U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


Skip to content
FacebookYouTubeTwitterFlickrLinkedIn

Safety

eSubscribe
eSubscribe Envelope

FHWA Home / Safety / Roadway Safety Professional Capacity Building / P2P Technical Assistance / Horizontal Curves Virtual Peer Exchange – January 2013

Horizontal Curves Virtual Peer Exchange – January 2013

Downloadable Version
PDF [306 KB]

An RSPCB Peer Exchange


About the Peer Exchange

FHWA's RSPCB Peer-to-Peer Program (P2P) supports and sponsors peer exchanges and workshops hosted by agencies.

Date
January 24, 2013

Hosts
FHWA Office of Safety

Key Participants
Alabama Department of Transportation
FHWA Alabama Division Office

Florida Department of Transportation
FHWA Florida Division Office

Indiana Department of Transportation
FHWA Indiana Division Office

Louisiana Department of Transportation and Development
FHWA Louisiana Division Office

Missouri Department of Transportation
FHWA Missouri Division Office

Oklahoma Department of Transportation
FHWA Oklahoma Division Office

South Carolina Department of Transportation
FHWA South Carolina Division Office

Tennessee Department of Transportation
FHWA Tennessee Division Office

Texas Department of Transportation
FHWA Texas Division Office

West Virginia Department of Transportation
FHWA West Virginia Division Office

FHWA Resource Center

U.S. DOT Volpe Center

FHWA's Office of Safety sponsors Peer to Peer (P2P) events.
Learn more

Caution sign divided into four sections: a stick figure paging through a document, a stick figure pedestrian, a traffic light in the center of an intersection, and a stick figure in a car's driver's seat

Table of Contents

1. Introduction and Background

2. Peer Exchange Proceedings

3. Roundtable Discussion

4. Key Areas of Interest and Next Steps

5. Feedback and Suggestions

Appendix A: Event Participants

Appendix B: Event Agenda

Appendix C: Web Sites


1. Introduction and Background

This report provides a summary of a peer-to-peer videoconference sponsored by the Federal Highway Administration (FHWA) Office of Safety. The videoconference was the second in a series of roadway departure-focused peer exchanges sponsored by the Office of Safety as a follow-up to face-to-face peer exchanges held with roadway departure Focus States in 2008 and 2009.

The Office of Safety selected ten States—Alabama, Florida, Indiana, Louisiana, Missouri, Oklahoma, South Carolina, Tennessee, Texas, and West Virginia—to participate in this virtual peer exchange. The selected States were chosen based on the number and percentage of fatal crashes on horizontal curves, as well as geographic location.

The peer exchange provided opportunities for participants to share their experiences on a range of topics including:

The event also allowed stakeholders to learn from peers who demonstrated innovative approaches to safety on horizontal curves, including edge line striping and high friction surface treatments (HFST). Peer presentations were made by the Missouri Department of Transportation (MoDOT), the Louisiana Local Transportation Assistance Program (LA LTAP), and the West Virginia Department of Transportation (WV DOT).

Sixty-six participants representing Departments of Transportation (DOT), Local Transportation Assistance Programs (LTAP), and FHWA Division Offices attended the virtual peer exchange (see Appendix A for the complete list of event participants and presenters). The peer exchange discussions and presentations focused on the following topics (see Appendix B for the full agenda):

Facilitated roundtable discussions on each of the topics were a significant component of the event. During the discussion, each State shared its experiences in addressing safety on horizontal curves, including innovative practices and implementation challenges.

Return to Top


2. Peer Exchange Proceedings

Welcoming Remarks

An FHWA Office of Safety representative welcomed participants to the peer exchange. Attendees then introduced themselves and briefly described what they were hoping to learn from the event.

Peer Presentations

Peers addressed a number of topics related to addressing safety on horizontal curves. The following section provides an overview of their presentations.

Systemic Implementation of Edge Line Striping
John Miller, P.E. – Traffic Safety Engineer, Missouri Department of Transportation

MoDOT's Traffic Safety Engineer discussed the State's initiative on systemic implementation of safety countermeasures. Mr. Miller spoke in detail about Missouri's implementation of edge line striping on rural roads, an initiative which began in 2008, as one example of Missouri's effort to apply systemic approaches to highway safety. Missouri's edge line striping program was initiated in 2008 and was funded through the High Risk Rural Roads Program (HRRRP). This program involved painting shoulder edge lines on roads with Average Daily Traffic (ADT) volumes between 400 and 1,000.

