i·' 1200 New Jersey Ave., SE

Washington , D.C. 20590 

December 19, 2017 In Reply Refer To: 

HSST-1/B-290 

Mrs. Karla Lechtenberg 

Midwest Roadside Safety Facility 

130 Whittier Research Center 

2200 Vine Street 

Lincoln, NE 68583-0853 

Dear Mrs. Lechtenberg, 

This letter is in response to your September 1, 2017 request for the Federal Highway 

Administration (FHW A) to review a roadside safety device, hardware, or system for eligibility 

for reimbursement under the Federal-aid highway program. This FHWA letter of eligibility is 

assigned FHWA control number B-290 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: 

• Midwest Guardrail System (MGS) to PCB Transition 

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 FHW A, 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 FHW A, 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. 

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

structural features, nor conformity with the Manual on Uniform Traffic Control Devices. 
2 

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 AASHTO's 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: Midwest Guardrail System (MGS) to PCB Transition 


Type of system: Longitudinal Barrier 


Test Level: MASH Test Level 3 (TL3) 


Testing conducted by: Midwest Roadside Safety Facility 


Date of request: September 1, 201 7 


Date initially acknowledged: September 8, 2017 


FHW A 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. Any modifications to this device should be submitted to the user 

(i.e., state DOT) as per their requirements. 

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 

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 of the system. 
3 

Standard Provisions 

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

control number 8-290 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 may be reviewed upon request. 

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

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

• 	 Ifthe subject device is a patented product it may be considered to be proprietary. If 

proprietary systems are specified by a highway agency for use on Federal-aid projects: 

(a) they 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. 

Sincerely, 

Michael S. Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 
Version 10.0 (05/16) 

Page 1 of 8 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

Date of Request: August31, 2017 r..New (' Resubmission I 

Name: Karla Lechtenberg 

... 

.... 

.... 

QI 

·e 

..c 

::I 

II) 

Company: Midwest Roadside Safety Facility 

Address: 130 Whittier Research Center, 2200 Vine Street, Lincoln, NE 68583-0853 

Country: USA 


Michael S. Griffith, Director 


FHWA, Office of Safety Technologies 

To : 

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 Level ~ 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'B': Rigid/Semi-Rigid Barriers 

(Roadside, Median, Bridge 

Railinqs) 

(9 Physical Crash Testing 

(' Eng ineering Analysis 

Midwest Guardrail 

System (MGS) to PCB 

Transition 

AASHTO MASH TL3 

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: Bob Bielenberg Same as Submitter D 

Company Name: Midwest Roadside Safety Facility Same as Submitter [8J 

Address: 130 Whittier Research Center, 2200 Vine Street, Lincoln, NE ,... nrn""\ n n r"\ Same as Submitter [8J 

Country: USA Same as Submitter [8J 

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

Eligibility Process for Safety Hardware Devices' document. 

The Midwest Roadside Safety Facility (MwRSF) and its employees are requesting a letter of eligibility on behalf of 

the Nebraska Department ofTransportation, Smart Work Zone Deployment Initiative, and Iowa Department of 

Transportation. 

MwRSF's financial interests are as follows: 

(i) No compensation, including wages, salaries, commissions, professional fees, or fees for business referrals; 

(ii) Consulting relationships consist of answering design and implementation questions; 

(iii) Research funding or other forms of research support include continuing to fund research projects with 

MwRSF; 

(iv) No patents, copyrights, or other intellectual property interests for this system; 

(v) No licenses or contractual relationships for this system; and 

(vi) No business ownership and investment interests for this system . 
Version 10.0 (05/16) 

Page 3 of 8 

PRODUCT DESCRIPTION 

(e' New Hardware or 

• Significant Modification 

(' Modification to 

Existing Hardware 

The Midwest Guardrail System (MGS) to PCB Transition (STG05) consists of nested MGS, a stiffness transition, 

and F-shaped PCB (SWC09) at a 15H:1V flare. The nested MGS consists of two standard 12-gauge W-beam 

sections (RWM04a) installed with the top of the rail set at a nominal height of 31 inches. The rail is mounted on 

standard W6x8.5 ASTM A992 steel posts that are 72 in. long (PWE06). The posts are set at 75-in. centers and are 

embedded 40 in. in the ground. A 6-in. x 12-in. x 14Vi-in. wood blockout (PDB 1Oa-b) is used to block the rail 

away from the front face of each post. The rails splices are located at mid-spans between adjacent posts. 

