By Del Williams, Grote Industries

For fleet managers of construction/upfit vehicles with staff working in dangerous
roadside, off-road, or construction site conditions, using the right quality of
lighting can be the difference between life and death.

Roadside crews especially need effective hazard/strobe lights to warn nearby
drivers of danger to prevent them from driving into the work zone. But even off-
road or building site construction crews need similar protection to keep any traffic
or work vehicles away from their workspace.

In these cases, safety is determined not just by using bright lights on the vehicle,
but by producing optimal light quality to fully illuminate the environment and
attract the attention of those nearby.

Proper lighting is also required to effectively light up the ground and
surroundings, so the construction/upfit vehicle will not be driven or backed into a
ditch, off a cliff or into any unsafe condition, in what otherwise can sometimes be
complete darkness.

In addition, effective lighting is also needed at the jobsite, so construction
workers can safely and efficiently complete any necessary tasks without
endangering themselves or others. This includes effectively lighting up the scene
and any work surfaces, so tools or equipment can be quickly accessed and
safely used.

For versatile construction work trucks, this may require effectively lighting up
open cargo areas, material racks, or hauling platforms for large-item storage.
For accessing often-used equipment, external compartments, or over-and-under
body toolboxes, these areas may also need to be lit up.

When making such lighting choices for upfit vehicles, working with an expert can
help to optimize these lighting options for safety and productivity. The end result
often reduces worker fatigue, stress, and error, while dramatically reducing
maintenance, repair and replacement.

Hazard/Warning Lights

With so many distracted drivers today, it is critically important to get the attention
of nearby drivers to protect any construction workers that could be in harm’s way.

So, typically, SAE Class 2 warning lights are used for construction vehicles that
work along roadsides, while Class 1 warning lights (with four times the intensity
of Class 2 lights) are used for emergency vehicles like fire, police, and
ambulance. A variety of colors are also used, such as red for emergency
vehicles and amber for vehicles that obstruct or impede traffic.

“To alert other drivers, when service vehicles may unexpectedly stop, turn, or
move out of regular traffic flow, it is easy to incorporate strobe lights in hideaway
areas such as in headlamp, tail, turn, or back up lamps that do not require
additional mounting. Beacons or bar strobes can also be added. There are
many options,” says Mark Blackbird, Director of National Fleet Sales at Grote
Industries, a U.S.-based manufacturer and expert in vehicle lighting and safety
systems.

Ground Lighting

When upfitted construction vehicles have to drive or back up over uncertain
terrain at night – sometimes in complete blackness – it is crucial to have good ground lighting, so the vehicle can safely navigate obstacles and does not end up
in a ditch, hole, or other hazard.

While some manufacturers still use incandescent or halogen lights for ground
lighting, these tend to fail prematurely due to short bulb life and high heat, which
can put construction workers at risk.

Instead, Blackbird recommends the use of advanced LED lights, which can last
up to 10 times longer than incandescent or halogen bulbs, with much lower
power consumption.

Just as important, such LEDs can provide significantly better light quality, which
equates to better visibility and safety in dark environments, where there may be
no other nearby light source

“Unlike traditional bulbs, the best LED lights today also can provide an even,
high-quality white light color that is easier on the eyes and provides a contrast
similar to natural sunlight for better visibility,” says Blackbird.

All ground lights should also be mounted below the vehicle shining downward,
typically at a – 40° inclination, so the actual light source is not visible to the
construction vehicle driver or others on the scene. “You don’t want to directly
view the light source providing the ground lighting, or it can dilate your pupils, so
your eyes are no longer adjusted for nighttime viewing,” explains Blackbird.

Scene Lighting

Scene lighting is used when high-powered, long-range illumination is required
from a construction vehicle, and usually takes the form of work lamps. Again,
advanced LEDs are used when safety is paramount, and night must essentially
be turned into day. This can help to eliminate stumbles, trips, falls, and work-
related errors due to poor visibility.

However, there are different types of construction scene lighting, some of which
are better suited for specific tasks.

“When construction work area lights are used on the rear of the vehicle, flood or
wide flood LED lights cover the broadest area,” says Blackbird. “To light up an
area at a distance, we recommend trapezoid or combination light patterns. For
the longest distance viewing, a spot light or pencil beam type pattern is usually
the best choice.”

In terms of light quality, LEDs are far superior to halogens. Because the color of
LEDs is closer to that of daylight than the yellowish hue of halogens, it appears
brighter and can illuminate details of objects in the distance better.

LEDs also help construction workers see more at the edge of the scene, where
traditional lamps tend to fade out. This improves safety and reduces eye strain
since it helps the worker more quickly and easily spot potential dangers and
other important details. For the same reason, it also can increase worker
productivity, particularly when the task lasts for many hours.

Surface Lighting

Typically, surface lighting is called for when safe footing up steps or quick access
to construction tools, equipment, and materials in compartments, truck beds and
cargo areas is required.

While this can be accomplished by mounting LED lamps on the side of steps, or
at the ends of compartments, an increasingly popular alternative is to install LED
light strips wherever needed. Advances in thin-film LED technology not only
produce brighter illumination, but do so using paper-thin, ultra-light strips that can
be easily installed into the existing lighting power system.

The most rugged are resistant to damage from impacts, waterproof, able to
withstand pressure washing with hot water, and resistant to the most common
chemicals associated with vehicles in the event of exposure or spills, including
motor oil, diesel fuel, battery acid, gasoline, and brake fluid. Installation usually
involves just peeling off double-sided tape and pressing the LED strips into place.

The bottom line is that any construction fleet manager of upfitted vehicles can
create a significantly safer, more productive lit environment for their staff working
in the field.

Those who consult with a lighting specialist can not only optimize such choices,
but also save dramatically on maintenance, repair and replacement over the
service life of the vehicle fleet.

The Future of Lighting

The future of LED lighting looks bright. In the next decade, the lighting experts
expect for the LED category to expand as more companies in the construction
industry recognize the true value.

Another expansion will be that of smart lighting options that can be controlled
remotely with a mobile app.

Since 1901, innovation has been the hallmark of Grote Industries. From durable,
easy to see stop lights to the latest in LED lighting technology, Grote has been
leading the way in advanced vehicle system solutions from early in the last
century right up to today. With these innovations, Grote has helped millions of
people throughout North America and the world benefit from the innovation and
design excellence of Grote products. For more information, contact Grote at 2600
Lanier Drive, Madison, Indiana 47250; phone: +1 (800) 628-0809; e-mail:
info@grote.com; or online at www.grote.com