Poor lighting at a terminal is recognizable by dark zones on driving routes and loading docks, glare for crane operators and drivers, blurry visibility of markings and obstacles, and frequent complaints from employees about fatigue or headaches. These are not minor annoyances—they are direct safety risks in an environment where heavy vehicles, cranes, and people operate in close proximity. In this article, we answer the most frequently asked questions about lighting problems at terminals.
What are the dangers of poor lighting in a terminal?
Insufficient lighting significantly increases the risk of serious accidents. When driving routes, loading docks, or storage areas are too dark, drivers see obstacles too late, crane operators miss critical reference points, and pedestrians become invisible to vehicle drivers. In an environment with 24/7 operations and heavy equipment, the consequences of a moment of poor visibility are immediately life-threatening.
Furthermore, inadequate lighting undermines operational continuity. Errors during loading and unloading, damaged cargo, delays, and higher failure costs can all be traced back to insufficient visibility. Ports and terminals where every minute counts, that's a cost that quickly adds up.
The most common safety risks in a poorly lit terminal are:
- Increased risk of collisions between vehicles and pedestrians
- Reduced visibility for crane operators at height
- Invisible markings, lanes, and safety zone indicators
- Higher chance of loading errors and damaged containers or goods
- Increased mental workload and fatigue in employees
What are the most common lighting complaints at terminals?
Operators in cabins and employees on the work floor typically complain about the same issues: uneven light distribution with harsh dark zones, glare from poorly aimed fixtures, yellow or washed-out light that degrades color and contrast, and fixtures that have significantly deteriorated in light output after years of service.
In practice, the following problems are most frequently reported:
- Dark spots between light poles, especially on wide lanes or large storage areas
- Blinding glare door lighting fixtures that shine directly into the line of sight of crane operators or truck drivers
- Poor color rendering which makes colors of containers, markings, or warning signs difficult to distinguish
- Flickering or failed fixtures that are not replaced in a timely manner
- Excessive light pollution surrounding areas or the public road
Many of these complaints are a result of outdated fixtures or a lighting design that is not suited to the terminal's specific layout and activities.
How do you measure if the lighting at a terminal is sufficient?
The standard measuring instrument is a lux meter, which records the illuminance at working surface height. The measured values are compared with the current standards for industrial outdoor locations and workplaces. In addition to the absolute light intensity, uniformity is also important: the difference between the brightest and darkest areas must not be too large.
A professional lighting measurement must include at least the following steps: measuring multiple points on travel routes and work zones, calculating the average illuminance and the uniformity ratio, and verifying the results against the NEN-EN standards for the relevant workplace. For crane cabins and other specific work positions, additional requirements apply for vertical illuminance and glare limitation.
Do you want to know what the right light output means for your situation? The page about luminous flux provides a clear overview of the relevant concepts and metrics.
When is it time to replace terminal lighting?
Terminal lighting needs replacement when fixtures have lost more than 30 percent of their original light output, when maintenance and repair costs structurally exceed replacement costs, or when the lighting no longer meets current safety standards. For traditional fixtures such as high-pressure sodium or metal halide lamps, this typically applies after five to eight years of intensive use.
Concrete signs that replacement is necessary:
- Fixtures that emit visibly yellow, orange, or uneven light
- Frequent shutdowns or long startup times
- Rising energy costs with no change in usage
- Employees who chronically complain about poor visibility
- Fittings no longer available for spare parts
The transition to LED floodlights delivers not only better lighting performance but also significant energy savings, which amply justifies the investment in the long run.
What are the requirements for lighting at an industrial site or terminal?
For lighting on an industrial site or terminal, standards from the EN 12464 series (workplace lighting) and the NEN-EN 13201 series (road lighting) apply. The minimum illuminance for driving routes on outdoor areas typically ranges between 20 and 50 lux, while active work zones such as loading docks and crane paths require higher values. In addition, IP classification, impact resistance, and in some cases ATEX certification play a role.
For terminals, the following technical requirements are most relevant:
- Illuminance minimum in accordance with EN 12464-2 for outdoor workplaces
- Uniformity ratio between minimum and average illuminance of at least 0.25 to 0.40 depending on the zone
- IP rating minimum IP65 for outdoor installation, higher classes for dust or water jets
- Glare limitation: Low UGR value for zones where operators and drivers work
- Color rendering: minimum Ra 65 for general outdoor lighting, Ra 80 or higher for work areas where color recognition is critical
More information about IP and IK ratings can be found on the page about IP and IK ratings.
How to prevent glare from terminal lighting for crane operators and drivers?
Glare is prevented by selecting luminaires with a controlled beam and a low UGR value, and by carefully aligning the placement and direction of light poles with the sightlines of crane operators and drivers. Full-cutoff luminaires, which direct light strictly downwards with no emission above the horizontal axis, are the most effective solution for this.
In the design of terminal lighting, the following measures are decisive:
- Use of luminaires with asymmetric or controlled optics that direct light precisely where it is needed
- Positioning of light poles outside the direct line of sight of crane cabins
- Application of full-cutoff technology to prevent direct light incidence into operators' eyes
- Adjustment of mast height and tilt angle to the specific working height of cranes at the terminal.
Glare is not just a comfort issue. For crane operators working at high altitudes with limited visibility, direct light can lead to serious operational errors. A good lighting design always takes into account the specific viewing positions of all users on site. Also see the specific information about lighting for port cranes for more technical context.
Examples from practice: DFDS Terminal Lighting
A striking example of how terminal lighting issues are tackled concretely is the project at DFDS in Vlaardingen. This shipping company operates a busy terminal where loading and unloading continuously occur at night. The existing installation consisted of outdated high-pressure sodium fixtures that not only consumed a lot of energy but also provided uneven light distribution with disturbing dark zones on the driving routes and loading docks.
The technical challenge lay in several aspects simultaneously. The new fixtures had to meet strict glare limitation requirements, as crane operators and truck drivers work on the same site from different viewing angles. In addition, the salt load due to the proximity of the water was a determining factor in material selection: only fixtures with a high IP rating and corrosion-resistant housing were considered. Furthermore, maintenance had to cause as little disruption as possible to nighttime operations, which called for fixtures with a long lifespan and low failure rate.
Full cut-off LED fixtures with asymmetric optics were chosen, precisely tailored to the specific layout of the terminal. This greatly improved lighting uniformity and eliminated the dark zones that previously created hazardous situations. The energy savings compared to the previous situation exceeded 60 percent. The main lesson that directly relates to this article: custom lighting design – taking into account sightlines, mast positions, and environmental factors such as corrosion and salt load – is essential for systematically eliminating glare and dark zones. More similar projects can be found at DFDS project page.
How JEL Products Helps Solve Lighting Problems at Terminals
Terminals dealing with poor lighting, glare, or outdated fixtures can count on a comprehensive solution from JEL Products. As a specialist in industrial LED lighting for ports and terminals, JEL Products handles the entire process: from lighting design and product selection to installation, commissioning, and maintenance.
What JEL Products specifically offers:
- Proprietary brands DCbright and DarkLicht, developed for harsh industrial environments
- Full-cutoff optics and glare-free technology specifically suited for crane operators and drivers
- Fixtures with high IP ratings and resistance to sea air, corrosion, and extreme temperatures
- ISO9001 and VCA** certified, with proven references in ports and terminals worldwide
- Full custom lighting advice, including light calculations and norm compliance testing
Do you have questions about the lighting quality at your terminal or would you like to know which solution best suits your situation? Get in touch Contact JEL Products for a no-obligation consultation.