Standard guardrail bolts or ASTM A307 5/8-in. diameter x 14-in. long guardrail bolts and nuts (FBB06) are used 

to attach the rai l to the posts. 

The overlapped portion of hte transition from MGS to PCB includes four blockouts between the guardrail and 

PCB of various sizes depending on the distance between the guardrail and PCB (PDB25a-d). The blockouts 

were mounted on blackout mounting plates which were secured to the PCB with two %-in. diameter x 6-in. 

long Power Wedge Bolts (FBX02). The nested MGS was connected and transitioned to the PCB at an angle of 

3.8 degrees by a steel connector plate and W-beam terminal connector (REW02b). The W-beam terminal 

connector plate is connected to the front side of PCB no. 4 with four 1-in. diameter ASTM A325 Grade A bolts 

(FBX27b) through 1Ys-in. diameter holes, which are measured and drilled in the field. The downstream end of 

the connector plate is angled 8.0 degrees to be flush against the PCB. The W-beam terminal connector is 

attached to the front side of the connector plate with five 'l's-in. diameter x 2-in. long ASTM A325 bolts secured 

by ASTM A563 nuts (FBX22b) welded to the interior of the mounting bracket. 

A minimum length of 137.5 ft of nested MGS and eleven PCB segments (SWC09) placed at a 1V:15H flare is 

recommended. A minimum of eight PCB segments (SWC09) should be placed downstream from the point 

where the W-beam guardrail attaches to the PCB. A minimum of three PCB segments (SWC09) are required to 

extend behind the nested MGS at the 1 V:15H flare, which corresponds to attachment of the end of the 

guardrail on upstream end of the fourth PCB segment transition. Additional length of PCB segments flared 

behind the nested MGS is acceptable. The connector plate bolts (FBX27b) that extend through the PCB must 

be mounted a minimum of 12% in. from the upstream edge of the PCB segment (SWC09). A minimum of five 

150 in. long, nested W-beam sections (RWM04a) must be used upstream from the W-beam terminal connector 

(RWE02b). Conversion from the 1 V:15H flared PCB to tangent-to-roadway PCB should not begin until a 

minimum of two PCB segments (SWC09) downstream from the W-beam terminal connector (RWE02b). The 

PCB segments (SWC09) in the transition that are not installed on a paved surface should be installed on a 

6" [152] deep bed of crushed limestone. The compacted crushed limestone bed should extend 12" [305] in 

ront of the PCB segments (SWC09), underneath the PCB segments (SWC09), and a minimum lateral width of 

8" [1219] behind the PCB segments (SWC09). 

f

4

For further information on implementation guidance, including minimum installation parameters, allowable 

tolerances on blackout geometry and placement, grading and surfacing requirements, repair 

recommendations, and integration with other barrier systems., see chapter 12 of MwRSF report no. 

TRP-03-335-17. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission 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 tests are necessary to determine the device meets 

the MASH criteria. 

Engineer Name: 

Engineer Signature: 

Bob Bielenberg 

Robert Bielenberg Digit ally signe d by Robert Bielenberg 

ON: cn=Robert 6ielenberg, o=Midwest Roadside Safety Facility, ou, 

em ail=rbielenberg2@unl.edu, c=US 

Da te: 2017.09.01 06:49:04 -05'00' 

Address: 130 Whittier Research Center, 2200 Vine Street, I 11.11 - ..... ,-n., nnr-., Same as Submitter ~ 

Country: V:>M Same as Submitter 
Version 10.0 (05/16) 

Page 4 of 8 

A brief description of each crash test and its result: 

Required Test Narrative Evaluation 

Number Description Results 

Test no. 3-10 is not applicable for this type 3-10 (1100() Non-Relevant Test, not conducted of system. 


