Road Infrastructure
Continuous GNSS Coverage for Road Operators,
Tunnels, Maintenance & Smart Mobility
SubWAVE™ provides seamless GNSS continuity in all environments where satellite signals fail: tunnels, covered roads, dense urban infrastructure, underground belts and critical road assets.
For road operators, maintenance teams, emergency services, and future autonomous transport, SubWAVE™ enables safe, efficient and GPS-enabled operations everywhere.
Why Road Operators Need GNSS Continuity
GNSS positioning is essential for modern road-sector operations. Yet, tunnels and underground structures create blind zones that disrupt:
- Public navigation (Google Maps, Waze, OEM navigation)
- Emergency call location (E112 /E 911)
- Asset management & inspection
- Maintenance workflows
- Fleet & logistics monitoring
- Connected Vehicle, ADAS & autonomous driving
- V2X / C-ITS positioning
- Incident response & rescue force dispatching
SubWAVE™ eliminates al GNSS blind spots by extending genuine GPS / GNSS signals underground.
What SubWAVE™ Brings to Road Operators
Maintenance Efficiency & Asset Localization
- Locate small defects before they escalate
- Entire maintenance workflow becomes GPS-based (inside tunnels too)
- Isolated workers can be accurately tracked
- Operators can visualize anomalies directly on maps
- Avoid repeated inspections and unnecessary interventions
Benefit for road operators: fewer blind interventions, fewer errors, better productivity.
Increased Safety & Emergency Response
SubWAVE™ provides caller location for emergency services inside tunnels, ensuring compliance with E112 / E911 standards.
- Rescue teams are continuously geolocated
- Dispatch centers optimize ETA
- Precise guidance available even underground
- Life-saving information delivered instantly
This directly increases tunnel safety and reduces intervention times.
Continuity for Public Guidance & Mobility Services
SubWAVE™ enables uninterrupted navigation for:
- Private cars
- Trucks
- Public transport
- Logistics fleets
- Visitors and commuters
Traffic inside tunnels can be taken into account for route computation, reducing congestion and accidents.
Enabler of Smart Mobility, V2X & Autonomous Driving
SubWAVE™ provides the GNSS-ready environment required for:
- Truck Platooning (tested in Mont-Blanc Tunnel)
- ADAS continuity
- Connected Vehicle services (V2X)
- Safe transitions between open-sky and tunnel environments
- Autonomous driving inside covered areas
Syntony GNSS is an active member of 5GAA, shaping the future of mobility positioning.
Road-Sector References
Hong-Kong – Central-Wan Chai Bypass
Targeted benefits:
- E911/E112 compliance
- Continuous public navigation
- GNSS coverage for emergency operations
How SubWAVE™ Works
SubWAVE™ is a real-time GPS emulator that retransmits genuine GNSS signals through existing telecom infrastructure (leaky feeders, antennas), enabling receivers to compute natural positions underground.
Key technical:
- Real GPS signal (not repeated with coordinates from above ground)
- Seamless switching from outdoor to underground
- Compatible with any device equipped with GPS / GNSS receiver (smartphones, P25 / TETRA, fleet trackers, automotive receivers)
- Software-defined architecture enabling infrastructure management, complex monitoring, updates, etc.
- Evolves with new GNSS constellations
This makes SubWAVE™ a future-proof solution for road infrastructures.