Construction Site Challenges and TRAILS Implementation
Indoor Positioning System for Enhanced Tunnel Construction Safety
In tunnel construction sites, excavation and concrete lining work occur simultaneously, with 25-ton dump trucks and concrete mixer trucks operating in confined spaces. Visual monitoring alone is insufficient for maintaining safe distances between vehicles, forcing workers to rely on horns for position confirmation. The environment presents unique challenges: 100% humidity and the need to continuously install new positioning beacons as excavation progresses. Alternative solutions (cameras, SLAM, geomagnetic sensors) prove impractical under these harsh conditions.

Current solutions cannot effectively track worker and vehicle positions to address::
- 1. Safety Enhancement in Tunnels - Need to prevent collisions between heavy machinery/dump trucks and workers while ensuring comprehensive safety management.
- 2. Reducing Vehicle Standby Time per Excavation Cycle - Goal to optimize vehicle operations and improve productivity.
- 3. Visualizing Construction Progress for Enhanced Productivity - Need to efficiently record and report when and where each worker performs their tasks.
What TRAILS Can Do
TRAILS is a next-generation location intelligence system that requires no infrastructure installation and enables:
Using smartphones and smartwatches, TRAILS sends real-time alerts when vehicles approach workers. The system continuously monitors the relative positions of workers and vehicles in tunnels to prevent accidents.
Through predictive analytics, TRAILS optimizes vehicle movement. This ensures smooth traffic flow while maintaining safety standards.
The system automatically records worker locations and activities, streamlining daily report creation. This significantly reduces paperwork while maintaining accurate records.