Test no. 3-11 is not applicable for this type 
 3-11 (2270P) Non-Relevant Test, not conducted of system. 


The results oftest no. MGSPCB-2, conducted 


on July 30, 2015 are found in MwRSF report 


no. TRP-03-335-17. A 2,436-lb small car with 


a simulated occupant seated in the right-


front seat, impacted the MGS to PCB 


transition at a speed of 65.1 mph and at an 


angle of 24.0 degrees. At 0.232 sec after 


impact, the vehicle became parallel to the 


system with a speed of 43.6 mph. At 0.437 


sec, the vehicle exited the barrier at a speed 


of 41.2 mph and at an angle of 13.6 degrees. 


The vehicle was smoothly redirected. 


Exterior vehicle damage was moderate and 


the interior occupant compartment 


3-20 (1100() deformations were moderate, with a PASS 

maximum of 2.83 in., consequently not 

violating the limits established in MASH. 

Damage to the barrier was moderate, 

consisting of rail deformation, contact 

marks on the front face of the concrete 

segments, and spa I ling of the concrete. 

The maximum lateral dynamic dynamic rail, 

post, and PCB deflections were 26.3 in., 3.1 

in., and 28.1 in., respectively. The working 

width of the system was 61.4 inches. All 

occupant risk measures were well below 

recommended values. The test vehicle 

showed no tendency for rollover and did 

not penetrate or ride over the barrier. 
Version 10.0 (05/16) 

Page 7 of 8 

The results of test no. MGSPCB-1, conducted 

on July 20, 2015 are found in MwRSF report 

no. TRP-03-335-17. A 4,914 lb pickup truck 

with a simulated occupant seated in the 

right-front seat, impacted the MGS to PCB 

transition at a speed of 63.2 mph and at an 

angle of 25.3 degrees. At 0.520 sec, the 

vehicle exited the barrier at a speed of 38.6 

mph and at an angle of 21.0 degrees. The 

vehicle was smoothly redirected. Exterior 

vehicle damage was moderate and 

maximum interior occupant compartment 

deformations were 0.87 in., consequently 

not violating the limits established in MASH. 

Damage to the barrier was moderate, 

consisting of rail deformation, bending of 

the steel posts, contact marks on the front 

face of the concrete segments, and spalling 

of the concrete. The maximum lateral 

dynamic dynamic rail, post, and PCB 

deflections were 36.1 in., 27.7 in., and 6.7 in., 

respectively. The working width of the 

system was 58.7 inches. All occupant risk 

measures were well below recommended 

values. The test vehicle showed no 

tendency for rollover and did not penetrate 

or ride over the barrier. 

In addition, a reverse-direction impact of 

test designation no. 3-21 with the 2270P 3-21 (2270P) PASS vehicle was required to evaluate the 

transition for installations that require twoway traffic adjacent to the barrier. The 

results of this test, test no. MGSPCB-3, 

conducted on August 25, 2015 are found in 

MwRSF report no. TRP-03-335-17. A 5,012 lb 

pickup truck with a simulated occupant 

seated in the right-front seat, impacted the 

MGS to PCB transition at a speed of 63.1 

mph and at an angle of 24.6 degrees. At 

0.606 sec, the vehicle exited the barrier at a 

speed of 43 .2 mph and at an angle of 11.3 

degrees. The vehicle was smoothly 

redirected . Exterior vehicle damage was 

moderate and maximum interior occupant 

compartment deformations were 0.53 in., 

consequently not violating the limits 

established in MASH.Damage to the barrier 

was moderate, consisting of cracking of the 

concrete, contact marks on the front and 

top face of the concrete segments, and 

spalling of the concrete. The maximum 

lateral dynamic dynamic rail, post, and PCB 

deflections were 30.6 in., 0.4 in., and 37.2 in., 

respectively. The working width of the 

system was 58.7 inches. All occupant risk 

measures were below recommended 

values. The test vehicle showed no 

tendency for rollover and did not penetrate 

or ride over the barrier. 
Version 10.0 (05/16) 