Until 2008, MoDOT painted edge line stripes only on roads which had greater than 1,000 ADT; however Missouri has approximately 18,500 centerline miles of potentially eligible HRRRP routes with traffic volumes below 1,000 ADT. A review of the data showed a "Run-off-Road" crash problem, with approximately two-thirds of those occurring in horizontal curves; between 2005 and 2007, approximately 339 fatalities and 2,280 disabling injuries occurred on those roads. However, 65 percent of these fatalities and injuries occurred on the small portion of the roadway system where traffic volumes ranged between 400 and 1,000 ADT (6,800 miles or 37 percent). In 2009, MoDOT's Central District painted edge lines on the majority of its eligible routes, approximately 570 centerline miles on 73 roads. MoDOT performed an Empirical Bayes Analysis using crash data for the three years prior to the project and two years after, and determined that if the project was implemented state wide, 14 fatalities and 95 severe injuries would be prevented each year.

Mr. Miller described the State's initiative on systemic implementation of safety countermeasures. The systemic approach allows the user to address "worst first" problem crash types. MoDOT presented both the benefits and challenges of using a systemic approach for highway safety countermeasures. Benefits include:

Challenges to using a systemic approach were also discussed including:

Systemic projects in Missouri include painting edge lines on the majority of its eligible routes; installing median guard cable on freeways; and installing shoulder rumble strips on major roads on the State system.

Louisiana Local Technical Assistance Program – Horizontal Curve Crash Identification Overview
Marie B. Walsh, Director and Jason Tyler – LA Local Transportation Assistance Program

Representatives from the Louisiana LTAP discussed Louisiana's experience identifying horizontal curve crashes. Louisiana has a higher percentage of roads than average owned by the State as opposed to local municipalities. Approximately 20 to 25 percent of all fatalities occur on local roads in Louisiana and this has spiked in recent years. Louisiana's roadway safety program has faced the challenge of a lack of road data, incomplete crash data, and limited exposure data.

Mr. Tyler discussed how Louisiana identified crashes on horizontal curves which account for 49 percent of all local road fatalities and are 6.5 times more likely to be fatal than other local road crashes. This was a particular challenge as Louisiana has no certified local road database and has incomplete crash and exposure data as well as no ADT counts. Mr. Tyler's team developed a systematic approach using Geographic Information System (GIS) mapping to identify crashes which occurred on horizontal curves. The approach involves visual identification of curves, a process which took three months by a single person. Crashes were then overlapped with the identified curves. Moving forward, the LA LTAP is looking to begin a pilot project with locals. A parish-wide curve improvement project will include signing, pavement markings, and roadway and engineering assessments.

Details on Louisiana's program include:

High Friction Surface Treatment – West Virginia's Plan to Reduce Roadway Departure Crashes
Donna J Hardy, PE – Mobility & Safety Engineer, WV Division of Highways, Traffic Engineering Division

The Mobility and Safety Engineer from the West Virginia Division of Highways (WVDOH) discussed the State's experience using HFST on its roadways. West Virginia has applied HFST at 26 sites with an additional 17 sites programmed and 8 more planned as of December 2012. HFST has been used to address roadway departure issues primarily on horizontal curves, but was also used on a vertical curve project; its use is being expanded to bridge decks and roads near springs and rivers which are more susceptible to freezing and black ice.

WVDOH presented important information regarding HFST installation including:

HFSTs are comprised of two components, a polymer and an aggregate. West Virginia only allows Bauxite for use as an aggregate. To date, WVDOH has used three vendors for HSFTs: Tyregrip (23 sites), Ebond Epoxy and Bauxite Materials (2 sites), and Safe T Grip (1 site).

West Virginia's first project was a demonstration on WV 3 in Boone County. The Tyregrip product was applied mechanically and WVDOH paid only for the materials. The project resulted in a drastic reduction in roadway departure crashes. Similar success has been demonstrated at most of the other projects as well. Nine of WVDOH's ten districts have completed at least one project and are requesting additional installations.

