Blog 4 Arts & Science of Sign Design

Arts and Science
The following article has been adapted and updated from a version that originally appeared in the 1997
“Economic Value of On-Premise Signage,” published by the California Sign Association (formerly the
California Electric Sign Association) and the International Sign Association.
In just a few words, signs convey a lot. They draw attention, communicate a message, compete with
surroundings, and reach a driver whizzing by.
But signs are more than an artistic endeavor. The best blend strong design and graphics with a thorough
understanding of the science that makes them most effective.
Sign regulations, too, must balance artistic expression with scientific research. Otherwise, the end result
could be harm to a business or, worse yet, an unsafe distraction for drivers.
The Federal Highway Administration has developed numerous principles to ensure road signs are safe.
While the FHWA’s information is aimed at highway signs, the agency includes research that can apply to
on-premise signage as well. For instance, the FWHA has determined that 41 percent of accidents occur
because of a lack of adequate signage. Further studies have established that the most important
consideration in determining the size and placement of a sign is the distance between the sign and the
Consequently, one blanket sign ordinance is rarely enough to meet the diverse needs based on
viewership or location.
A sign will not be viewed by any driver on its own. It will be seen in the context of other structures,
landscaping, and visual sight lines in the area. Because of its very nature, on-premise signage is located
further away from the roadway than traffic signs. It sits on the property of the sign owner, beyond the
lanes of traffic and right-of-way. Signs must be high enough to be seen beyond obstructions, such as
cars parked alongside the street and on the roadway.
If a sign is visible from a greater distance, it affords a longer viewing time and is better able to develop
an impression. At 55 mph, the viewer travels 80 feet per second. It takes 16.5 seconds to travel a
quarter mile. There is little time to draw attention from the road and redirect it to the sign.
If the sign is to be seen by drivers, the speed at which they are traveling is also a factor. Drivers must
have time to read the sign, process the information, and safely react. This is called the Decision Sign
Distance (DSD) and varies depending upon the rate of speed on the street. A driver must have adequate
time to react to the sign, decide to take action, and then safely complete the maneuver. If there are a
number of signs in the area, drivers may need additional time to respond.
©Signage Foundation Inc. 2012
5 Arts & Science of Sign Design
Sign Design
To be most effective, the sign’s design must accommodate the location as well. The size of its letters will
be affected by how far the sign is from the viewer. It also will vary according to the intended viewer: a
pedestrian or a driver.
But other elements can influence the sign reader’s ability to comprehend. Signs that feature familiar
logos, words, and fonts can be processed more quickly. Because of familiarity, for instance, the current
McDonald’s sign features only its name and the iconic golden arches. Nowhere on the modern version
of the sign does it say “hamburger” or “restaurant,” as it once did. Familiarity allows viewers to fill in
those blanks because they know the name and the logo.
Color: Color is recognized as part of a corporate logo. Studies have shown that 80 percent of the
recognition of a trademark is due to its color. Whether it is an iconic, international brand or a small local
store, viewers will recognize the sign in part because of the colors used on it.
Luminance: Color bears another important aspect of sign design. Each color reflects a specific
percentage of light striking its surface. This is known as luminance. The chart below shows how various
colors rank on the luminance scale. When signs are internally illuminated, those that have a higher
luminance scale show brighter.

Light emitted from a light source, such as neon or LEDs, also has varying degrees of brightness. They are,
in order, dimmest to brightest: red, blue, green, and yellow. This is known as luminescence.
©Signage Foundation Inc. 2012
6 Arts & Science of Sign Design
For drivers traveling at night, both the reflected light—luminance—and illuminated light—
luminescence—factor into the readability of the sign.
Contrast: Most signs include words and objects that are a different color than the background. The
contrast between these two items also affects the readability of the sign. This occurs at two points: the
exterior and interior of the sign. Exterior contrast compares the sign’s edge to the background against
which it must be viewed. This might be how the sign’s design fits into a multi-tenant sign, or how the
sign’s edge meets the building to which it is affixed.
The same requirements apply to the interior of the sign—where the copy meets the background. White
letters on a yellow background will not be nearly as striking as white on black, for instance.
In the publication Visual Communication Through Signage, authors Karen Claus and James Claus ranked
the following color combinations, from most to least readable:
black on yellow

Size: The larger the letters appear, the better. The copy of the Snellen eye
chart (right) certainly illustrates the relationship between the physical size
and the dramatic visual impact. When a sign must be read easily in a
minimum amount of time—such as when traffic passes by at a high rate of
speed—it is important that the words be large.
To be readable—and to convey its message safely—a sign must be
detectable, conspicuous, legible, and comprehensible. A sign reportedly
should be 40 feet of distance per inch of letter height, which allows for
maximum comprehension and legibility day and night.
Lettering on signs should include strokes— measuring the thickness of the letters—that are one-fifth the
letter height for maximum readability.

