and applications modular so individual layers can evolve.
Scalable Architecture
Design the architecture so that additional nodes, gateways, applications, and transportation use cases can be introduced over time.
Validate Before Scaling
Prototype, test, measure, and validate engineering assumptions before moving toward larger deployment.
Where the Technology Stands Today
RoadLink operates on a disciplined validation framework, clearly distinguishing current engineering milestones from future deployment horizons.
Architecture
System architecture defined.
Engineering
Core architecture being developed.
Prototype
Active prototype hardware & integration.
Validation
Communication and system testing.
Pilot
Future controlled deployment.
Deployment
Future scale deployment.
Technology That Can Grow Beyond Traffic Monitoring
The initial TMS architecture is intended as a foundation from which additional transportation applications could eventually be developed as the underlying communication infrastructure matures.
Intelligent Traffic Management
Dynamic signal adjustment via aggregate arterial flow.
Connected Public Transport
Bus corridor synchronization without external cell fees.
Fleet Infrastructure
Inter-vehicle yard coordination and loading diagnostics.
Highway Connectivity
Long-range inter-gantry relay along highway corridors.
Emergency Transportation
Immediate low-latency peer broadcasts to clearing corridors.
Smart-City Transportation
Standardized ingestion pipes for civil planning engines.
Transportation Data Infra
High-density time series feeds for research institutions.
Future Connected-Vehicle Services
Non-line-of-sight hazard broadcasting between auto fleets.
The Dashboard Is Only the Final Layer
A transportation intelligence platform is only as useful as the infrastructure underneath it. RoadLink's approach starts below the dashboard — with the vehicle node, communication network, Gateway, backhaul, server infrastructure, and the systems required to connect them.
| Layer | Primary Components | Role in System |
|---|---|---|
| EDGE | Vehicle Nodes / SCMRA / Sensors | Collects defined vehicle operational data and participates in wireless network |
| COMMUNICATION | Sub-GHz Wireless / 433 MHz Relay Comms | Enables peer-to-peer relaying and hop forwarding across participating vehicles |
| FIELD INFRASTRUCTURE | Gateway / RF Front End / Omnidirectional Antenna | Ingests field wireless frames, verifies packet structure, queues for backhaul |
| CONNECTIVITY | Internet / Fiber / Backhaul | Transports concentrated field streams from stationary edge to core server |
| CORE | Server / Database / Network Management | Ingestion, deduplication, time-series storage, device health management |
| APPLICATION | Monitoring Platform / Dashboard / Alerts / Analytics | Transforms system data into visual interfaces for human operator decisions |
Security Begins at Every Layer
RoadLink's architecture must treat security as an end-to-end system property rather than a feature added only at the software layer. Security architecture is being designed alongside the system.
Device Identity
Unique device identifiers embedded into vehicle node hardware registers.
Comms Integrity
CRC error detection and checksums to guard against transmission corruption.
Mesh Participation
Authenticated network rules governing which nodes are permitted to relay data.
Gateway Backhaul
Protected communication tunnels carrying field traffic across backhaul circuits.
Server Hardening
Strict access control, continuous monitoring, and structured audit logging.
Technical FAQ
What is SCMRA?
SCMRA is the vehicle-side communication node in RoadLink's architecture, designed to collect defined vehicle information and participate in the distributed wireless network.
How does information reach the server?
Information can move through the SCMRA wireless network to a Gateway, after which the Gateway forwards it through backhaul connectivity to the central server environment.
Is RoadLink already deployed city-wide?
No. RoadLink is developing and validating its technology through the prototype and testing stages before larger-scale deployment.
What makes RoadLink different from conventional vehicle tracking?
RoadLink's architecture explores a distributed infrastructure model in which participating vehicles can also contribute to the communication network, rather than treating every vehicle only as a direct endpoint.
What is the long-term goal?
To develop an intelligent transportation infrastructure layer connecting vehicles, communication networks, gateways, data infrastructure, and applications.
Build the Infrastructure Before the Intelligence
RoadLink is developing the technical foundation for a more connected transportation ecosystem — one vehicle, one network node, and one layer of infrastructure at a time.