Of the 26 completed sites, there were application issues at three sites. Two of those sites have been corrected at no cost to WVDOH and they are in negotiations on the third site. The projects in the table below highlight potential challenges and how they can be addressed for future projects.

Project Location/Existing Conditions Issues with HFST Installation Solutions Implemented
WV 20 - Mercer County
  • Existing road has many horizontal and vertical curves
  • Shortage of binder material - job delayed.
  • Binder and aggregate were applied manually.
  • Heat and humidity were a problem for curing times.
  • Aggregate stockpile was too far from application and aggregate did not adhere.
  • Holes appeared in aggregate - loose aggregate on shoulders.
  • Treatment was re-applied mechanically with success.
WV 20 - Mercer County
  • Road was listed in Transparency 5% reports.
  • Heavy truck traffic, vertical grade issues and many horizontal curves.
  • Numerous median crossover crashes; cable median was frequently being repaired.
  • Material was applied mechanically with a single lane closure.
  • Truck traffic was too close to the installation, "blowing" the epoxy and preventing the aggregate from binding.
  • The application truck was travelling at a higher speed than what is recommended.
  • The HFST was re-installed with lane closures to prevent truck traffic in the adjacent lane.
  • Speed of application truck was lowered.

Lessons learned from completed projects include:

WVDOH's Mobility and Safety section is performing a three year post evaluation of crashes occurring at HFST sites.

Group discussion regarding HFSTs:
FHWA is working with the American Traffic Safety Services Association (ATSSA) and the American Association of State Highway and Transportation Officials (AASHTO) to develop a specification for HFST. A long term specification will take significant time to get approval through AASHTO; there are plans to provide an interim specification, since the process is still evolving. California, Tennessee and Maryland were noted as states that have good specifications.

The group discussed whether increasing superelevation or applying HFSTs was a better way of decreasing roadway departures on curves. Some noted that increased superelevation may cause people to drive faster and not actually improve the safety. HFST won't cause people to drive faster but has been shown to increase safety.

Return to Top


3. Roundtable Discussion

A number of key topics were discussed during the roundtable discussions.

Q: Does your state have a program to address horizontal curves?

Q: What new ideas and techniques is your state using for horizontal curves?

As an example of a new idea, a pavement marking developed and used in Pennsylvania and installed experimentally in Iowa was shown to the group. The treatment is a turn arrow with the word "SLOW" on the pavement in advance of curves. (See photo below). The Pennsylvania Department of Transportation (PennDOT) installed this at a few hundred locations and noted significant reductions in crashes initially. They were unable to determine its long-term effects due to difficulties in tracking maintenance of the markings. Note the treatment is considered experimental per the Manual on Uniform Traffic Control Devices (MUTCD), because the arrow symbol is specifically designated for turn lanes.

Photograph of curve warning pavement markings ('SLOW' and an arrow)

Other feedback from the participating states included:

Return to Top


4. Key Areas of Interest and Next Steps

At the conclusion of the roundtable discussion, states discussed key areas of interest based on information that emerged from the peer exchange, as well as topics that they intend to explore in the future:

Return to Top


5. Feedback and Suggestions

Participants noted that the peer exchange went smoothly with good discussions and that it was appropriate in time and scope. General comments included: "exceeded my expectations" and "worth the time spent." All of the states indicated that they left the peer exchange with better knowledge of the subject matter and many plan to follow up with contacts gained during the exchange and implement some of the new ideas they heard. Highlights identified by the participants included:

Suggestions on how the event could have been improved included:

Overall, the group consensus was that the peer exchange was very helpful. One participant noted, "The pace was good and the presenters were knowledgeable. It was great to catch up on the emerging state of the practice from other locations." Other attendees said that the "greatest benefit of the event was hearing the different challenges that others are going through" and "learning about countermeasures that worked, didn't work, and might work." States appreciated the opportunity to spend time with staff from the FHWA Division Office, LTAP, and State DOT.

