FHWA:HSST:WLongstreet:JRL:x61331:04/17/17 UPDATED 6/13/2017

FHWA: HSST: EM: x30330: 12/19/17

File: S:\PROGRAMS\ROADWAY DEPARTURE\CENTRAL ELIGIBILITY 

FILES\__Active\Laura Metaal Road Safety\TL4 limited deflection - not all files\letter

cc: HSST

U.S. Department 

of Transportation 

Federal Highway 

Administration 

June 3, 2020 

1200 New Jersey Ave., SE 

Washington, D.C. 20590 

In Reply Refer To: 

HSST-1/ B-294A 

Stephan Flapper 

Laura Metaal Road Safety 

Rimburgerweg 40, 647 XX Kerkrade 

Netherlands 

Dear Mr. Flapper: 

This letter is in response to your May 13, 2020 request for the Federal Highway Administration 

(FHWA) to review a roadside safety device, hardware, or system for eligibility for 

reimbursement under the Federal-aid highway program. This letter supersedes the original letter 

B-294 for the SafeZone MASH TL-4 Limited Deflection Barrier. This FHWA letter of eligibility

is assigned FHWA control number B-294A and is valid until a subsequent letter is issued by

FHWA that expressly references this device.

Decision 

The following devices are eligible, with details provided in the form which is attached as an 

integral part of this letter: 

• SafeZone MASH TL-4 Limited Deflection

Scope of this Letter 

To be found eligible for Federal-aid funding, new roadside safety devices should meet the crash 

test and evaluation criteria contained in the American Association of State Highway and 

Transportation Officials’(AASHTO) Manual for Assessing Safety Hardware (MASH). 

However, the FHWA, the Department of Transportation, and the United States Government do 

not regulate the manufacture of roadside safety devices. Eligibility for reimbursement under the 

Federal-aid highway program does not establish approval, certification or endorsement of the 

device for any particular purpose or use. 

This letter is not a determination by the FHWA, the Department of Transportation, or the United 

States Government that a vehicle crash involving the device will result in any particular 

outcome, nor is it a guarantee of the in-service performance of this device. Proper 

manufacturing, installation, and maintenance are required in order for this device to function as 

tested. 
 

 

 

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This finding of eligibility is limited to the crashworthiness of the system and does not cover other 

structural features, nor conformity with the Manual on Uniform Traffic Control Devices. 

Eligibility for Reimbursement 

Based solely on a review of crash test results and certifications submitted by the manufacturer, 

and the crash test laboratory, FHWA agrees that the device described herein meets the crash test 

and evaluation criteria of the American Association of State Highway and Transportation 

Officials’ Manual for Assessing Safety Hardware (MASH). Therefore, the device is eligible for

reimbursement under the Federal-aid highway program if installed under the range of tested 

conditions. 

Name of system: SafeZone MASH TL-4 Limited Deflection 

Type of system: Rigid/Semi-Rigid Barriers 

Test Level: MASH Test Level 4 

Testing conducted by: Crashtest-service.com GmbH 

Date of request: May 13, 2020 

FHWA concurs with the recommendation of the accredited crash testing laboratory as stated 

within the attached form. 

Full Description of the Eligible Device 

The device and supporting documentation, including reports of the crash tests or other testing 

done, videos of any crash testing, and/or drawings of the device, are described in the attached 

form. 

Notice 

This eligibility letter is issued for the subject device as tested. Modifications made to the device 

are not covered by this letter and will need to be tested in accordance with all recommended tests 

in AASHTO’s MASH as part of a new and separate submittal.

You are expected to supply potential users with sufficient information on design, installation and 

maintenance requirements to ensure proper performance. 

You are expected to certify to potential users that the hardware furnished has the same chemistry, 

mechanical properties, and geometry as that submitted for review, and that it will meet the test 

and evaluation criteria of AASHTO’s MASH. 

