Details:

Creators:
Reynolds, Tobey L.
Corporate Creators:
New Hampshire. Dept. of Transportation
Corporate Contributors:
United States. Federal Highway Administration
Subject/TRT Terms:
[+]
Evaluation And Assessment Inspection Night Visibility Retroreflectivity Sign Sheeting Test Procedures Traffic Signs
Publication/ Report Number:
FHWA-NH-RD-14282V
Resource Type:
Tech Report
Geographical Coverage:
New Hampshire
Corporate Publisher:
New Hampshire. Dept. of Transportation
Abstract:
The Manual on Uniform Traffic Control Devices (MUTCD) has developed minimum retroreflectivity requirements for sign sheeting that will

become a federal mandate for roadside signs in 2015 and for overhead signs in 2018. In 2012, the New Hampshire Department of

Transportation (NHDOT) was required by the Federal Highway Administration (FHWA) to have a plan in place for meeting these requirements.

The MUTCD has identified five acceptable methods that fall into two categories for determining if signs meet the requirements. In the

Assessment category, the methods listed are Visual Nighttime Inspection and Measured Sign Retroreflectivity. In the Management category, the

methods listed are Expected Sign Life, Blanket Replacement, and Control Signs.

This project focused on determining a method that was most suited to the needs of the NHDOT. Each method has advantages and

disadvantages that were considered during the selection of an appropriate plan.

Once all the methods were assessed, it was determined that Visual Nighttime Inspection would be the most economical due to the quickness that

the review can be accomplished and the minimal resources required to conduct the inspection. Another major factor for selecting the visual

night inspection was that a statewide sign inventory is currently not available. If a current inventory was available, other methods may prove to

be more efficient.


Format:
PDF
Funding:
14282V, X-A000(853)
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:77c51958b053d153d2d0f09853db574279e26140f9ff0034a40983f857767d7c
Download URL:
https://rosap.ntl.bts.gov/view/dot/27794/dot_27794_DS1.pdf
File Type:

Supporting Files

• No Additional Files

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