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| | NationMaster - Encyclopedia: Massachusetts Route 1A (Site not responding. Last check: 2007-10-31) |
 | | The highway starts from US 1 (which is on the Central Artery with I-93 and Route 3) at the Government Center/Logan Airport interchange. |
 | | It passes through the Callahan Tunnel (outbound/northbound, no toll) and Sumner Tunnel (inbound/southbound, toll), becoming the East Boston Expressway past Logan Airport The Central Artery, officially the John F. Fitzgerald Expressway, is a section of freeway in downtown Boston, Massachusetts, designated as Interstate 93, U.S. Highway 1 and Route 3. |
 | | FAA diagram of Logan Airport Edward Lawrence Logan International Airport, in the East Boston neighborhood of Boston, Massachusetts, is one of the 20 busiest airports in the U.S., with 22 million passengers a year using its 43 airlines. |
| www.nationmaster.com /encyclopedia/Massachusetts-Route-1A (892 words) |
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