Classification of Regional Traffic Control Methods

There are various ways to control the traffic at multiple intersections in urban areas, which can generally be classified according to control strategies and control structures.

Classification by control strategy:

（1）Regional traffic fixed-time offline control method: This method is based on the historical statistical data and current situation survey data of traffic flow within the region. It uses a computer for offline calculation and optimization processing to obtain an optimal signal timing scheme. The timing scheme will be stored in the control computer for the signal controller to select under different traffic conditions. This method is suitable for regional road networks with relatively stable traffic flow.

(2) Regional traffic adaptive online control method: This method is based on the real-time traffic flow data collected by vehicle detectors installed in the regional road network. It conducts online calculation and optimization processing, and this method can well adapt to the random changes of traffic flow.

Classification by control structure:

（1）Regional traffic centralized computer control structure method: This method connects all the signal machines in the region into a network, and uses a small or medium-sized computer or multiple computers connected online to centrally control the entire system. It belongs to the master-slave distributed control method, and its principle and structure are very simple.

(2) Regional traffic hierarchical computer control structure method: This method divides the entire traffic signal control system into two subsystems, an upper layer and a lower layer. The upper layer subsystem receives the intersection timing schemes from the lower layer subsystem, conducts coordinated analysis and processing of these timing schemes from an overall perspective, so as to correct the timing schemes of the lower layer subsystem; the lower layer subsystem then makes necessary adjustments according to the corrected schemes. The upper layer subsystem mainly completes the task of coordinated optimization of the entire system, and the lower layer subsystem mainly completes the task of executing the timing adjustment of intersections within the region.

 About Shenzhen Starlight Road Technology Co., Ltd.:
Established in 2011, Shenzhen Starlight Road Technology Co., Ltd. is a national high-tech enterprise specializing in the R&D, production, and sales of intelligent traffic products. With 15 years of dedication and relentless effort, the company has accumulated extensive experience. Its main products include:

•  Intersection Smart Networked traffic Signal Controller with English operation interface
• Single-Point Intersection Traffic Signal Controller
• LED Traffic Signal Lights
• LED Countdown Timer
• Smart Crosswalk Alert Beacon
• Integrated Traffic Signal Lights
• Sectional Pedestrian Crossing Request System
• Voice Prompt Device (Blind Clock)
• Mobile radar speed check sign
• Solar-powered radar speed feedback sign
• Solar-powered radar speed sign with vehicle license plate recognition
• Portable solar-powered traffic signal light
• Solar-powered warning traffic signal light
• Smart zebra crossing Road-embedded cast iron road stud
• LED Smart crosswalk Road-embedded cast iron Block
• Smart zebra crossing pavement-embedded pedestrian signal light
• LED Canopy Warning Signal Light
• LED Traffic Guidance Display Screen
• Smart Curve Safety Detection System

In addition, the LED traffic signal lights of Starlight Road have been exported to many overseas countries and regions. For example: Traffic signal lights in Cancun, Mexico; Solar-powered traffic signal lights in Guanajuato, Mexico; Traffic signal lights in Bangkok, Thailand; Solar-powered traffic signal lights in Chiang Mai, Thailand; Traffic signal lights in Riyadh, Saudi Arabia; Traffic warning lights in Kuala Lumpur, Malaysia; Traffic warning lights in Penang, Malaysia; Traffic signal lights in Vietnam; Traffic signal lights in Indonesia; Traffic signal lights in Cambodia; Traffic signal lights in the Philippines; Traffic signal lights in Laos; Traffic signal lights in Myanmar; Traffic signal lights in Brunei; Traffic signal lights in Turkmenabat, Turkmenistan; Traffic signal lights in Dashoguz, Turkmenistan; Traffic signal lights in Mary, Turkmenistan; Solar-powered traffic signal lights in Salto, Uruguay; Traffic signal lights in Fray Bentos, Uruguay; Traffic warning lights in São Paulo, Brazil; Traffic warning lights in Rio de Janeiro, Brazil; Traffic warning lights in Brasília, Brazil; Traffic signal lights in Salvador, Brazil; Traffic signal lights in Fortaleza, Brazil; Traffic signal lights in Dili, Timor-Leste; Traffic signal lights in Baucau, Timor-Leste; Traffic signal lights in Maliana, Timor-Leste; Traffic signal lights in Suai, Timor-Leste; Traffic signal lights in Madrid, Spain; Traffic signal lights in Barcelona, Spain; Traffic signal lights in Seville, Spain; Traffic signal lights in Málaga, Spain; Traffic signal lights in Alicante, Spain; Traffic signal lights in Ronda, Spain; Traffic signal lights in Doha, Qatar; Solar-powered traffic signal lights in Al Khor, Qatar; Traffic signal lights in Dhoby Ghaut, Singapore; Warning lights in Tampines, Singapore; Warning lights in Woodlands, Singapore; Warning lights in The Shoppes at Marina Bay Sands, Singapore; Traffic signal lights in Al Ahmadi, Kuwait; Traffic signal lights in Bandar Seri Begawan, Brunei; Traffic signal lights in Belait, Brunei; Traffic warning lights in Tel Aviv, Israel; Traffic warning lights in Haifa, Israel; Traffic warning lights in Manama, Bahrain; Solar-powered traffic signal lights in Muharraq, Bahrain; Solar-powered traffic signal lights in Dubai, the United Arab Emirates; Traffic signal lights in Abu Dhabi, the United Arab Emirates; Traffic signal lights in Ajman, the United Arab Emirates; Traffic signal lights in Johannesburg, South Africa; Traffic signal lights in Cape Town, South Africa; Traffic signal lights in Baghdad, Iraq; Traffic signal lights in Basra, Iraq; Traffic signal lights in Mosul, Iraq.

For more information on intelligent traffic solutions, please visit the Starlight Road ITS official website: //www.starlightroadits.com/ or contact us via email.