Issuance of this letter does not convey property rights of any sort or any exclusive privilege. This 

letter is based on the premise that information and reports submitted by you are accurate and 

correct. We reserve the right to modify or revoke this letter if: (1) there are any inaccuracies in 

the information submitted in support of your request for this letter, (2) the qualification testing 

was flawed, (3) in-service performance or other information reveals safety problems, (4) the 
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system is significantly different from the version that was crash tested, or ( 5) any other · 

information indicates that the letter was issued in error or otherwise does not reflect full and 

complete information about the crash worthiness ofthe system. 

Standard Provisions 

• To prevent misunderstanding by others, this letter of eligibility designated as FHWA 

control number B-294A shall not be reproduced except in full. This letter and the test 

documentation upon which it is based are public information. All such letters and 

documentation mayJ,e reviewed upon request. 

• This letter shall not be construed as authorization or consent by the FHWA to use, 

manufacture, or sell any patented system for which the applicant is not the patent holder. 

Sincerely, 

Michael Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 
Version 10.0 (05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

Submitter 

Date of Request: April 29, 2020 New Resubmission 

Name: Stephan Flapper 

Company: Laura Metaal Road Safety 

Address: Rimburgerweg 40, 6471 XX Kerkrade 

Country: The Netherlands 

To: Michael S. Griffith, Director 

FHWA, Office of Safety Technologies 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device & Testing Criterion - Enter from right to left starting with Test L 

System Type Submission Type Device Name / Variant Testing Criterion Test 

Level 

'B':Rigid/Semi-Rigid Barriers PhysicalCrashTesting 

EngineeringAnalysis 

SafeZone MASH TL-4 

Limited Deflection 

AASHTO MASH TL4 

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By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH. 

Individual or Organization responsible for the product: 

Contact Name: Stephan Flapper Same asSubmitter 

Company Name: Laura Metaal Road Safety Same asSubmitter 

Address: Rimburgerweg 40, 6471 XX Kerkrade Same asSubmitter 

Country: The Netherlands Same asSubmitter 

Enter below all disclosures of financial interests as required by the FHWA `Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

With respect to Laura Metaal Road Safety, Crashtest-service.com GmbH does not hold any financial interests. 

LauraMetaalRoadSafetycontractedCrashtest-service.comGmbH for theservicesof crash testing our product 

SafeZoneaccording to specifications of AASHTOManual for AssessingSafetyHardware(MASH)Tests4-10,4-11 

and 4-12. Crashtest-service.com GmbH was compensated for the cost of the crash tests. No consulting 

relationship, research funding or other forms of research support, patents, copyrights, other intellectual 

property interests,licenses,contractual relationships, businessownership or investmentsinterestsare retained 

forCrashtest-service.comGmbH 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Page 2 of 4 

PRODUCT DESCRIPTION 

Help 

New Hardware or Modification to 

Significant Modification Existing Hardware 

SafeZone system isa proprietary modular high containment and low deflection steel barrier developed by 

LauraMetaalRoadSafety.It isdesigned for both permanent and temporary usein construction and roadwork 

applications.Thesystem is typically deployed in 5.8m (19’)standardsections that can quickly beconnected 

together to form the desired total length of barrier wall. 

Joining of thesections isdone by linking them together and applying onesecurity bolt per section to keep the 

sections securely fastened. If desired, two or three sections can remain connected permanently to form 11.6m 

(38’)or 17.4m (54’)combinedsectionsfor quicker placement on the road. 

SafeZoneis0.81m (32”) high and 0.45m (18”) wide without anchor units or 0.64 m (25”) with anchor units.The 

weight isapproximately93kg/m or 62lbs/ft.For theMASHTL-4Limited Deflection setup,7standardsections 

were lined up on asphalt, forming a 40.6 m (133 ft) string. The anchor positions used were the two outer 

positions, thesecond position on element oneand thesecond position on everysecond element thereafter. 

