Foreword

1. Report No.

FHWA-HOP-05-026
FHWA-JPO-09-012

2. Government Accession No.

3. Recipient’s Catalog No.

4. Title and Subtitle

Road Weather Information System Environmental Sensor Station Siting Guidelines, Version 2.0

5. Report Date

November 2008

7. Author(s)

John Manfredi, Thomas Walters, Gregory Wilke, Leon Osborne (Meridian Environmental Technology Inc., Grand Forks, ND), Robert Hart (Meridian Environmental Technology Inc., Grand Forks, ND), Tom Incrocci, Tom Schmitt (T&S Diversified Inc., Glendale, AZ), V. Kyle Garrett (Mixon/Hill, Inc.), Brenda Boyce (Mixon/Hill, Inc.),
Dan Krechmer (Cambridge Systematics, Inc.)

8. Performing Organization Report No.

9. Performing Organization Name and Address

Science Applications International Corporation 7990 Science Applications Court; M/S: CV-48 Vienna, VA 22182

1. Meridian Environmental Technology Inc., Grand Forks, ND

2. T&S Diversified Inc., Glendale, AZ

3. Mixon/Hill, Inc.

4. Cambridge Systematics, Inc.

10. Work Unit No.

11. Contract or Grant No.

DTFH61-01-C-00180

12. Sponsoring Agency Name and Address

Federal Highway Administration, U.S. Department of Transportation
Office of Transportation Operations, Road Weather Management Program
1200 New Jersey Avenue
Washington, DC 20590

13. Type of Report and Period Covered

November 2003 – November 2008

14. Sponsoring Agency Code

15. Supplementary Notes

Original work was performed by SAIC, Meridian, and T&S. Updated by Mixon/Hill and Cambridge Systematics, Inc. COTM is Roemer Alfelor.

16. Abstract

FHWA initiated an effort in 2007 to evaluate and update, as necessary the ESS Guidelines first published in 2004 (FHWA-HOP-05-026). This effort is summarized in a companion report “Implementation and Evaluation of RWIS ESS Siting Guidelines”. The consensus of the project was that the original Guidelines covered most of the major issues in the siting of ESS and provided the necessary information in a concise manner. The major change made to this version of the Guidelines involved an update to the metadata table that was included in the original report. Since the original Guidelines were developed a major effort was conducted as part of the Clarus project to define a standard set of metadata for ESS. An expanded metadata table was thus included in the Guidelines showing Clarus metadata in three categories; required, recommended and optional. Other than the modification to the metadata table, most of the additions were limited, and designed to highlight areas of concern noted by DOT’s with ESS experience. The feedback from most of the DOT’s interviewed was positive and they expressed an interest in using the document for future deployments. Several noted that they would require their contractors to use it.

17. Key Words

Environmental sensor stations (ESS), meteorological instruments, pavement sensors, road weather data, road weather information system (RWIS), sensor siting

18. Distribution Statement

No restriction.

19. Security Classif. (of this report)

Unclassified

20. Security Classif. (of this page)

Unclassified

21. No of Pages

83

22. Price