Metro station Lighting

Metro stations are underground structures that differ from traditional above-ground buildings. Without natural light, the lighting fixtures in these stations need to be on for extended periods. Additionally, with high passenger traffic, the lighting must be brighter, and more lights are needed in busier areas. Passenger flow varies throughout the day and across different areas, requiring varied lighting levels at different times and places. Therefore, lighting design and fixture selection for metro stations must consider these unique characteristics.

Metro stations batten lightAs a vital modern transportation mode, the metro offers convenience, speed, and environmental benefits, providing efficient travel and a pleasant commuting experience. Lighting directly impacts the quality of service, operational safety, and costs. With the trend toward smart transportation, metro station lighting must become more intelligent and user-friendly to enhance passenger experience and comfort.

Key Features and Design Principles of Metro Stations Lighting Systems

Smart Control: The brightness of modern metro lighting systems is changed by the use of intelligent control technologies, considering passenger flow, time of day, and the level of external light to save energy and achieve better quality and comfort in lighting.

Categories of Lighting: The lighting in a metro is generally divided into two categories: general lighting and emergency lighting. General lighting involves public area lighting, ancillary room lighting, safety low-voltage lighting, interval lighting, guidance lighting, and advertisement lighting. Safety low-voltage lighting only is involved in evacuation and standby lighting.

Energy Consumption Analysis and Conservation Measures: Smart lighting systems provide detailed energy consumption analysis and adopt conservation measures to minimize energy consumption, such as LED fixtures, optimized lighting layouts, and dynamic lighting controls.

Maintenance Efficiency: Smart lighting systems provide an efficient means to monitor and maintain lighting equipment, reducing the needed frequency of on-site inspections by operational staff.

Principles of Metro Lighting

The design and operation of metro lighting should meet the needs of platforms, concourses, tunnels, entrances, and train interiors while considering energy efficiency, safety, ease of maintenance, and passenger comfort.

Metro lighting systems follow the electroluminescence principle: electrical energy is transformed into light energy. More specifically, LED fixtures have very small chips that emit light when electric current is passed through them, hence converting electric energy into bright light. This is the reason the efficiency of LED lights is pretty high, and heat radiation is very low based on the characteristic materials and structure. Typically, the fixtures of LED include red, green, and blue chips. Different levels of brightness and diverse colors can be obtained for various lighting purposes by controlling and regulating those chips.

Key Points in Metro Stations Lighting

Metro stations lighting plays a crucial role in the metro system. Here are some key points related to metro track lighting:

Safety Lighting: Metro stations and tunnels need sufficient lighting to ensure the safety of passengers and staff. Good lighting reduces the risk of accidents and helps passengers see directions and obstacles clearly.

Comfortable Experience: Good lighting design provides a comfortable riding experience. Appropriate brightness and color temperature can reduce eye strain and enhance passenger comfort.

Guidance and Navigation: Metro stations require clear signage and navigation lighting to help passengers quickly find exits, transfer points, and emergency exits.

Aesthetic Enhancement: Metro station and tunnel lighting can also beautify the environment. Using different light colors, effects, and decorative lighting can create a unique atmosphere and visual effect, enhancing the travel experience.

Energy Efficiency and Environmental Protection: Metro track lighting should consider energy efficiency and environmental factors. Using energy-efficient LED fixtures, smart dimming systems, and timers can reduce energy consumption and minimize environmental impact.

Metro-Station-LED-Linear-Lights

Components of Metro Stations Lighting Systems

Metro lighting systems are generally comprised of the fixtures, power supplies, wiring, switches, and control systems.

The most common LED light sources usually form the core of the metro lighting system. LED fixtures are highly adapted to lighting applications due to their low energy consumption, long life, and reduced heat dissipation. They power the required amount of electrical energy to facilitate the operation of fixtures.

The switching and control systems are the controlling centers of the metro lighting system. The switches control the on/off state, brightness, and color of the fixtures, and the control systems make the programmed control of the lights possible. It cannot only satisfy the needs of station and vehicle lighting usage but can also achieve energy saving, environmental protection, and the enhancement of passenger experience.

Specifications for Selecting Metro Station Lighting Fixtures

The selection of lighting fixtures for metro stations should be based on the specific lighting needs, safety standards, and energy-saving requirements.

Efficiency and Energy Savings: The lighting for a metro has to be highly efficient in terms of energy. For example, LED luminaries reach 120 lm/W for lamps with superior-quality chips.

Protection Level: Metro environments require a high level of fixture protection against the penetration of external particles or contaminants that will affect the lighting performance. Fixtures shall be rated for protection not lower than IP65.

Fire Resistance and Protection against Corrosion: Metro lighting fixtures should have such properties as a WF1 rating, be fire resistant to anti-corrosion, and use wires that are low smoke, halogen-free, and flame-retardant.

Color Rendering Index: A high CRI measures a color rendering index above 80, which is used in the metro lighting system to establish a good visual environment.

Emergency Lighting: Emergency lighting is indispensable for any metro lighting, given that it is a public transport system. There should be intelligent fire emergency lighting and evacuation indication systems to secure all the needs for illumination during an emergency.