Return to Top


Appendix A: Event Participants

FHWA/Volpe
Dick Albin
Safety Engineer
Organization: FHWA Resource Center
Business Phone Number: 303-550-8804
Business Email: dick.albin@dot.gov
Frank Julian
Safety Engineer
Organization: FHWA Resource Center
Business Phone Number: 404-562-3689
Business Email: frank.julian@dot.gov
Melonie Barrington
Transportation Specialist
Organization: FHWA Office of Safety
Business Phone Number: 202-366-8029
Business Email: melonie.barrington@dot.gov
Jay Monty
Planner
Organization: US DOT/Volpe
Business Phone Number: 617-494-3952
Business Email: joseph.monty.ctr@dot.gov
Joe Cheung
Engineer
Organization: FHWA Office of Safety
Business Phone Number: 202-366-6994
Business Email: joseph.cheung@dot.gov
Cathy Satterfield
Safety Engineer
Organization: FHWA Office of Safety
Business Phone Number: 708-283-3552
Business Email: cathy.satterfield@dot.gov
Mike Griffith
Office Director, Safety Technologies
Organization: FHWA Office of Safety
Business Phone Number: 202-366-9469
Business Email: mike.griffith@dot.gov
Susan Smichenko
Community Planner
Organization: US DOT/Volpe
Business Phone Number: 617-494-3438
Business Email: susan.smichenko@dot.gov
Alabama
Tim Barnett
State Safety Operations Engineer
Organization: Alabama DOT
Business Phone Number: 334-353-6464
Business Email: barnettt@dot.state.al.us
Linda Guin
Safety & Technology Engineer
Organization: FHWA - AL Division
Business Phone Number: 334-274-6353
Business Email: linda.guin@dot.gov
Stacey Glass
State Traffic Engineer
Organization: Alabama Department of Transportation
Business Phone Number: 334-242-6275
Business Email: glasss@dot.state.al.us
Stuart Manson
Safety Engineering Analyst
Organization: Alabama Department of Transportation
Business Phone Number: 334-353-6462
Business Email: mansons@dot.state.al.us
Florida
Rafiq Darji
Construction & Materials Engineer
Organization: FHWA - FL Division
Business Phone Number: 850-553-2242
Business Email: rafiq.darji@dot.gov
Kris Milster
ITS/Traffic Operations Engineer
Organization: FHWA - FL Division
Business Phone Number: 850-553-2246
Business Email: kris.milster@dot.gov
Felix Delgado
Safety Specialist
Organization: FHWA - FL Division
Business Phone Number: 850-553-2229
Business Email: felix.delgado@dot.gov
Joseph Santos
State Safety Engineer
Organization: Florida Department of Transportation
Business Phone Number: 850-245-1502
Business Email: joseph.santos@dot.state.fl.us
Fred Heery
Deputy State Traffic Operations Engineer
Organization: Florida Department of Transportation
Business Phone Number: 850-410-5416
Business Email: fred.heery@dot.state.fl.us
 
Indiana
Robert Dirks
Team Leader - Design and Construction
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7492
Business Email: robert.dirks@dot.gov
Hillary Lowther
Traffic Engineer
Organization: Indiana Department of Transportation
Business Phone Number: 812-524-3711
Business Email: hlowther@indot.in.gov
Rick Drumm
Safety Engineer
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7487
Business Email: rick.drumm@dot.gov
Janice Osadczuk
Team Leader Engineering Services
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7486
Business Email: janice.osadczuk@dot.gov
Eryn Fletcher
Transportation Engineer
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7489
Business Email: eryn.fletcher@dot.gov
Dana Plattner
District Traffic Engineer
Organization: Indiana Department of Transportation
Business Phone Number: 260-969-8233
Business Email: dplattner@indot.in.gov
Bren George-Nwabugwu
Sr. Transportation Engineer
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7342
Business Email: bren.george@dot.gov
Laura Slusher
Traffic Safety Engineer
Organization: Indiana LTAP
Business Phone Number: 765-494-7038
Business Email: lslusher@purdue.edu
Louis Haasis
Transportation Engineer
Organization: FHWA
Business Phone Number: 317-226-5617
Business Email: lou.haasis@dot.gov
Bill Smith
District Traffic Engineer
Organization: Indiana Department of Transportation
Business Phone Number: 765-361-5631
Business Email: bsmith@indot.in.gov
Michael Holowaty
Manager, Office of Traffic Safety
Organization: Indiana Department of Transportation
Business Phone Number: 317-232-5337
Business Email: mholowaty@indot.in.gov
Brad Steckler
Director of Traffic Engineering
Organization: Indiana Department of Transportation
Business Phone Number: 317-232-5137
Business Email: bsteckler@indot.in.gov
Leslie Lahndt
Transportation Engineer
Organization: FHWA - Indiana Division
Business Phone Number: 317-226-7481
Business Email: leslie.lahndt@dot.gov
 
