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Conditions
Asterisk (*) denotes significant traffic delays on that route.

BOSTON

Central Artery
Charles River roads
Sumner/Callahan

MAJOR HIGHWAYS

I-90 (Mass Pike)
Auburn to Logan

I-93
North of Boston
Central Artery
Southeast Expwy.

I-95
North of Rte. 128
South of Rte. 128

I-495
North of Mass Pike
South of Mass Pike

Rte. 1
North of Boston
South of Boston

Rte. 2
I-495 to Cambridge

Rte. 3
N.H. to Rte. 128
Braintree to Cape

Rte. 9
I-495 to Boston

Rte. 24
Randolph-Raynham

Rte. 128
North of Mass Pike
South of Mass Pike

CAPE COD

Bridges and Rte. 6
Ferries

MBTA

Subway
Commuter rail
Parking lots

Getting out the news

Graphic by Ed Wiederer, Globe Staff

The Big Dig may be using tons of concrete, asphalt, and steel to build Boston�s new highway, but there is also something else going on. Fiber-optic cable, antennas, cameras, and myriad other electronic devices are being installed to make up the highway�s "central nervous system." A look at how some of these features will work together to keep the roads safer, cleaner, and more efficient.



Source: Central Artery/Tunnel Project



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