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                Safety Eligibility Letter WZ-279
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-279
                          **Date:**
            04/27/2009
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            ATM Traffic Systems L.L.C.
                          **Device Description:**
            Water filled (up to 75 gallon per unit) Test Level 2 LCD.
                          **View PDF:**
            wz279.pdf (620.34 KB)
    
    Safety Eligibility Letter WZ - 279
			
			
			 
			**Download Version**PDF [620 KB]
			
			DOT logoU.S. Department of Transportation**Federal Highway Administration**
			1200 New Jersey Ave. S.E.Washington, D.C. 20590
			April 27, 2009
			In Reply Refer To: HSSD/WZ-279
			
			Mr. John M. Sandy
				Director of Sales/Product R&D
				ATM Traffic Systems LLC
				448 Hollywood    Avenue
				South Plainfield, NJ 07080
			Dear  Mr. Sandy:
			In your letter of March 26, you requested the Federal  Highway Administration (FHWA) acceptance of your longitudinal channelizing  device, the ATM 590 Water Filled Barrier, for use as a crashworthy traffic  control device in work zones on the National Highway System (NHS). Accompanying your letter was the FHWA Office  of Safety Design forms and a copy of the crash test report. The test summary, device drawing, and test  article description pages are enclosed with the acceptance form. The ATM 590 is intended for use with a  maximum capacity of 75 gallons of water in each module as ballast. You requested that we find this device  acceptable for meeting Test Level 2 criteria for use on the NHS under the  provisions of the National Cooperative Highway Research Program Report 350  "Recommended Procedures for the Safety Performance Evaluation of Highway  Features”.
			This letter is the  acknowledgement of the FHWA’s acceptance of your requests. Longitudinal channelizers should not be  described as "barriers" because they do not meet crashworthiness  requirements for redirection. The FHWA  recommendations for labeling each unit or module to indicate limitations of use  are enclosed. The original  completed forms have been modified by the addition of the FHWA acceptance  letter number and the date of our review. The form will be posted on our Web site in the near future.
			Sincerely yours,
						Signature of David A. Nicol, P.E.
						David A. Nicol, P.E.Director, Office of Safety DesignOffice of SafetyEnclosures U.S. DEPARTMENT OF TRANSPORTATION

**Federal Highway Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

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