Louisiana
Jim Chapman
Highway Safety EI
Organization: LA DOTD
Business Phone Number: 225-242-4574
Business Email: james.chapman@la.gov
Jason Taylor
Local Road Safety Engineer
Organization: Louisiana LTAP
Business Phone Number: 225-767-9717
Business Email: jason.taylor@la.gov
Joshua Harrouch
Engineer 6 DOTD
Organization: LA DOTD
Business Phone Number: 225-242-4640
Business Email: joshua.harrouch@la.gov
Betsey Tramonte
Safety Programs Coordinator
Organization: FHWA – LA Division
Business Phone Number: 225-757-7613
Business Email: betsey.tramonte@dot.gov
Dan Magri
Highway Safety Administrator
Organization: LA DOTD
Business Phone Number: 225-379-1871
Business Email: dan.magri@la.gov
Marie Walsh
Director
Organization: Louisiana LTAP
Business Phone Number: 225-767-9184
Business Email: marie.walsh@la.gov
Missouri
John Miller
Traffic Safety Engineer
Organization: Missouri Department of Transportation
Business Phone Number: 573-526-1759
Business Email: john.p.miller@modot.mo.gov
Tamara Pitts
Senior Traffic Studies Specialist
Organization: Missouri Department of Transportation
Business Phone Number: 573-526-6885
Business Email: tamara.pitts@modot.mo.gov
Brian Nevins
Environmental Specialist
Organization: FHWA
Business Phone Number: 573-638-2624
Business Email: brian.nevins@dot.gov
Marc Thornsberry
Safety & Mobility Engineer
Organization: FHWA - Missouri Division
Business Phone Number: 573-638-2616
Business Email: marc.thornsberry@dot.gov
Oklahoma
Faria Emamian
Assistant Chief Engineer
Organization: Oklahoma Department of Transportation
Business Phone Number: 405-521-2867
Business Email: femamian@odot.org
Huy Nguyen
Safety Engineer
Organization: FHWA-OK Division
Business Phone Number: 405-254-3345
Business Email: huy.nguyen@dot.gov
David Glabas
Manager, Collision Analysis & Safety Branch
Organization: Oklahoma DOT
Business Phone Number: 405-521-4157
Business Email: dglabas@odot.org
Matt Warren
Engineer Intern
Organization: Oklahoma DOT
Business Phone Number: 405-521-3946
Business Email: mwarren@odot.org
South Carolina
Eric Hall
Safety Project Development Engineer
Organization: South Carolina Department of Transportation
Business Phone Number: 803-737-2083
Business Email: hallse@scdot.org
Joey Riddle
Safety Program Engineering
Organization: South Carolina Department of Transportation
Business Phone Number: 803-348-5378
Business Email: riddlejd@scdot.org
Brett Harrelson
State Safety Engineer
Organization: SCDOT
Business Phone Number: 803-737-3378
Business Email: harrelsodb@scdot.org
Keith Riddle
Safety Project Engineer
Organization: South Carolina Department of Transportation
Business Phone Number: 803-737-0403
Business Email: riddlewk@scdot.org
Dan Hinton
Safety and Traffic Engineer
Organization: FHWA-SC Division
Business Phone Number: 803-253-3887
Business Email: daniel.hinton@dot.gov
Mike Sawyer
PM
Organization: Traffic Engineering
Business Phone Number: 803-737-1047
Business Email: sawyermj@scdot.org
Richard Jenkins
State Traffic Management Engineer
Organization: South Carolina Department of Transportation
Business Phone Number: 803-737-1454
Business Email: jenkinsrf@scdot.org
 
Tennessee
Jessica Rich
Safety Engineer
Organization: FHWA - TN Division
Business Phone Number: 615-781-5788
Business Email: jessica.rich@dot.gov
Joseph Kerstetter
Materials Assistant 3
Organization: Tennessee Department of Transportation
Business Phone Number: 615-350-4193
Business Email: joseph.kerstetter@tn.gov
Brian Hurst
Tennessee Transportation Safety Manager
Organization: Tennessee Department of Transportation
Business Phone Number: 615-253-2433
Business Email: brian.hurst@tn.gov
 
