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Outdoor
LED Sign Selection Guide
What type of sign should I choose? Perhaps the most important criteria is the speed of traffic and the size of the characters. Below is a handy chart to help you determine which display is right for your application. Please CALL US with any questions, we're here to help you: Call Our Customer Support Hotline 800 346-4474 |
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Someone
traveling in a car at... |
Needs
this MRLD |
Then select a sign with | ||
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MPH
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Ft./sec. | Ft./sec. | Character Size(in) | Lateral offset(ft) |
|
75 70 65 60 55 50 45 40 35 30 25 |
103 95 88 81 73 66 59 51 44 37 |
565 524 484 444 403 363 323 282 242 202 |
19 17 16 15 13 12 11 9 8 7 |
0-50 0-46 0-43 0-39 0-35 0-32 0-28 0-25 0-21 0-18 |
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NOTE:
MRLD (Minimum Required Legibility Distance) is the minimum distance
required for a sign to be readable. This is based on the Legibility
Index (LI). In this table an LI=30 is used. This means that for
each 1-in of character height, a sign can be read up to 30-ft. For example,
with LI=30, a 10-in character is readable up to 300-ft (30 x 10).
Until recently, the LI=30 is based on someone with 20/40 vision.
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