Threaded rods0.30m (11.8”)long and 0.030m (1.18”) diameter were used.All anchorswereepoxied in asphalt. 

Thedynamic deflection of the MASHTL4-12 test was0.85m (33.5”)and the permanent deflection was0.45m 

(17.7”).The dynamic working width was2.17m (85.4”)and the permanent working width was0.88m (34.6”).

CRASH TESTING 

Bysignature below, theEngineeraffiliated with the testing laboratory,agreesinsupport of thissubmission that 

all of the critical and relevant crash tests for this device listed above were conducted to meet the MASH test 

criteria. The Engineer has determined that no other crash testsare necessary to determine the device meets 

theMASH criteria. 

Engineer Name: Peter Schimmelpfennig 

EngineerSignature: PeterSchimmelpfennig Digital unterschriebenvonPeterSchimmelpfennig Datum: 2020.05.08 15:06:55 +02'00' 

Address: Amelunxenstraße 30, 48167 Münster Same asSubmitter 

Country: Germany Same asSubmitter 

A brief description of each crash test and its result: Help 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

4-10 (1100C) 

Test nr. 18648-2. Test report nr. 

11775-2887/18648-2 performed 20 April 

2017 by Crashtest-Service.com. 

The 32” high longitudinal barrier contained 

and redirected the 1100C vehicle. The 

vehicle did not penetrate, underride or 

override the installation. Maximum dynamic 

deflection during the test was 13.8”. No 

significant partsseparated from either 

vehicle or barrier. No occupant 

compartment deformation or intrusion 

occurred. The vehicle remained upright 

during and after the impact. 

PASS 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

4-11 (2270P) 

Test nr. 18933. Test report nr. 

11717-3157/18933 performed 23 May 2018 

by Crashtest-service.com 

The 32” high longitudinal barrier contained 

and redirected the 2270P vehicle. The 

vehicle did not penetrate, underride or 

override the installation. Maximum dynamic 

deflection during the test was 23.8”. No 

significant partsseparated from either 

vehicle or barrier. No occupant 

compartment deformation or intrusion 

occurred. The vehicle remained upright 

during and after the impact. 

PASS 

4-12 (10000S) 

Test nr. 19154 Test report nr. 

11717-3401-19154performed 16 April 2019 

by Crasthtest-service.com. The 32” high 

longitudinal barrier contained and 

redirected the 10000S vehicle. The vehicle 

did not penetrate, underride or override the 

installation. Maximum dynamic deflection 

during the test was 33.5”. No significant 

partsseparated from either vehicle or 

barrier during impact. No occupant 

compartment deformation or intrusion 

occurred. The vehicle remained upright 

during and after the impact. 

PASS 

4-20 (1100C) Device isstand alone.4-20 now not relevant Non-Relevant Test, not conducted 

4-21 (2270P) Device isstand alone.4-20 now not relevant Non-Relevant Test, not conducted 

4-22 (10000S) Device isstand alone.4-20 now not relevant Non-Relevant Test, not conducted 

Full Scale Crash Testing was done in compliance with MASH by the following accredited crash test 

laboratory (cite the laboratory’s accreditation status as noted in the crash test reports.):

Laboratory Name: Crashtest-service.com GmbH 

LaboratorySignature: Peter Schimmelpfennig Digital unterschrieben von Peter Schimmelpfennig Datum: 2020.05.08 15:07:10 +02'00' 

Address: Amelunxenstraße 30, 48167 Münster Same asSubmitter 

Country: Germany Same asSubmitter 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

D-PL-17359-01-00 

07.05.2013 - 06.05.2018 

Digitaal ondertekend door 

Submitter Signature*:Stephan Flapper Datum: 2020.05.11 15:09:40 

Stephan Flapper 

+02'00' 
 

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Page 4 of 4 

ATTACHMENTS 

Attach to this form: 

1) Additional disclosures of related financial interest as indicated above. 

2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 

support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words