Technical Specifications: The specified LED lighting equipment for metro environments will meet several specific technical requirements such as required light levels, emergency lighting, expected power density values, illumination quality, etc.

Customized fixtures Customized fixtures are another key in the metro lighting project. For example, in each station, LED recessed batten lights, LED Tri-Proof lights, and LED linear lights would have to be used to meet the specific design and functional requirements.

Installation and Maintenance: Fixtures that are easy to install and maintain will reduce long-term maintenance costs and improve the reliability of the lighting.

Lighting Modes: Metro lighting includes general lighting, guidance lighting, decorative lighting, interval lighting, and advertising lighting. Lighting fixtures should be appropriately selected to meet these needs because different areas have different requirements for lighting.

Specifications: Parameters like power range, luminous flux, efficiency, CRI and color temperature for LED panel lights shall be taken for selection based on the requirements of metro lighting.

When the metro lighting fixtures are being selected, there are parameters that need to be considered well, and these include, efficiency, level of protection, fire resistance, corrosion resistance, color rendering, emergency lighting requirements, and compliance of the technical specification of the failed equipment .and how customization and easy to install and maintain.

Metro Station Light Specification (V -Series):

LUMINAIRE INFORMATION
Model ZL-VSBLP18-2FT-XX ZL-VSBLP36-4FT-XX ZL-VSBLP44-5FT-XX
Rated Power 18W 36W 44W
Install Surface Mount/Suspended/Linkable
Protection Rating IP4X
Housing Steel+AL
Optics Polycarbonate Milky Diffuser
Connection Type Terminal Block or Linkable
Operating Temperature -20℃ to 40℃(Emergency version: 0℃ to 40℃)
Dimming (Option) Microwave Sensor - 3 Stepped Version(100%-20%-OFF)
Emergency (Option) 3 Hours+ @3.6W or 90Mins+@7--15W LiFePO4 Battery
PHOTOMETRIC
Luminous Efficacy 120-150lm/w
LED SMD2835
CCT 3000K/4000K/5000K/6000K
CRI 85
Beam Angle 120 degree
ELECTRICAL
Input power Supply AC200-240V, 50/60Hz / AC100-277V, 50/60Hz
Power Factor > 0.9
Useful Life@Ta25°(L70) 54,000 hours
Electrical Classification Class I
Dimensions 620*84*72mm 1220*84*72mm 1520*84*72mm

 

COMLED Metro Station Lighting Solutions

COMLED offers professional lighting solutions and high-quality products, providing a safe, efficient, and stable lighting environment for metro stations with energy-saving and eco-friendly high-efficiency COMLED batten lights, tunnel lights, low-bay lights, waterproof lights, and low-voltage safety lights.

Platform Lighting

The primary requirement for platform areas is clarity and brightness, allowing passengers to quickly and clearly see the platform, screen doors, route maps, and other critical information, ensuring safety and maximizing boarding efficiency. COMLED batten lights can be arranged along the central axis of the platform with high-quality PC material diffusers, providing uniform lighting without dark spots. Their high fire-resistance rating significantly enhances the safety of long-term lighting at metro stations.

In some stations, utilizing above-ground platforms can maximize natural light. By integrating a DALI dimming system with COMLED batten lights and smart drivers, the brightness of the lights can adapt to daylight variations, ensuring precise and flexible lighting control.

Entrance and Exit Passage Lighting

To seamlessly connect the lighting between entrance passages and station entrances, COMLED batten lights can be installed with surface-mounted brackets, facilitating ceiling wiring. With a high protection level, these fixtures prevent insects from entering, ensuring the longevity of entrance lights. Their built-in high-quality constant current drivers provide stable, flicker-free lighting, ensuring visual comfort for passengers entering the station.

Tunnel, Parking Lot, and Depot Lighting

The primary goal of metro tunnel lighting is to ensure safe train operation. COMLED provides custom tunnel lights that meet metro tunnel standards for moisture, dust, and vibration resistance, offering ample visibility for train operators and maintaining stable, safe performance during prolonged use.

Parking lots serve as temporary vehicle storage areas, while depots are for vehicle inspection, maintenance, and cleaning. COMLED uses low-bay lights, batten lights, and low-voltage safety lights to provide clear visibility and guidance, ensuring safe lighting for staff during operations.

Features and Functions of COMLED Metro Station Lighting Fixture

Manual Control: Install smart control panels or touchscreens in controlled areas to flexibly manage lighting fixtures (on/off and dimming). It also allows scene switching for easy management and adjustment of the lighting environment.

Timed Control: Automatically adjust the lighting fixtures' on/off and brightness according to preset schedules, including holiday modes and special situation reservations.

Automatic Control: Utilize motion sensors and light sensors to detect environmental conditions, automatically adjusting the lighting accordingly.

Dimming Control: Adjust the brightness of the lighting fixtures as needed, providing better energy savings and a more comfortable lighting environment.

Centralized Management: Integrate the intelligent lighting control system with the enterprise's internal Intranet through IP management devices, enabling centralized management of metro lighting.