Page 8 of 8 

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: Midwest Roadside Safety Facility 

Laboratory Signature: Karla Lechten berg Digitally signed by Ka rla l echtenberg 

DN: cn=Karla l echtenberg, o=Midwest Roadside Safety Facility (MwRSF), 

ou, email=kpolivka2@unl.edu, c=US 

Date: 2017.09.01 09:17:07 -05'00' 

Address: 130 Whittier Research Center, 2200 Vine Street, 

Lincoln, NE 68583-0853 Same as Submitter [:8] 

Country: USA Same as Submitter [:8] 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

A2LA Certificate Number: 2937.01, Valid to November 30, 2017 

. s· * Karla Digitally si911ed by Kowta lechtenberg 

S u b m1tter 1gnature : L h b ON:tn=Karta lechtenberg, o=Midwest 

ec ten erg Road!.lde»fetyF"''~ty (MwRSFJ, ou,

emaU=kpolivka2c,tunl.edu, c~S

D.lte:2017.09.0109:17:l8-05'00' 

Submit Form 

ATTACHMENTS 

Attach to this form : 


I) 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 
0.000 sec 	 0.048 sec 0.150 sec 0.232 sec 0.422 sec 

i---------t5T-5" [48.0 m1--------t 

i 	 2 

Test Agency.. ... .. MwRSF 

Test Number. . ........... ......... . ... .. .. . ........... . ...... ..................... ... ....... MGSPCB-2 

Date .. ..... 7/30/2015 

MAS H Test Designation .................. ................... ............................. .............. 3-20 

Test Article... ... .......... ...... ..... ......... .... ..... . ................... MGS to PCB Transition 

Total Length . ... ..... .... .. .. .... .. . ........... ..... . ......... ... 240.1 ft (732 m) 

Key Component- W-beam Guardrai l 

Thickness .. 	 . ............ 12 ga. (2 .66 mm) 


0 Mounting Height ... 	 ..... ...... ......... 31 in . (787 mm) 
 w Key Component - ASTM 992 Steel Post 

Length .. . ........................ ....................................... 72 in. (1 ,829 mm) 

Embedment Depth .. .. ............... .. .. .. .......... 40 in. (l ,OI6 mm) 

Spacing. . . .. ................. .............. ...................... 75 in. (1 ,905 mm) 

Key Component - 5,000 psi PCB 

Length . . .. ................................. .. ........ ........ .... ............. 150 in. (3 ,810 mm) 

Width . .. . .. ...... .. . ............... .. ... . ................ 22 Y, in . (572 mm) 

Height ........... .. ....... .... ... . ........ ... .. ......... ..... ... .... ... 32 in . (813 mm) 

• Soil Type ............................. ..................... ....................... Coarse Crushed Limestone 


Vehicle Make /Model .................... . ..................... 2008 Kia Rio 


Curb .. .... ..... .... .... .. . . ....... ........... 2,434 lb (1 , 104 kg) 


Test Inertial .. ... .. . .. .. .. ... .. ... .... .. ... . ................. 2,436 lb (1 , 105 kg) 


Gross Static.. ....... ....... ...... ..... . ..... 2,601 lb (1 , 180 kg) 


Impact Conditions 

Speed .. .... .. . . . ....... 65 .1 mph (I 04 8 km/h) 

Angle . . . ......................... 24.0 deg 

Impact Location .. 

