Overview

The Zengjiayan Tunnel is a vital traffic corridor in Chongqing, connecting the Liangjiang New Area, Jiangbei District, and Yuzhong District. With heavy daily traffic volumes, ensuring tunnel safety and operational efficiency is a critical challenge. To address this, a smart monitoring system powered by the ClairWav-U24 tunnel radar was deployed.

Technology Solution

The ClairWav-U24 is specifically designed for tunnel environments, which are prone to multipath effects (signal reflections that distort detection). It employs a combination of advanced technologies to overcome this:

- MIMO antenna arrays for enhanced spatial resolution

- Super-resolution angle estimation algorithms to distinguish real targets from false reflections

- AI machine learning that continuously adapts to the tunnel's unique characteristics, improving detection accuracy over time

Key Features

- Tracks up to 128 targets simultaneously

- Detection range up to 400 meters

- 90° horizontal coverage, suitable for circular, square, or curved tunnels

- All-weather operation with IP67-rated durability

- Low maintenance and simple installation

Results

The system delivers real-time, automated monitoring of traffic conditions, accurately collecting data on:

- Traffic density, average speed, and lane occupancy

- Vehicle position, direction, and trajectory

This enables instant detection of traffic incidents (e.g., sudden stops or stalled vehicles) and rapid alerting for emergency response. The system also supports tracking of key vehicles (e.g., large trucks) and provides early warnings to help prevent accidents.

Conclusion

The ClairWav-U24 has significantly enhanced safety and traffic management at the Zengjiayan Tunnel. By delivering precise, real-time data and instant incident alerts, it ensures the stable and secure operation of this critical urban route—demonstrating how advanced radar technology can effectively solve the unique challenges of tunnel monitoring in smart city infrastructure.