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Posts Tagged ‘MA’

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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Massachusetts Transportation by the Numbers

Wednesday, October 29th, 2014
Cost of Congestion in MA

TRIPExecutive SummaryMassachusetts’ extensive system of roads, bridges, highways and public transit provides the state’s residents, visitors and businesses with a high level of mobility. This transportation  system, which also includes pedestrian and bicycle facilities, forms the backbone that supports  the state’s economy. Massachusetts’ surface transportation system enables the state’s residents  and visitors to travel to work […]

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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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Dollars Well Spent: Solar Energy in Massachusetts

Tuesday, August 26th, 2014
Dollars Well Spent: Solar Energy in Massachusetts

Celebrating the summer solstice, the longest day of the year, Undersecretary for Energy Mark Sylvia (then Department of Energy Resources (DOER) Commissioner) and Department of Environmental Protection (DEP) Commissioner David Cash toured six solar investments across the Commonwealth from sun up to sun down. The tour made stops in Chatham, Barnstable, Pembroke, Worcester, Easthampton and Pittsfield, touting the installation of more than 10 megawatts (MW) of solar power on former landfills, and at wastewater treatment plants and drinking water facilities in those communities. The state’s comprehensive solar policies have led to growing deployment of solar power at homes, businesses, schools, parking lots and elsewhere. There is at least one solar installation in 350 of the 351 communities across the Commonwealth, totaling more than 615 MW, which is enough electricity to power nearly 94,000 homes.

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Interactive Map: Roadwork in Massachusetts

Wednesday, June 11th, 2014
massDOT Roadwork map

A new interactive map from massDOT pinpoints traffic incidents and scheduled road work throughout the state of Massachusetts. In addition to its useful information, another fascinating aspect of the roadwork map is the sheer volume of projects it shows taking place simultaneously. With everything from bridge inspection to highway paving on the daily docket, it’s clear why road maintenance is more than a full-time job.

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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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