System Integration: Integrate with third-party systems for data exchange and command interfacing, enabling functions such as fire alarm activation, lighting energy consumption data upload, and voice control command reception.

PARAMETER DATA (V -Series):

Model Input voltage Watt Sensor Dimming standby Emergency
ZL-VSBLP18-2FT-CN-V2 AC200-240V 18w x x
ZL-VSBLP36-4FT-CN-V2 AC200-240V 36w x x
ZL-VSBLP44-5FT-CN-V2 AC200-240V 44w x x
ZL-VSBLP18-2FT-CS-V2 AC200-240V 18w 100% / 20% /OFF x
ZL-VSBLP36-4FT-CS-V2 AC200-240V 36w 100% / 20% /OFF x
ZL-VSBLP44-5FT-CS-V2 AC200-240V 44w 100% / 20% /OFF x
ZL-VSBLP18-2FT-CE-V2 AC200-240V 18w x >3hrs@3.6W
ZL-VSBLP36-4FT-CE-V2 AC200-240V 36w x >3hrs@3.6W
ZL-VSBLP44-5FT-CE-V2 AC200-240V 44w x >3hrs@3.6W
ZL-VSBLP18-2FT-CES-V2 AC200-240V 18w 100% / 20% /OFF >3hrs@3.6W
ZL-VSBLP36-4FT-CES-V2 AC200-240V 36w 100% / 20% /OFF >3hrs@3.6W
ZL-VSBLP44-5FT-CES-V2 AC200-240V 44w 100% / 20% /OFF >3hrs@3.6W
ZL-VSBLP18-2FT-CN-V1 AC100-277V 18w x x
ZL-VSBLP36-4FT-CN-V1 AC100-277V 36w x x
ZL-VSBLP44-5FT-CN-V1 AC100-277V 44w x x
ZL-VSBLP18-2FT-CS-V1 AC100-277V 18w 100% / 20% /OFF x
ZL-VSBLP36-4FT-CS-V1 AC100-277V 36w 100% / 20% /OFF x
ZL-VSBLP44-5FT-CS-V1 AC100-277V 44w 100% / 20% /OFF x
ZL-VSBLP18-2FT-CE-V1 AC100-277V 18w x >90mins@7-15W
ZL-VSBLP36-4FT-CE-V1 AC100-277V 36w x >90mins@7-15W
ZL-VSBLP44-5FT-CE-V1 AC100-277V 44w x >90mins@7-15W
ZL-VSBLP18-2FT-CES-V1 AC100-277V 18w 100% / 20% /OFF >90mins@7-15W
ZL-VSBLP36-4FT-CES-V1 AC100-277V 36w 100% / 20% /OFF >90mins@7-15W
ZL-VSBLP44-5FT-CES-V1 AC100-277V 44w 100% / 20% /OFF >90mins@7-15W
Note: x -No this function

 

Application of Intelligent Lighting Control Systems in Metro Stations:

Automatic Dimming

At entrances and hallway areas, illuminance sensors are installed to monitor natural light levels and pedestrian movement, allowing for intelligent lighting control and brightness adjustment. For example, when there is sufficient natural light or no people are detected, the system can automatically turn off or dim the lights. Conversely, during nighttime or when people are detected, it can automatically turn on or brighten the lights, ensuring adequate illumination while saving energy.

For instance, at metro platform screen doors, smart radar detectors are installed. When a train is about to arrive, the lights near the doors brighten automatically. After the train departs, the lights revert to energy-saving mode, providing an intelligent and user-friendly lighting experience while significantly reducing electricity and maintenance costs, achieving both efficiency and energy savings.

Scene Control

Various scene modes can be preset based on the metro’s operational needs, such as:

  • Peak Mode: All public area lights in the concourse and platform levels are fully on.
  • Energy-Saving Mode: Some lights are turned off or dimmed.
  • Cleaning Mode: Only a few lights or those in cleaning areas are turned on.
  • Shutdown Mode: All normal public area lights are off, leaving only emergency lights on.

Fault Monitoring

The system can monitor the operational status of lighting equipment in real-time, detecting issues like whether a COMLED batten light is damaged or if the power supply is normal. This allows for timely maintenance and repair, improving equipment reliability and maintenance efficiency.

Application of Emergency Evacuation Lighting Systems in Metro Stations

Emergency Lighting Fixtures

In emergencies such as fires, power outages, or earthquakes, emergency lighting fixtures immediately activate, providing essential illumination for passengers and staff. This ensures they can clearly identify safe exits and evacuation routes in smoke, darkness, or chaos.

Emergency Sign Lights

Emergency sign lights, such as direction indicators and exit signs, clearly mark evacuation routes, helping people evacuate quickly and orderly.

Intelligent Monitoring and Management

Modern metro stations typically use centralized control designs for their emergency lighting systems. The status of all emergency lights can be managed through an intelligent system, facilitating routine maintenance and rapid response in emergencies. In a crisis, the system intelligently controls the operation of indicator lights. Controllers use a bus network to monitor each terminal in real-time, automatically sending commands to each terminal. The terminals then perform actions such as flashing, changing direction, or turning lights on and off, guiding people safely to evacuation points.

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