KEYTOP Ultrasonic Parking Guidance System Powering the World-Class HZMB Project
- David Wu

- Jun 30, 2021
- 2 min read
Updated: 7 days ago

The Hong Kong-Zhuhai-Macao Bridge (HZMB)** stands as one of the most ambitious infrastructure projects ever built. Spanning 55 kilometers across the Pearl River Delta, this engineering marvel connects Hong Kong, Macau, and Zhuhai, forming a critical transport link in the region.
With a design life of 120 years and a total investment of approximately USD 18.8 billion, the HZMB is not only a symbol of innovation—but also a benchmark for smart infrastructure integration.

President Mr.Xi launched the world longest sea bridge connecting HK 、Macau and Mainland

Smart Parking for a Mega Infrastructure
At the boundary crossing facility of the HZMB, managing traffic flow and parking efficiency is crucial. With over 7,000 parking spaces, traditional parking management methods would not be sufficient.
This is where KEYTOP’s ultrasonic parking guidance system plays a vital role.
As the designated smart parking solution provider, KEYTOP implemented a fully integrated parking guidance system designed to optimize vehicle flow, reduce congestion, and enhance user experience.
How the Ultrasonic Parking Guidance System Works
The ultrasonic parking guidance system is built around precision detection and real-time information display:
Ultrasonic Sensors + LED Indicators
Installed at each parking space, these sensors detect vehicle presence with high accuracy and instantly update the occupancy status.
Real-Time Data Collection
Each sensor communicates with the central system, ensuring up-to-date availability information across the entire parking facility.
Visual Guidance for Drivers
Drivers are guided efficiently to available spaces, reducing search time and minimizing traffic inside the parking area.
Key System Components at HZMB
1. Outdoor Entrance LED Display

Large LED screens at the entrance show real-time available parking spaces, helping drivers make quick decisions before entering.
2. Level Guidance Displays

Strategically placed displays indicate which floors have available spaces, optimizing vertical traffic distribution.
3. Indoor Directional Displays

Installed at key intersections inside the parking lot, these displays guide vehicles to the nearest available parking zones.

Together, these components form a seamless and intelligent parking ecosystem powered by the ultrasonic parking guidance system.
Why Ultrasonic Parking Guidance System is Ideal for Large-Scale Projects
For mega infrastructures like HZMB, choosing the right technology is critical. The ultrasonic parking guidance system offers:
High Accuracy Detection
Stable Performance in Indoor Environments
Scalability for Thousands of Parking Spaces
Cost-Effective Deployment Compared to Camera-Based Systems
These advantages make it a preferred solution for airports, commercial complexes, and cross-border facilities.
KEYTOP: Proven Expertise in Smart Parking
As a global leader in smart parking solutions, KEYTOP has been delivering advanced systems since 2006.
🌍 Exported to 60+ countries
🅿️ Over 20,000+ installations worldwide
🚀 Continuous innovation in parking technologies
The HZMB project is a testament to KEYTOP’s capability to handle large-scale, high-demand environments with precision and reliability.
Conclusion
The successful deployment of the ultrasonic parking guidance system at the Hong Kong-Zhuhai-Macao Bridge highlights how smart parking technology can transform complex infrastructure into efficient, user-friendly environments.
As urban mobility continues to evolve, solutions like KEYTOP’s ultrasonic parking guidance system will play a critical role in shaping the future of intelligent transportation.



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