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Updated 8:00 AM EST, April 15, 2008
Deployment Statistics
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Number of Environmental Road Hazard Warning Systems at Specific Road Classifications
2004 National Summary
Number of States Surveyed / Returned Survey
States with Deployed Systems
Total Number of Deployed Systems
Number of Systems Located at the Following Road Classifications
Freeway or Other Limited Access Highway
Other Multi-lane Highway (non-limited access)
2-Lane Highway
50 / 46
22
341
146
59
65
2004 Statewide Summary
Click here to show only the States with the specified technology
Click on a hyperlinked column header to sort the data by the column value.
State
Total Number of Deployed Systems
Number of Systems Located at the Following Road Classifications
Freeway or Other Limited Access Highway
Other Multi-lane Highway (non-limited access)
2-Lane Highway
Alabama
1
1
N/R*
N/R*
Alaska
0
Arizona
0
Arkansas
0
California
26
21
11
11
Colorado
3
3
N/R*
N/R*
Connecticut
0
Delaware
0
N/R*
N/R*
N/R*
Florida
0
Georgia
1
1
N/R*
N/R*
Hawaii
0
Idaho
2
1
N/R*
1
Illinois
N/R*
N/R*
N/R*
N/R*
Indiana
N/R*
N/R*
N/R*
N/R*
Iowa
1
1
0
0
Kansas
0
Kentucky
0
Louisiana
1
1
N/R*
N/R*
Maine
0
Maryland
60
30
25
5
Massachusetts
0
Michigan
0
Minnesota
88
N/R*
N/R*
N/R*
Mississippi
N/R*
N/R*
N/R*
N/R*
Missouri
1
1
N/R*
N/R*
Montana
60
20
1
39
Nebraska
0
Nevada
3
2
1
N/R*
New Hampshire
0
New Jersey
31
10
21
N/R*
New Mexico
0
New York
4
4
N/R*
N/R*
North Carolina
2
2
N/R*
N/R*
North Dakota
0
Ohio
0
Oklahoma
0
Oregon
5
1
N/R*
4
Pennsylvania
N/R*
N/R*
N/R*
N/R*
Rhode Island
0
South Carolina
1
1
N/R*
N/R*
South Dakota
0
Tennessee
1
1
N/R*
N/R*
Texas
37
37
N/R*
N/R*
Utah
11
7
0
4
Vermont
0
Virginia
N/R*
N/R*
N/R*
N/R*
Washington State
0
West Virginia
1
1
N/R*
N/R*
Wisconsin
0
Wyoming
1
0
0
1
50 States * N/R = No response