NLT Group’s intelligent traffic signal system optimizes operations for modern urban environments

Intelligent Traffic Signal Systems (ITS) have become an indispensable solution amid rapid urbanization and increasing vehicle density, which make traffic management ever more complex. By integrating AI technology, real-time sensors and cameras, and a centralized operations platform, these systems not only optimize traffic flow but also enhance safety and operational efficiency across urban areas.

With extensive experience implementing ITS projects in multiple provinces and cities, NLT Group is proud to be a provider of intelligent traffic signal solutions that help cities operate more smoothly, safely, and sustainably.

The role of intelligent traffic signal systems in urban management

Intelligent traffic signal systems act as the “brain” of traffic coordination, controlling vehicle flows in real time and reducing congestion at intersections. By adjusting signal timing based on actual conditions, these systems improve traffic efficiency while minimizing accidents and enhancing road safety for the public. They also deliver accurate data to support optimal traffic control decisions.

This is a key pillar in building modern smart cities, supporting area connectivity and optimizing the use of transport infrastructure. Beyond congestion mitigation, intelligent traffic signal systems enable monitoring, analysis, and traffic forecasting, contributing to improved quality of life for residents and stronger urban governance.

Benefits of NLT Group’s intelligent traffic signal system

Reducing congestion and optimizing traffic flow at intersections

NLT Group’s system leverages AI, sensors, and cameras to collect real-time traffic data. Based on parameters such as vehicle density and speed, the system automatically adjusts signal cycles, reducing waiting times and balancing traffic distribution. This optimizes traffic flow at critical intersections, eases congestion, and improves overall traffic performance.

Enhancing road safety and reducing accidents

With smart sensors and cameras, the system can detect risky behaviors such as red-light running, speeding, and sudden lane changes. When incidents are detected, it issues alerts and adjusts signal timing to reduce collision risks, enhancing safety at intersections and in high-traffic areas.

Operational management and transport infrastructure planning
NLT Group’s intelligent traffic signal system provides detailed reports on traffic volume, speed, density, and waiting times at intersections. These insights enable authorities to evaluate system performance and plan infrastructure upgrades effectively. Data-driven analysis helps optimize transport infrastructure, reduce congestion, and improve urban mobility.

Lower operating costs

The system reduces labor costs by enabling automated, 24/7 traffic control without on-site staff at intersections. Alerts and signal adjustments are handled automatically in real time, cutting maintenance expenses and minimizing manual intervention. This leads to cost savings while ensuring continuous, efficient traffic operations.

>> See more: The advantages of NLT Group’s intelligent transportation solutions in harsh Northern Vietnam weather conditions

Core components of NLT Group’s intelligent traffic signal system

Smart signal lights

NLT Group’s traffic lights use high-power, long-life LED technology that meets urban traffic lighting standards. They integrate:

• Intelligent controllers capable of receiving real-time commands from the central system
• Data connectivity modules (Ethernet/4G/5G) for instant status updates
• Flexible configurations for three-color signals, priority lanes, buses, bicycles, and pedestrian crossings

AI cameras, sensors, and traffic radar

Input data is critical to ITS performance. NLT Group deploys a synchronized suite of measurement devices, including:

• AI cameras for violation detection, vehicle classification, and lane-by-lane traffic statistics
• Multi-point traffic sensors measuring density, speed, and direction to support real-time signal control
• Doppler radar accurately measuring speed even in heavy rain or low-light conditions, ensuring precision at complex intersections

>> See more: NLT Group’s AI camera technology transforming modern smart traffic in the era of Industry 4.0

Central traffic controllers

NLT Group’s controllers are designed for stable 24/7 urban operation, featuring:

• High-speed CPUs processing real-time data from cameras and radar
• Multiple operating modes: fixed-time, semi-adaptive, and real-time optimization
• Continuous connectivity with the ITS center for on-demand signal adjustments
• Historical data storage for analysis and evaluation

ITS management platform and traffic data system

Built on a smart traffic platform model, NLT Group’s system enables authorities to manage the entire network through a single interface:

• Direct signal control for individual intersections or groups of intersections
• Real-time traffic maps showing density, speed, and movement direction
• Instant alerts for incidents such as collisions, abnormal congestion, or equipment faults
• Big-data analytics and traffic forecasting to support infrastructure planning and operational strategy adjustments

NLT Group applies ITS technology in intelligent traffic signal systems

Adaptive signal control

NLT Group’s intelligent traffic signal system uses adaptive signal control, allowing signal timings to automatically adjust based on real-time traffic density collected from cameras, radar, and sensors. Signal cycles and phases are optimized second by second, enabling green lights to be extended or shortened as needed to adapt to peak hours, special events, or unexpected situations. This mechanism has been deployed by NLT Group at pilot intersections in Ho Chi Minh City and has demonstrated clear effectiveness in reducing congestion and improving traffic flow.