... ............. 99 Y, in. (2,527 mm) U.S. from centerline of2"d splice US from end shoe 

Impact Severity (IS) ........... 57.2 kip-ft (77.6 kJ) > 51 kip-ft (69.7 kJ) limit from MASH 


Exit Conditions 

Speed ... ... . ..... . ........ .4 I.2 mph (663 km/h) 

Angle . .... .. .. ..... .. .. ..... ..... .. .. . .. ............... . ..... ... ............. 13.6 deg 

Exit Box Criterion ... . ............................ . ........... ............ ...... ............... ......... Pass 


Vehicle Stability .. .... Satisfactory 


Vehicle Stopping Distance . .. .... ... .................... 157 ft- 5 in . (48 .0 m) downstream 


Lateral .......... .. ................ ................................... .................... .. 22 ft (6 .7 m) in front 


Vehicle Damage .. ....... .. ........ .................. ..... ............... ......... . Moderate 


VDS (16] . .... ....... ................. 01 -RFQ-6 


CDC (17] ...... .... ...... . . . . . ... . ... ............................ 01-FRAW-6 


Maximum Interior Defonnation .. . ................. .. .................... 2.83 in . (72 mm) 

Test Article Damage .. ... .. ........... Moderate 

Maximum Test Article Deflections 

Permanent Set ... ... ...... .... . ... ... . ... ... .... ..... .... .... ....... 25'/, in. (657 mm) 

Dynamic ...... ........ .. .... ................ . ............... 28.1 in. (7 14 mm) 

Working Width ................................... .......... ... 61.4 in . (1 ,560 mm) 

Transducer Data 

Transducer 

Evaluation Criteria SLICE-1 

(primary) SLICE-2 MASH Limit 

OJV 

ft/s 

(111/s) 

Longitudinal 

Lateral 

-23 .82 (· 7 26) 

-22.38 (-682) 

-22 .86 (-6 97) 

-22.03 (-6 71) 

±40 

(122) 

±40 

(122) $'. 

ORA 

g's 

Longitudinal 

Lateral 

-6 .14 

-6.85 

-5 .79 

-7.20 

±20.49 

±20.49 

:;: 

;:io 

C/l

..,, 

~ "O 

0 

MAX Roll -9.62 - 10.49 ±75 ;:i 

ANGULAR Pitch DISP. 

deg. Yaw 

THIV - ft/s (m/s) 

PHD-g's 

-5.92 

-43 .56 

29.54 (9.00) 

9 01 

-6.46 

-43 .68 

29.38 (8 95) 

8.86 

±75 

Not required 

Not required 

Not required 

z 

? 

-l 

~ $'. 0"' w'< 

Wsv 

ASI 1.72 1.71 Not required ~~ _, _, 
 Figure 78. Summary of Test Results and Sequential Photographs, Test No. MGSPCB-2 
~ ~ ..:'.·.~':;·) a:c '. I,..... - am r-03!J

;-... ..._...t, -1 I 


I""' 


1Jot'-l" (Pt.) .,.,j - -------1 

Test Agency ... . .. . . . ..... .... ... ......... .. ... MwRSF 

Test Number ............... MGSPCB-1 

Date .. ······· 712012015 

MASH Test Designation ................ . ..3-21 

Test Article.. ... ... ........ .... ... . ...... .......... ...... MGS to PCB Transition • 

Total Length . .... ..... .. 240.1 ft (73 2 m) 

Key Component - W-beam Guardrail 

Thickness.. .... ..... ..... .. ... . .. .. ... ... . ... .. .... . .... 12 ga. (2 66 mm) 


Mounting Height ............. .. .. ... .... .... . .. ... .. .. .. ............ ..... .. 31 in . (787 mm) 


Key Component- ASTM 992 Steel Post 

Length . ........................... ...... .................... 72 in. (1 ,829 mm) 

Embedment Depth ..................... ............. .. ... .................. 40 in. (1 ,016 mm) 

Spacing .. .......... ............ 75 in. (1,905 mm) 

Key Component- 5,000 psi PCB 

Length . ................. ... ................. 150 in. (3 ,810 mm) 

Width .. ................... ................... ... ... ......... ........ 2211, in. (572 mm) 

Height ....... ... .... .. ... .. . ... ........... .. ..... . 32 in. (813 mm) 