Texas
Michael Chacon
Policy & Standards Engineer
Organization: Texas Department of Transportation
Business Phone Number: 512-416-3120
Business Email: michael.chacon@txdot.gov
Darren McDaniel
Speed Zone Engineer
Organization: Texas Department of Transportation
Business Phone Number: 512-416-3331
Business Email: darren.mcdaniel@txdot.gov
Cynthia Landez
Transportation Engineer
Organization: Texas Department of Transportation
Business Phone Number: 512-416-2391
Business Email: cynthia.landez@txdot.gov
Rory Meza
Director, Roadway Design Section
Organization: Texas Department of Transportation
Business Phone Number: 512-416-2678
Business Email: rory.meza@txdot.gov
Christopher Lindsey
Transportation Engineer
Organization: Texas Department of Transportation
Business Phone Number: 512-416-2750
Business Email: christopher.lindsey@txdot.gov
Margaret Moore
Traffic Engineering Section Director
Organization: Texas Department of Transportation
Business Phone Number: 512-416-3135
Business Email: meg.moore@txdot.gov
William Lowery
Director
Organization: Lone Star LTAP at TEEX
Business Phone Number: 979-845-2912
Business Email: bill.lowery@teex.tamu.edu
Stephen Ratke
Safety Engineer
Organization: FHWA - Texas Division
Business Phone Number: 512-536-5924
Business Email: stephen.ratke@dot.gov
West Virginia
Ryan Brumfield
Safety Engineer
Organization: FHWA - WV Division
Business Phone Number: 304-347-5473
Business Email: ryan.brumfield@dot.gov
Jason Workman
Director of Program Development
Organization: FHWA - WV Division
Business Phone Number: 304-347-5271
Business Email: jason.workman@dot.gov
Todd West
Standards Unit Leader
Organization: WVDOH
Business Phone Number: 304-558-9738
Business Email: todd.g.west@wv.gov
Joe Hall
Technical Policy QA/QC Engineer
Organization: WV Division of Highways, Engineering Division
Business Phone Number: 304-558-9733
Business Email: joe.h.hall@wv.gov

Return to Top


Appendix B: Event Agenda

Horizontal Curve Peer Exchange
Agenda
Thursday, January 24, 2013

10:30 a.m. to 3:00 p.m. Eastern Time

Thursday, January 24, 2012
10:30 Welcome and Introductions

Presentations and Q&A
Systemic Implementation of Edge Line Striping, John Miller, MoDOT
Identifying and Treating Horizontal Curves on Local Roads, Marie Walsh, LA LTAP

Roundtable Discussion

  • Selecting implementation strategies - Systemic, Hot Spot, other
  • Using data to determine which curves to treat
    • Crash Data - state, national, and local sources and issues
    • Roadway Data - widths, intersections, degree of curve
    • Other Data
  • Selecting treatments/countermeasures
  • Efficient means of gathering necessary info for implementation
  • Prioritizing projects
12:30 Working Lunch
Local discussion at each site on Addressing Safety on Curves

Presentation and Q&A
High Friction Surface Treatments on Curves, Donna Hardy, WVDOH

Roundtable Discussion

  • Challenges to treating local roads - including where they were never engineered
  • Funding projects - HSIP and beyond (funding match, etc.)
  • Implementation concern with pavement countermeasures (friction, rumble strips, etc.)
  • Taking risks - why or why not?

Take-Away Items
Where do we go from here?

  • What will you do differently
  • What concerns still need to be resolved
  • Future peer-to-peer opportunities
3:00 Close

Return to Top


Appendix C: Web Sites

The list below provides links to websites discussed during the peer exchange.

HFST Specifications
Site: High Friction Roads
Link: www.highfrictionroads.com
Texas Profile Marking Standard
Site: TXDOT Profile Marking Standard
Link: bit.ly/WpnhHc

back to Table of Contents


Page last modified on September 4, 2014.
Safe Roads for a Safer Future - Investment in roadway safety saves lives
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000