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Updated 8:00 AM EST, April 15, 2008
 Traffic Responsive Ramp Meters
2004 National Summary
| Metropolitan Areas Surveyed / Returned Survey | Metropolitan Areas Reporting Traffic Responsive Ramp Meters | Number of Ramp Meters |
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| Traffic Responsive | Total | Percent |
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| 106 / 100 | 18 | 2035 | 2303 | 88% |
2004 Metropolitan Summary
| Metropolitan Area | State | Agencies Surveyed / Returned Survey | Agencies Reporting Traffic Responsive Ramp Meters | Number of Ramp Meters |
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| Traffic Responsive | Total | Percent |
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| Albany, Schenectady, Troy | NY | 2 / 2 | 0 | 0 | 0 | 0% | | Albuquerque | NM | 1 / 1 | 0 | 0 | 0 | 0% | | Allentown, Bethlehem, Easton | PA | 2 / 2 | 0 | 0 | 14 | 0% | | Asheville | NC | 1 / 1 | 0 | 0 | 0 | 0% | | Atlanta | GA | 1 / 1 | 0 | 0 | 5 | 0% | | Austin | TX | 1 / 1 | 0 | N/R* | 0 | 0% | | Bakersfield | CA | 1 / 1 | 0 | 0 | 0 | 0% | | Baltimore | MD | 1 / 1 | 0 | 0 | 0 | 0% | | Baton Rouge | LA | 1 / 1 | 0 | 0 | 0 | 0% | | Beaumont-Port Arthur | TX | 1 / 1 | 0 | N/R* | N/R* | N/R* | | Bellingham | WA | 1 / 1 | 0 | 0 | 0 | 0% | | Birmingham | AL | 1 / 1 | 0 | 0 | 0 | 0% | | Boise City | ID | 1 / 1 | 0 | 0 | 0 | 0% | | Boston, Lawrence, Salem | MA | 1 / 1 | 0 | 0 | 0 | 0% | | Buffalo, Niagara Falls | NY | 2 / 2 | 0 | 0 | 0 | 0% | | Charleston | SC | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Charlotte, Gastonia, Rock Hill | NC | 2 / 1 | 0 | N/R* | 0 | 0% | | Chattanooga | TN | 1 / 1 | 0 | 0 | 0 | 0% | | Chicago, Gary, Lake County | IL | 4 / 4 | 0 | 0 | 0 | 0% | | Cincinnati, Hamilton | OH | 1 / 1 | 1 | 5 | 5 | 100% | | Cleveland, Akron, Lorain | OH | 3 / 3 | 0 | 0 | 0 | 0% | | Columbia | SC | 1 / 1 | 0 | N/R* | 0 | 0% | | Columbus | OH | 1 / 1 | 1 | 7 | 7 | 100% | | Dallas, Fort Worth | TX | 2 / 2 | 0 | 0 | 5 | 0% | | Dayton, Springfield | OH | 1 / 1 | 0 | 0 | 0 | 0% | | Daytona Beach | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Denver, Boulder | CO | 1 / 1 | 1 | 30 | 30 | 100% | | Des Moines | IA | 1 / 1 | 0 | 0 | 0 | 0% | | Detroit, Ann Arbor | MI | 1 / 1 | 1 | 60 | 60 | 100% | | El Paso | TX | 1 / 1 | 0 | 0 | 0 | 0% | | Eugene | OR | 1 / 1 | 0 | 0 | 0 | 0% | | Fort Myers | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Fort Wayne | IN | 1 / 1 | 0 | 0 | 0 | 0% | | Fresno | CA | 1 / 1 | 1 | 37 | 37 | 100% | | Grand Rapids | MI | 1 / 1 | 0 | 0 | 0 | 0% | | Greensboro, Winston-Salem, High Point | NC | 2 / 2 | 0 | 0 | 0 | 0% | | Greenville | NC | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Greenville, Spartanburg | SC | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Hampton Roads | VA | 1 / 1 | 0 | 0 | 0 | 0% | | Harrisburg, Lebanon, Carlisle | PA | 2 / 2 | 0 | 0 | 0 | 0% | | Hartford, New Britain, Middletown | CT | 1 / 1 | 0 | 0 | 0 | 0% | | Honolulu | HI | 1 / 1 | 0 | 0 | 0 | 0% | | Houston, Galveston, Brazoria | TX | 1 / 1 | 1 | 43 | 121 | 36% | | Huntsville | AL | 1 / 1 | 0 | 0 | 0 | 0% | | Indianapolis | IN | 1 / 1 | 0 | 0 | 0 | 0% | | Jackson | MS | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Jacksonville | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Janesville-Beloit | WI | 1 / 1 | 0 | 0 | 0 | 0% | | Kansas City | MO | 2 / 2 | 0 | 0 | 0 | 0% | | Knoxville | TN | 1 / 1 | 0 | 0 | 0 | 0% | | Lancaster | PA | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Las Vegas | NV | 1 / 1 | 0 | 0 | 0 | 0% | | Little Rock, North Little Rock | AR | 1 / 1 | 0 | 0 | 0 | 0% | | Los Angeles, Anaheim, Riverside | CA | 3 / 3 | 2 | 458 | 483 | 95% | | Louisville | KY | 1 / 1 | 0 | 0 | 0 | 0% | | McAllen | TX | 1 / 1 | 0 | 0 | 0 | 0% | | Memphis | TN | 1 / 1 | 0 | 0 | 0 | 0% | | Miami, Fort Lauderdale | FL | 2 / 2 | 0 | 0 | 0 | 0% | | Milwaukee, Racine | WI | 1 / 1 | 1 | 107 | 120 | 89% | | Minneapolis, St. Paul | MN | 1 / 1 | 1 | 416 | 416 | 100% | | Modesto | CA | 1 / 1 | 0 | 0 | 0 | 0% | | Montgomery | AL | 1 / 1 | 0 | 0 | 0 | 0% | | Nashville | TN | 1 / 1 | 0 | 0 | 0 | 0% | | New Haven, Meriden | CT | 1 / 1 | 0 | 0 | 0 | 0% | | New London | CT | 1 / 1 | 0 | 0 | 0 | 0% | | New Orleans | LA | 2 / 2 | 0 | 0 | 0 | 0% | | New York, Northern New Jersey, Southwestern Connecticut | NY | 11 / 9 | 1 | 90 | 91 | 99% | | Oklahoma City | OK | 1 / 1 | 0 | 0 | 0 | 0% | | Omaha | NE | 1 / 1 | 0 | 0 | 0 | 0% | | Orlando | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Philadelphia, Wilmington, Trenton | PA | 6 / 6 | 1 | 4 | 16 | 25% | | Phoenix | AZ | 1 / 1 | 1 | 32 | 132 | 24% | | Pittsburgh, Beaver Valley | PA | 2 / 2 | 0 | 0 | 0 | 0% | | Portland, Vancouver | OR | 1 / 1 | 1 | 106 | 106 | 100% | | Providence, Pawtucket, Fall River | RI | 1 / 1 | 0 | N/R* | 0 | 0% | | Provo - Orem | UT | 1 / 1 | 0 | 0 | 0 | 0% | | Raleigh-Durham | NC | 1 / 1 | 0 | 0 | 0 | 0% | | Richmond, Petersburg | VA | 1 / 1 | 0 | 0 | 0 | 0% | | Roanoke | VA | 1 / 1 | 0 | 0 | 0 | 0% | | Rochester | NY | 1 / 1 | 0 | 0 | 0 | 0% | | Sacramento | CA | 1 / 0 | 0 | N/R* | N/R* | N/R* | | Salinas | CA | 1 / 1 | 0 | N/R* | N/R* | N/R* | | Salt Lake City, Ogden | UT | 2 / 2 | 2 | 30 | 30 | 100% | | San Antonio | TX | 1 / 1 | 0 | 0 | 1 | 0% | | San Diego | CA | 1 / 1 | 1 | 265 | 273 | 97% | | San Francisco, Oakland, San Jose | CA | 1 / 1 | 1 | 191 | 191 | 100% | | San Juan | PR | 1 / 1 | 0 | 0 | 0 | 0% | | San Luis Obispo | CA | 1 / 1 | 0 | 0 | 0 | 0% | | Santa Barbara | CA | 1 / 1 | 0 | N/R* | N/R* | N/R* | | Sarasota-Bradenton | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Scranton, Wilkes-Barre | PA | 2 / 2 | 0 | 0 | 0 | 0% | | Seattle, Tacoma | WA | 2 / 2 | 1 | 130 | 135 | 96% | | Spokane | WA | 1 / 1 | 0 | 0 | 0 | 0% | | Springfield | MA | 1 / 1 | 0 | 0 | 0 | 0% | | Springfield(MO) | MO | 1 / 1 | 0 | 0 | 0 | 0% | | St. Louis | MO | 2 / 2 | 0 | 0 | 1 | 0% | | Stockton | CA | 1 / 1 | 0 | N/R* | 0 | 0% | | Syracuse | NY | 2 / 2 | 0 | 0 | 0 | 0% | | Tampa, St. Petersburg, Clearwater | FL | 1 / 1 | 0 | N/R* | 0 | 0% | | Toledo | OH | 2 / 2 | 0 | 0 | 0 | 0% | | Tucson | AZ | 1 / 1 | 0 | 0 | 0 | 0% | | Tulsa | OK | 1 / 1 | 0 | 0 | 0 | 0% | | Washington | DC | 3 / 3 | 1 | 24 | 24 | 100% | | West Palm Beach, Boca Raton, Delray | FL | 1 / 1 | 0 | 0 | 0 | 0% | | Wichita | KS | 1 / 1 | 0 | 0 | 0 | 0% | | Youngstown, Warren | OH | 1 / 1 | 0 | 0 | 0 | 0% | | 106 Metropolitan Areas * N/R = No response |
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