Soil Type ........... ..... ..... ... ... ... .. .... .... . ... ... ...... Coarse Crushed Limestone 


Vehicle Make /Model. . ............... .... . .... ........ 2008 Dodge Ram 1500 


Curb ... . . ............ .. ... .. . . .. . ........ ..... .4,977 lb (2.258 kg) 


Test Inertial ... . . .. ................. . ... ..... ..... .. .... ............. .4,914 lb (2,229 kg) 


Gross Static .............. .......... .. ... .. .... ........ ......... ... ..... 5,079 lb (2,304 kg) 


Impact Conditions 

Speed .. .... .... ... ....................................... ..63.2 mph (101.8 km/h) 

Angle ........................... ............... ... ....... . ...... .... .... ... ...... ............................. 25.3 deg 

Impact Location ... ......... .... ........ ..... 2Y, in. (64 mm) downstream from post no. 14 

Impact Severity (IS) ...... 119.6 kip-ft ( 162.2 kJ) > 106 kip-ft ( 144 kJ) limit from MASH 

Exit Conditions 

Speed .............. ... ......... 38.6 mph (62 .1 k.rn/h) 

Angle . .. 21.0 deg 

Exit Box Criterion ................... .. ... . ................ ... . ....... ... ........ ... ............................... .Pass 


Vehicle Stability.. .. .... ... ...................... . ......... .... .......... .... .. ....... Satisfactory 


Vehicle Stopping Distance .. .. ... ... ... . . .. .... ... . . 234 ft- I in . (71.3 m) downstream 

Lateral ... .... .. . .... .... . .. .. . ... . . ... ......... ... . ..... 21 ft- 11 in. (6.7 m) in front 

Vehicle Damage ... ..... . . .. .. ........ ........ .. .... .......... Moderate 


VOS [16] ... .. .... .. ..... .. ..... .. .... ...... .. ........... .. ...... ..... .. .... .. ............ 01-RFQ-4 


CDC [17] ....... .... .. .................. .................... ..... ............... 01 -RDEW-4 


Maximum Interior Deformation .. ...... .. .......... .......... 0.87 in. (22 mm) 


Test Article Damage .. ....................... .................. Moderate 


Maximum Test Article Deflections 

Permanent Set .. . .... ........ .. ....... .....26% in. (679 mm) 

Dynamic ......... .................... ... .......... ........ .... ........................ 36.1 in. (917m111) 

Working Width ....... .................. .. .. .. .. ..... .. .... . ....... ........ 58.7 in. (1,491 111111) 

Transducer Data 

Transducer 

Evaluation Criteria SLICE-I SLICE-2 

(primary) 

MASH Limit 

OlV 

ft/s 

(111 /s) 

Longitudinal 

Lateral 

- 12.63 (-3 85) 

-16.60 (-5.06) 

-12.80 (-390) 

-15 .72 (-4 79) 

±40(122) 

±40 (12.2) 

ORA Longitudinal 19.77 20.34 ±20.49 

g's Lateral -11.03 - 12.47 ±20.49 

MAX Roll 

ANGULAR 

DISP. Pitch 

deg. Yaw 

THIV - ft/s (mis) 

PHO- 2's 

ASI 

14.35 

-5 .13 

-39.86 

19.62 (5 98) 

20.60 

0.82 

10.20 

-6.15 

-40.19 

20.05 (6 11) 

20.64 

0.85 

±75 

±75 

not required 

not required 

not required 

not reauired 

z 

0 

--l 

~ 3::: 0 °' ':° '< <.;; N 

~ t'--J 

'0 

Figure 59. Summary of Test Results and Sequential Photographs, Test No. MGSPCB-1 

0.000 sec 0.056 sec 0.146 sec 0.243 sec 0.554 sec 
0.000 sec 0.092 sec 0.186 sec 0.544 sec 0.774 sec 

Test Agency .. . ..... . MwRSF 

Test Number.. . ................................. MGSPCB-3 

Date .. . ................ ..... 8/25/2015 

MASH Test Designation .. . ........ ..... .. . . .......... 3-21 

Test Article .. .................. .. ..... .... .. .. ....... ......... ... MGS to PCB Transition 

