Should we use Clearview alphabets on all our signs?Ī : The use of Clearview as an alternative to the Standard Alphabets is allowed only on positive-contrast (white legend on a green, blue, or brown background) guide signs, as this contrast orientation is the only one that has demonstrated an improvement in legibility distance to date for those legends composed of upper- and lower-case letters when using specific series of Clearview lettering.
We've replaced some of our very old guide signs with new ones using Clearview and have received positive feedback that the new signs look better.My agency has adopted Clearview for all its destination legends on signs and we plan to specify 5-W-R instead of 5-W for all signs.Can I replace my existing signs that use E-modified with any type of the Clearview lettering?.
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Should I just use what the software produces? I've seen fractions displayed in many different ways and my software does not allow me to display fractions as described in the MUTCD.Does this mean all letters, numerals, and characters of Clearview are significantly more legible?.Since Clearview is so much more legible than the old highway lettering, and it was based on using upper- and lower-case letters, should I now display all lettering on signs using upper– and lower-case letters as I've seen illustrated in some documents?.Does this mean I can still get better legibility by using Clearview even with a letter height smaller than the Standard Alphabets?.If I reduce the letter height, can I still use Clearview as long as it provides the same legibility as the Standard Alphabets?.When designing signs with Clearview, do I use the letter height criteria from the MUTCD in the same way as the Standard Alphabets?.Does this mean I should no longer use Series E-modified on signs?.How was the legibility improvement achieved?.Under what conditions can I expect to see a benefit from using Clearview?.If my agency has adopted Clearview, should I revise all the standard positive-contrast signs to use Clearview as well?.Should we use Clearview alphabets on all our signs? I read in a newspaper article that Clearview lettering is significantly better than the old highway lettering we use on our signs.Does FHWA now require Clearview in place of the Standard Alphabets?.Additional information regarding the use of traffic control devices under an Interim Approval can be found in the Section 1A.10 of the MUTCD. The FHWA has prepared the following information to assist agencies, sign designers, and sign fabricators in understanding the application and design parameters to be consistent with the Interim Approval if an agency has chosen, and received FHWA approval, to use the alternative alphabets. The use of this alternative lettering style is completely optional and is neither required nor recommended. Interim Approvals Issued by FHWA Design and Use Policy for Clearview Alphabet Frequently Asked Questions - Design Criteria for the Use of Alternative Alphabets Subject to Interim Approval IntroductionĪ number of questions have been asked with regard to the Interim Approval dated Septemfor the alternative highway sign letter style, Clearview TM.
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