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Realtime &
Video Captioning,
Transcription,
Stenography,
Proofreading,
Products
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LED Sign /
Display Message Center Readability Chart |
Character Height |
7' |
8' |
9' |
10' |
12' |
14' |
24' |
Readable Distance |
350' |
400' |
450' |
500' |
600' |
700' |
1200' |
Drive By Speed |
Average Readable Time in Seconds |
25 MPH |
10 |
11 |
12 |
14 |
16 |
19 |
33 |
35 MPH |
7 |
8 |
9 |
10 |
12 |
14 |
23 |
45 MPH |
5 |
6 |
7 |
8 |
9 |
11 |
18 |
55 MPH |
4 |
5 |
6 |
6 |
7 |
9 |
15 |
65 MPH |
4 |
4 |
5 |
5 |
6 |
7 |
13 |
75 MPH |
3 |
4 |
4 |
5 |
5 |
6 |
11 |
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| Generally a minimum of 7 seconds of readable time is recommended for most applications |
| A readable time displayed in GREEN in the table above would be considered ideal |
| A readable time displayed in YELLOW in the table above would be considered a minimum |
| A readable time displayed in RED in the table above would not be recommended |
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