Total Length . ........ .................... .......... .. 240.0 ft (73 2 m) 

Key Component- W-beam Guardrail 

Thickness .. .... 12 ga. (2 .66 mm) 

Mounting Height . .. .. ... ... . ..... .... ....... 31 in . (787 mm) 

Key Component - ASTM 992 Steel Post 

Length .. . .... 72 in . (1,829 mm) 

Embedment Depth .. . ............... ... .. 40 in . (1 ,016 mm) 

Spacing.. .. .................. . .. 75 in . (1 ,905 mm) 

Key Component - 5,000 psi PCB 

Length . . ............. ... .. 150in.(3,8 10mm) 

Width ................ ...... ..... ..... .. 22 Y, in. (572 mm) 

Height.. .............. . .. ... .. .. 32 in . (813 mm) 

Soil Type ....... . Coarse Crushed Limestone 


Vehicle Make /Model .. ................ ...... ....... 2008 Dodge Ram 1500 

Curb .. . ........ ... . 5,017 lb (2 ,276 kg) 

Test Inertial .. .. .. .... ..... .. "' ... ... ... .... .. ... .. 5,012 lb (2,273 kg) 

Gross Static .. ..... .. " . ............... .. .. 5, 177 lb (2.348 kg) 

Impact Conditions 

Speed .. . ..................................... 63 .1 mph(I015km/h) 

Angle ... . . ............. ...................... 24.6 deg 

Impact Location . approximately 12 tl-9 in. (3.9 m) US from centerline of end shoe 

lmpactSeverity(IS) ...... 115.6 kip-t1(156.7 kJ) > 106kip-t1(144 kJ) limit from MASH 

Exit Conditions 

Speed .. . ........ .......... .............. . ... .... .. ........ .43.2 mph (69 5 km/h) 

Angle .. .. . .... . ... . ................ .. .. .. . .. .. .... . .. .. 11 .3 deg 

Exit Box Criterion . . ... ............. .. ..... .. ...... ............. Pass 

Vehicle Stability .. . .. .. . . . ... .... . .............. Satisfactory 

Vehicle Stopping Distance .. . 187 tl- 9 in. (572 m) downstream 

Lateral . . ..... ..... .. .. .. ..... . 56 ft- 10 in . (17.3 111) behind 

,______,.,...."'...,_____f­..... 

0 

0 0 0 

0 

Vehicle Damage 

VOS (16] . 

CDC (17] .. 

Maximum Interior Deformation ... 

Test Article Damage .... 

Maximum Test Article Deflections 

Permanent Set .. 

Dynamic ... 

Working Width .. 

.......... .... Moderate 


. ...... ... .... ........ ... . 01-RFQ-5 


. .......... 01-RYEW-3 


. .......... 0.532 in. (13 mm) 


.. .............. Moderate 


. ............... 34% in . (873 mm) 

. ..... 37.2 in. (945 mm) 

... .. .... ... ... 58.7 in. (1 ,491 mm) 

Transducer Data 

Transducer 

Evaluation Criteria SLICE-I SLICE-2 MASH Limit 

(primary) 

OIV Longitudinal -11.26 (-343) -I 159 (-3 53) ±40 

ft/s (12.2) 

(m/s) Lateral -19.27 (-5 .87) -17.94 (-5.47) ±40 

(12 2) 

ORA Longitudinal -14.02 -14.09 ±20.49 

g's Lateral -1335 -15 .18 ±20.49 

MAX Roll 33 .23 30.55 ±75 

ANGULAR Pitch -10.60 -1110 DISP. ±75 

deg. Yaw -4223 -41.75 not required 

THIV - ft/s (mis) 22.84 (6 96) 2185 (666) not required 

PHO-g's 1429 15.40 not required 

AS! LOI 103 not required 

Figure 96. Summary of Test Results and Sequential Photographs, Test No. MGSPCB-3