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. Q : I read in a newspaper article that Clearview lettering is significantly better than the old highway lettering we use on our signs.The use of this alternative letter style is subject to Interim Approval and an agency must first request and be granted permission by FHWA to use it. Q : Does FHWA now require Clearview in place of the Standard Alphabets?Ī : There is neither a requirement nor recommendation for any agency to use an alternative letter style.I recently read in a nationally endorsed compendium of treatments for non-motorized vehicles that Clearview should be used on guide signs for bicycle facilities because "it is commonly used for guide signs in the United States." Is this recommendation accurate?.Should I also be considering Clearview for non-freeway guide signs, such as Street Name signs and Destination signs on conventional roads?.I heard on my morning news program that I have to change my Street Name signs to use upper– and lower-case letters (instead of all upper-case) and that this was called Clearview.Does FHWA plan to discard the Standard Alphabets and replace them with the alternative alphabets?.How else should I monitor the effectiveness of the new signs? 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?.Should I use the same interline spacing that I used with the Standard Alphabets?.
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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 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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