7 Arts & Science of Sign Design
The Viewer
Signs intend to communicate with a viewer, of course. But sometimes, viewer limitations get in the way.
It has been well documented that the American population is aging. In 2011, 13 percent of the U.S.
population was over age 65 and by 2025, about one in four drivers is expected to be over 65. Eyesight
declines with age, and reaction time slows.
It is estimated that 66 percent of American adults wear glasses, contact lenses, or both. As many as 3
million people have glaucoma, and cataracts affect 22 million people over age 40. Most of us see more
poorly in low-light conditions. To compensate, signs must be designed to provide better visibility,
especially at night.
No matter the age, though, all drivers have a relatively narrow cone of vision. Signs must be positioned
within this cone so that the driver doesn’t need to take his eyes off the roadway to take in the sign.
The Manual on Uniform Traffic Control Devices—the federal government’s standards for signs and
signals along America’s roadways—sets a maximum height for traffic signals. It is based on the concept
that viewers sitting at an intersection can see about 20 degrees from the driver’s eye height. Anything
else could be lost in the upper portion of the windshield. While these standards apply only to signals and
road signs, the science applies to on-premise signage as well. If the sign isn’t positioned correctly—or its
orientation to the roadway is increased dramatically—it may be illegible if the sign isn’t large enough.
But for signs to be the clearest, the cone is somewhat more narrow. The absolute clearest viewpoint is a
cone of about 3 degrees around where the eyes are focused. Readability is severely limited outside a 10-
degree cone


Every major chain that exists today started out as a small business. These major chains realized early the power of great signs and graphics. It built their brand and evolved as they grew. Even McDonalds started out as a one-location burger place, and now we have the Golden Arches all over the world. You too have the potential to be a major player in your community and beyond. But, it all starts with a great sign.

At 55 miles per hour, a sign viewer travels 80 feet per second. The more visible and readable a sign is from a distance, the longer the viewing time—and the better the ability to make an impression.

Successful signage involves more than just creating an attractive arrangement of logos and slogans. It is a blending of complex elements such as materials, lighting elements, placement, typography and size of the sign elements. In addition, it’s an understanding of location, marketplace and demographics. Complicating this task is the fact that your potential customer is usually moving and the sign must be seen, read and understood in an instant.


A sign is such a vital component of your success, don’t let financing it be a stumbling block. How you finance your sign is a business decision that can only be made in view of the overall financial picture of your particular business.

It’s vital that your signage needs be included in your original business plan and be a part of your start-up budget. Actually, some loan companies require this and won’t issue a loan without it. Signs can usually be included in your small business asset loan; this includes SBA’s standard business loans.

If your business is already in existence and you are rebranding, updating or just want a new sign, you can still finance your sign through the usual business lending means. Getting a new sign is an investment in your business so be sure to make this case when applying.

The cost of a sign can vary greatly depending on the type of sign, materials, jurisdiction and other factors. Read more about choosing an effective sign for your business to prepare for discussions with your sign, graphics and visual communications vendor.

Look to your sign, graphics and visual communications company partner as they may finance your sign directly or help you find financing. They typically charge a deposit of 20% to 50% when an order is placed, and require the balance to be paid when the sign is delivered so be sure to secure financing early in the process to avoid any delays.

Leasing your sign is a good option for a business that wants to avoid large initial, up-front expenses. By making smaller monthly payments, you can still get the sign you need. Often the increased revenue a good sign generates pays for the lease itself. While you may not own the sign, there are leases with buyout options.

60% of businesses report average sales increases of 10% or more after adding or updating a sign.

Additionally, another benefit could be that lease agreements often include maintenance.

Remember Ashter Signs has inhouse 0% financing available for qaulified clients , so dont worry we are here to help just email or call us


Because signs are so common place, many merchants take them for granted. Look at signage as a way to mark and also market your business.

For example, researchers from the Sign Research Foundation have determined that the addition of one sign at every fast-food outlet in Los Angeles would raise business revenues by $132 million, and those businesses would in turn pay an additional $10 million in sales tax revenue to the local municipality.

While your on-premise sign should identify your business, mark its location and convey the right image of your company, the most important thing it should communicate is what you are selling.

Here are the ABCs of signage as your #1 marketing tool:

Attract New Customers
Brand the Business
Create Impulse Sales
Start with an industry professional like Ashter Signs of Houston to help create the right brand for your business while navigating zoning and other regulations.
Do you Agree to above , give your thoughts

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