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                Safety Eligibility Letter WZ-264
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-264
                          **Date:**
            01/17/2008
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Traffic Safety Service
                          **Device Description:**
            Copy of the device accepted in WZ-102. Type I and Type II barricades with and without lights.
                          **View PDF:**
            wz264.pdf (2.23 MB)
    
    
Skip to contentSkip to contentUnited States Department of Transportation - Federal Highway AdministrationDOT logo
U.S. Department of Transportation
**Federal Highway Administration**
1200 New Jersey Ave. S.E.
Washington, D.C. 20590January 1, 2008
**In Reply Refer To: HSSD/WZ-264**

Mr. John M. Sandy
Director of Product R&D
Traffic Safety Service 
601 Hadley Road
South Plainfield, NJ 07080

Dear  Mr. Sandy:
In your letter of November 27, 2007, you requested the  Federal Highway Administration’s (FHWA) acceptance of your company’s A-frame  Type I and Type II barricades as crashworthy traffic control devices for use on  the Accompanying your letter were drawings of the  barricades and a letter granting permission to your company from Plastic Safety  Systems to copy the design of the previously crash tested and accepted  barricades. You requested that we find  your company’s barricades equivalent and acceptable for use on the NHS under  the provisions of the National Cooperative Highway Research Program (NCHRP)  Report 350 “Recommended Procedures for the Safety Performance Evaluation of  Highway Features.”
Your company’s barricades are nearly identical in size,  form, and function and are considered equivalent to Plastic Safety System’s  barricades that have been crash tested and accepted for use with and without a  lightweight light attached. The Traffic  Safety Service’s (TSS) Type I and Type II barricades are manufactured using  HPDE plastic and the total weight is between 22 to 64 pounds depending on the  length of barricade rail configuration.  The lengths of barricade rails vary and may be configured in 4, 6, 8,  10, or 12 foot lengths. The A-frames  supporting the barricade rail(s) measure 40.25 inches (1.02 m) tall and 28.9  inches (0.73 m) at the base. Drawings of  the devices are enclosed for reference. Additionally,  you enclosed a copy of a letter from Plastic Safety Systems granting you  permission to copy their barricade design that was found to be crashworthy  based on testing as described in the FHWA acceptance letter WZ-102 issued in  2002.
Based on our review, your TSS Type I and Type II barricades  are equivalent to the previously accepted barricades in acceptance letter  WZ-102. Since you have obtained permission to copy the  previously accepted design, your equivalent barricade designs are crashworthy  and are accepted by the FHWA as a Category 2 device with and without a  lightweight light securely attached.
Please note the following standard provisions that apply to the  FHWA letters of acceptance:
This acceptance is limited to the  crashworthiness characteristics of the devices and does not cover their  structural features, nor conformity with the Manual on Uniform Traffic Control  Devices.
  Any changes that may adversely influence the  crashworthiness of the device will require a new acceptance letter.
  Should the FHWA discover that the qualification  testing was flawed, that in-service performance reveals unacceptable safety  problems, or that the device being marketed is significantly different from the  version that was crash tested, it reserves the right to modify or revoke its  acceptance.
  You will be expected to supply potential users  with sufficient information on design and installation requirements to ensure  proper performance.
  You will be expected to certify to potential  users that the hardware furnished has essentially the same chemistry, mechanical  properties, and geometry as that submitted for acceptance, and that they will  meet the crashworthiness requirements of the FHWA and the NCHRP Report 350.
  To prevent misunderstanding by others, this  letter of acceptance, designated as number WZ-264 shall not be reproduced  except in full. This letter, and the  test documentation upon which this letter is based, is public information. All such letters and documentation may be  reviewed at our office upon request.
  The TSS  Type I and Type II barricades are patented products and considered  proprietary. If proprietary devices are  specified by a highway agency for use on Federal-aid projects, except exempt,  non-NHS projects, they: (a) must be supplied through competitive bidding with  equally suitable unpatented items; (b) the highway agency must certify that  they are essential for synchronization with the existing highway facilities or  that no equally suitable alternative exists; or (c) they must be used for  research or for a distinctive type of construction on relatively short sections  of road for experimental purposes. Our  regulations concerning proprietary products are contained in Title 23, Code of  Federal Regulations, Section 635.411.
  This acceptance letter shall not be construed as  authorization or consent by the FHWA to use, manufacture, or sell any patented  device for which the applicant is not the patent holder. The acceptance letter is limited to the  crashworthiness characteristics of the candidate device, and the FHWA is  neither prepared nor required to become involved in issues concerning patent  law. Patent issues, if any, are to be  resolved by the applicant.Sincerely yours,
George E. Rice
George E. Rice, Jr.
Acting Director, Office of Safety Design
Office of SafetyEnclosures
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