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Posts Tagged ‘Boston’

Boston: Methane Emissions from Natural Gas Infrastructure

Thursday, January 29th, 2015
methane fig1

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (PNAS)
Most recent analyses of the environmental impact of natural gas have focused on production, with very sparse information on emissions from distribution and end use. This study quantifies the full seasonal cycle of methane emissions and the fractional contribution of natural gas for the urbanized region centered on Boston. Emissions from natural gas are found to be two to three times larger than predicted by existing inventory methodologies and industry reports. Our findings suggest that natural-gas–consuming regions may be larger sources of methane to the atmosphere than is currently estimated and represent areas of significant resource loss.

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Boston, MA: Tidal Flows and Waste Systems

Monday, December 29th, 2014
Boston, MA: Tidal Flows and Waste Systems

With the separation of Boston’s antiquated Combined Sewage system, the city has paved the way for direct recreation and experience of its greatest asset, Boston harbor. This video proposes a series of elevated and sunken land forms to register the tidal current through the stratified ecologies of the intertidal zone. Within the center of a sloped approach, bowl-like landforms trap the retreating water to create artificial tide pools.

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From Mine to Bridge: Boston’s Steel Infrastructure

Thursday, December 25th, 2014
From Mine to Bridge: Boston’s Steel Infrastructure

Steel is inherent to the Boston waterfront landscape. Transportation infrastructure such as bridges are essential to ease circulation throughout the harbor. These bridges are all made of steel. Where did this steel actually come from? From Mine to Bridge explores the supply chain of steel, from ore mining, to stock piling, manufacturing, and construction.

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Effects of Gas Prices on Transit Ridership

Monday, December 8th, 2014
Figure 3. Boston: Retail Gasoline Price and Unlinked Passenger Trips for Bus

MINETA TRANSPORTATION INSTITUTE
Between 1999 and 2011 consumers in the U.S. experienced an unprecedented increase in and fluctuation of gasoline prices. In July 2008, gasoline prices exceeded $4 per gallon, marking the highest price in real value in U.S. history. In the same year, the nation’s transit ridership reached 10.7 billion trips, the highest level since the Federal- Aid Highway Act of 1956…The rising gasoline prices were considered to have resulted in substantial changes in travel behavior in terms of trip taking, choices of travel destinations, selection of vehicles for higher fuel efficiency, or travel mode. A change in travel mode from driving to transit results in a higher level of transit demand and ridership for transit agencies. With this background, gasoline price increases in the last decade have generated substantial interest in developing a better understanding of how people respond to fluctuations in gasoline prices—particularly with respect to switching modes from driving to public transit—so that transit agencies can better prepare for higher demand for their services during periods of increased gasoline prices.

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Getting to the Route of it: The Role of Governance in Regional Transit

Thursday, October 16th, 2014
The Route of It

ENO CENTER FOR TRANSPORTATION
TRANSITCENTER
…Could regional governance be at the root of problems faced by transit systems in other regions? Some regions have struggled to create universal farecards with updated technology. Other regions have targeted investment to new projects while neglecting the core network. Many regions struggle with coordinating service and interfaces between different operators or transit modes. If regions attempt to solve these problems without resolving their governance issues, they—like Chicago—may be fighting a losing battle.

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Boston, MA: MBTA Rail Cars Get the Deep-Clean Treatment

Thursday, September 18th, 2014
Boston, MA: MBTA Rail Cars Get the Deep-Clean Treatment

Tom Mulligan, General Manager of Keolis Commuter Services, and his cleaning crew take on the massive challenge of deep-cleaning MBTA’s rail fleet.

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Cambridge, MA: Is This Two-Lane Street Wide Enough?

Monday, April 21st, 2014
Cambridge, MA: Is This Two-Lane Street Wide Enough?

A group of recreational cyclists on an urban ride offers an opportunity to explore the capacity limitation of a two-lane arterial street. It is also fair to ask whether the striping of the street with bike lanes benefits primarily bicyclists or motorists, and whether these cyclists understand how to ride as safely and cooperatively as possible on such a street.

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Boston, MA: Extended Hours for the MBTA

Tuesday, April 15th, 2014
Boston, MA: Extended Hours for the MBTA

The MBTA extends service on the weekends until 2:30 a.m. This is a revised video project from Northeastern.

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This Infra Week

Friday, March 7th, 2014

INFRA STORIES YOU SHOULDN’T MISS!
If A Bridge Falls In America…
Think You Could Design a Better Subway System?
Portland Bike Share Faces Delays
And More…

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Boston, MA: Longfellow Bridge Construction Animation

Tuesday, March 26th, 2013

Massachusetts Department of Transportation (MassDOT) contractors will begin the rehabilitation of the historic Longfellow Bridge, which links Boston and Cambridge in the spring of 2013. The project will be completed in six phases.This seven and a half minute animation with music vividly portrays the process of reconstructing the bridge serving vehicles, the MBTA Red Line, […]

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