gptkbp:instance_of
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gptkb:infrastructure
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gptkbp:academic_programs
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gptkb:Massachusetts_Turnpike_Authority
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gptkbp:completed
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gptkb:2007
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gptkbp:controversy
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cost overruns
delays
safety issues
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gptkbp:cultural_impact
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community events
public art installations
increased tourism
improved city aesthetics
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gptkbp:depth
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90 feet
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gptkbp:design
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gptkb:Bechtel/_Parsons_Brinckerhoff
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gptkbp:environmental_impact
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reduced air pollution
increased green space
improved water drainage
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gptkbp:features
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gptkb:bridge
gptkb:parks
tunnels
elevated highways
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gptkbp:funding
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gptkb:local_government
gptkb:state_government
gptkb:federal_government
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gptkbp:historical_significance
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engineering challenges
symbol of urban renewal
largest highway project in U. S. history
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https://www.w3.org/2000/01/rdf-schema#label
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the Big Dig
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gptkbp:impact
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gptkb:public_transportation
gptkb:urban_development
environmental concerns
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gptkbp:legacy
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impact on urban planning
model for future infrastructure projects
lessons in project management
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gptkbp:length
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3.5 miles
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gptkbp:location
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gptkb:Boston,_Massachusetts
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gptkbp:notable_feature
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gptkb:Zakim_Bridge
gptkb:Rose_Kennedy_Greenway
gptkb:Central_Artery_Tunnel
North End Park
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gptkbp:passenger_traffic
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200,000 vehicles per day
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gptkbp:price
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$22 billion
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gptkbp:project
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gptkb:Green_Line_extension
gptkb:North-South_Rail_Link
gptkb:Silver_Line_bus_rapid_transit
South Station expansion
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gptkbp:public_perception
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mixed reviews
controversial legacy
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gptkbp:purpose
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reduce traffic congestion
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gptkbp:safety_features
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emergency exits
ventilation systems
traffic monitoring systems
fire suppression systems
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gptkbp:started_in
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gptkb:1991
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gptkbp:bfsParent
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gptkb:I-93_tunnel
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gptkbp:bfsLayer
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6
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