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Outdoor LED Electronic 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) |
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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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