>> See more: Practical results from NLT Group’s intelligent traffic pilot projects in Ho Chi Minh City

Optimizing traffic flow with AI & Big Data

The system leverages AI and Big Data to analyze traffic volume, speed, density, and movement patterns of different vehicle groups in real time. As a result, it can quickly identify bottlenecks and congestion trends at intersections, then automatically optimize signal cycles and redistribute traffic flows more efficiently.

Integration with the city’s traffic operations center

NLT Group’s ITS solutions are fully integrated with provincial and municipal traffic operations centers, enhancing traffic monitoring and coordination capabilities. The intelligent traffic signal system transmits real-time data from cameras, radar, and signal lights to the control center, enabling direct control of individual intersections or clusters, while monitoring device status and operational performance on a simulated traffic map. Thanks to high compatibility, local authorities can deploy ITS in phases while maintaining synchronization, stability, and easy scalability for the future.

Early warning and real-time incident management

NLT Group’s intelligent traffic signal system incorporates early-warning mechanisms to quickly detect and address issues such as red-light violations, speeding, abnormal congestion caused by sudden traffic surges, and equipment failures including connectivity loss, signal faults, or controller cabinet errors. All alerts are sent immediately to the operations center, enabling rapid response by authorities, reducing accident risks, and ensuring smooth, stable traffic flow in real time.

Intelligent traffic signal solutions from NLT Group

ITS design and consulting tailored to each city

Each city has its own characteristics in terms of traffic volume, intersection density, and driving behavior. NLT Group’s intelligent traffic signal solutions follow a structured approach: surveying existing signal infrastructure, cameras, and sensors; analyzing traffic data by time frame, route, and key areas; proposing adaptive or semi-adaptive control models suitable for different intersection groups; and building an open ITS architecture that ensures scalability in line with local development phases.

Supply of standard-compliant signal equipment, cameras, sensors, and controllers

NLT Group provides equipment that meets national standards and is suitable for outdoor deployment in Vietnam, including high-durability intelligent LED traffic lights with clear visibility in all weather conditions; AI cameras and traffic radar for speed measurement, traffic counting, and red-light violation detection; traffic sensors for real-time monitoring of density and flow; and high-performance traffic controllers supporting multiple control modes.

Centralized traffic management system

NLT Group owns the ITS Control Platform, an intelligent traffic operations platform that enables monitoring of signal lights, cameras, and sensors across the entire city on a digital map; direct signal control at individual intersections or by clusters and corridors; and AI- and Big Data–based traffic analysis to forecast congestion and generate alerts for equipment failures, traffic violations, or abnormal flow conditions.

The platform is designed with an open architecture, allowing additional modules such as flood warnings, parking management, bus priority signaling, or emergency vehicle prioritization.

Seamless integration with existing local intelligent transport systems

One of the key strengths of NLT Group’s intelligent traffic signal system is its multi-platform integration capability, allowing local authorities to avoid replacing entire existing systems. NLT Group’s solutions can connect with provincial or municipal traffic control centers, existing camera systems (CCTV and urban security monitoring), legacy signal controllers via standard protocols, and other intelligent transport systems already operating on major routes.

This level of integration helps reduce investment costs, shorten deployment timelines, and ensure continuity in urban traffic operations.

Intelligent traffic signal systems are the key for modern cities to operate efficiently, safely, and sustainably. With ITS, AI, and real-time control technologies, NLT Group delivers comprehensive solutions that optimize traffic flow, reduce congestion, and enhance traffic management capabilities for cities and provinces.

If you are looking for an intelligent traffic signal solution with real-time signal control or need consultation on ITS deployment for urban areas, please contact NLT Group for in-depth support.

Nam Long Technology Investment Group (NLT Group)

• Hotline: 0911 379 581 
• Email: kinhdoanh@nlt-group.com
• TIN: 0313339640
• Address: 43T Ho Van Hue Street, Duc Nhuan Ward, Ho Chi Minh City