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Updated 8:00 AM EST, April 15, 2008
 Circumstance for Closing Ramps as a Traffic Management Strategy
2004 National Summary
| Metropolitan Areas Surveyed / Returned Survey | Metropolitan Areas Closing Ramps in the Following Circumstances |
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| Time of Day | Traffic Incidents | Planned Special Events |
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| 106 / 100 | 3 | 31 | 24 |
2004 Metropolitan Summary
| Metropolitan Area | State | Agencies Surveyed / Returned Survey | Agencies Closing Ramps in the Following Circumstances |
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| Time of Day | Traffic Incidents | Planned Special Events |
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| Albany, Schenectady, Troy | NY | 2 / 2 | 0 | 0 | 0 | | Albuquerque | NM | 1 / 1 | 0 | 0 | 0 | | Allentown, Bethlehem, Easton | PA | 2 / 2 | 0 | 0 | 0 | | Asheville | NC | 1 / 1 | 0 | 0 | 0 | | Atlanta | GA | 1 / 1 | 0 | 1 | 1 | | Austin | TX | 1 / 1 | 0 | 0 | 0 | | Bakersfield | CA | 1 / 1 | 0 | 0 | 0 | | Baltimore | MD | 1 / 1 | 0 | 0 | 0 | | Baton Rouge | LA | 1 / 1 | 0 | 0 | 0 | | Beaumont-Port Arthur | TX | 1 / 1 | 1 | 0 | 0 | | Bellingham | WA | 1 / 1 | 0 | 0 | 0 | | Birmingham | AL | 1 / 1 | 0 | 1 | 0 | | Boise City | ID | 1 / 1 | 0 | 0 | 0 | | Boston, Lawrence, Salem | MA | 1 / 1 | 0 | 0 | 0 | | Buffalo, Niagara Falls | NY | 2 / 2 | 0 | 0 | 0 | | Charleston | SC | 1 / 0 | 0 | 0 | 0 | | Charlotte, Gastonia, Rock Hill | NC | 2 / 1 | 0 | 1 | 1 | | Chattanooga | TN | 1 / 1 | 0 | 0 | 0 | | Chicago, Gary, Lake County | IL | 4 / 4 | 0 | 2 | 2 | | Cincinnati, Hamilton | OH | 1 / 1 | 0 | 0 | 0 | | Cleveland, Akron, Lorain | OH | 3 / 3 | 0 | 0 | 0 | | Columbia | SC | 1 / 1 | 0 | 0 | 0 | | Columbus | OH | 1 / 1 | 0 | 1 | 1 | | Dallas, Fort Worth | TX | 2 / 2 | 0 | 0 | 0 | | Dayton, Springfield | OH | 1 / 1 | 0 | 0 | 0 | | Daytona Beach | FL | 1 / 1 | 0 | 0 | 0 | | Denver, Boulder | CO | 1 / 1 | 0 | 0 | 0 | | Des Moines | IA | 1 / 1 | 0 | 0 | 0 | | Detroit, Ann Arbor | MI | 1 / 1 | 0 | 0 | 1 | | El Paso | TX | 1 / 1 | 0 | 1 | 0 | | Eugene | OR | 1 / 1 | 0 | 0 | 0 | | Fort Myers | FL | 1 / 1 | 0 | 0 | 0 | | Fort Wayne | IN | 1 / 1 | 0 | 0 | 0 | | Fresno | CA | 1 / 1 | 0 | 0 | 0 | | Grand Rapids | MI | 1 / 1 | 0 | 0 | 1 | | Greensboro, Winston-Salem, High Point | NC | 2 / 2 | 0 | 1 | 1 | | Greenville | NC | 1 / 0 | 0 | 0 | 0 | | Greenville, Spartanburg | SC | 1 / 0 | 0 | 0 | 0 | | Hampton Roads | VA | 1 / 1 | 0 | 0 | 0 | | Harrisburg, Lebanon, Carlisle | PA | 2 / 2 | 0 | 1 | 1 | | Hartford, New Britain, Middletown | CT | 1 / 1 | 0 | 0 | 0 | | Honolulu | HI | 1 / 1 | 0 | 0 | 0 | | Houston, Galveston, Brazoria | TX | 1 / 1 | 0 | 0 | 0 | | Huntsville | AL | 1 / 1 | 0 | 0 | 0 | | Indianapolis | IN | 1 / 1 | 0 | 1 | 1 | | Jackson | MS | 1 / 0 | 0 | 0 | 0 | | Jacksonville | FL | 1 / 1 | 0 | 0 | 0 | | Janesville-Beloit | WI | 1 / 1 | 0 | 1 | 0 | | Kansas City | MO | 2 / 2 | 0 | 0 | 0 | | Knoxville | TN | 1 / 1 | 0 | 0 | 0 | | Lancaster | PA | 1 / 0 | 0 | 0 | 0 | | Las Vegas | NV | 1 / 1 | 0 | 1 | 1 | | Little Rock, North Little Rock | AR | 1 / 1 | 0 | 0 | 0 | | Los Angeles, Anaheim, Riverside | CA | 3 / 3 | 0 | 2 | 0 | | Louisville | KY | 1 / 1 | 0 | 0 | 0 | | McAllen | TX | 1 / 1 | 1 | 1 | 1 | | Memphis | TN | 1 / 1 | 0 | 0 | 0 | | Miami, Fort Lauderdale | FL | 2 / 2 | 0 | 1 | 1 | | Milwaukee, Racine | WI | 1 / 1 | 0 | 1 | 0 | | Minneapolis, St. Paul | MN | 1 / 1 | 0 | 1 | 1 | | Modesto | CA | 1 / 1 | 0 | 0 | 0 | | Montgomery | AL | 1 / 1 | 0 | 0 | 0 | | Nashville | TN | 1 / 1 | 0 | 0 | 0 | | New Haven, Meriden | CT | 1 / 1 | 0 | 1 | 0 | | New London | CT | 1 / 1 | 0 | 1 | 1 | | New Orleans | LA | 2 / 2 | 0 | 1 | 1 | | New York, Northern New Jersey, Southwestern Connecticut | NY | 11 / 9 | 1 | 2 | 1 | | Oklahoma City | OK | 1 / 1 | 0 | 0 | 0 | | Omaha | NE | 1 / 1 | 0 | 1 | 0 | | Orlando | FL | 1 / 1 | 0 | 0 | 0 | | Philadelphia, Wilmington, Trenton | PA | 6 / 6 | 0 | 0 | 0 | | Phoenix | AZ | 1 / 1 | 0 | 1 | 1 | | Pittsburgh, Beaver Valley | PA | 2 / 2 | 0 | 0 | 0 | | Portland, Vancouver | OR | 1 / 1 | 0 | 0 | 0 | | Providence, Pawtucket, Fall River | RI | 1 / 1 | 0 | 1 | 1 | | Provo - Orem | UT | 1 / 1 | 0 | 0 | 0 | | Raleigh-Durham | NC | 1 / 1 | 0 | 0 | 0 | | Richmond, Petersburg | VA | 1 / 1 | 0 | 0 | 0 | | Roanoke | VA | 1 / 1 | 0 | 0 | 0 | | Rochester | NY | 1 / 1 | 0 | 0 | 0 | | Sacramento | CA | 1 / 0 | 0 | 0 | 0 | | Salinas | CA | 1 / 1 | 0 | 0 | 0 | | Salt Lake City, Ogden | UT | 2 / 2 | 0 | 2 | 2 | | San Antonio | TX | 1 / 1 | 0 | 1 | 1 | | San Diego | CA | 1 / 1 | 0 | 1 | 1 | | San Francisco, Oakland, San Jose | CA | 1 / 1 | 0 | 1 | 1 | | San Juan | PR | 1 / 1 | 0 | 0 | 0 | | San Luis Obispo | CA | 1 / 1 | 0 | 0 | 0 | | Santa Barbara | CA | 1 / 1 | 0 | 0 | 0 | | Sarasota-Bradenton | FL | 1 / 1 | 0 | 0 | 0 | | Scranton, Wilkes-Barre | PA | 2 / 2 | 0 | 0 | 0 | | Seattle, Tacoma | WA | 2 / 2 | 0 | 2 | 1 | | Spokane | WA | 1 / 1 | 0 | 0 | 0 | | Springfield | MA | 1 / 1 | 0 | 0 | 0 | | Springfield(MO) | MO | 1 / 1 | 0 | 0 | 0 | | St. Louis | MO | 2 / 2 | 0 | 0 | 0 | | Stockton | CA | 1 / 1 | 0 | 0 | 0 | | Syracuse | NY | 2 / 2 | 0 | 1 | 0 | | Tampa, St. Petersburg, Clearwater | FL | 1 / 1 | 0 | 0 | 0 | | Toledo | OH | 2 / 2 | 0 | 0 | 0 | | Tucson | AZ | 1 / 1 | 0 | 1 | 1 | | Tulsa | OK | 1 / 1 | 0 | 0 | 0 | | Washington | DC | 3 / 3 | 0 | 0 | 0 | | West Palm Beach, Boca Raton, Delray | FL | 1 / 1 | 0 | 0 | 0 | | Wichita | KS | 1 / 1 | 0 | 1 | 0 | | Youngstown, Warren | OH | 1 / 1 | 0 | 0 | 0 | | 106 Metropolitan Areas |
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