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Cool Pavement Roads in Sydney, Australia

June 2014

The City of Sydney Australia is exploring the use of “cool pavements” (i. e. , lighter colored pavement) on roads to reduce the urban heat island effect in the city.  The City is evaluating the effectiveness of cool pavements through a demonstration project in which they propose to repave 600 sq. meters of a street in Chippendale, a suburb of Sydney, with lighter colored pavements. Cool pavements are one method of reducing higher temperatures in urban environments because lighter colored pavements absorb less heat energy.

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Caltrans Water Conservation Measures in Highway Landscaping

2014

The California Department of Transportation (Caltrans) began using a variety of new materials and techniques to address drought conditions by reducing or eliminating water use on roadside landscaping following the onset of multi-year severe drought conditions in 2011.   New roadside landscaping projects began utilizing recycled water, native grasses and plants that require little or no watering, innovative water collection techniques, and smart irrigation controls. Caltrans’ water conservation efforts are designed to help meet or exceed state water use reduction goals and address growing water scarcity.

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Alaska Repaving Roads Using Polystyrene Insulation

2013

The Alaska Department of Transportation & Public Facilities (ADOT&PF) is rebuilding portions of roads in the northern regions of the state using a thick layer of insulation under the pavement in order to help prevent the thaw of underlying permafrost caused by heat transfer. Thawing permafrost, exacerbated by increasing average annual temperatures and heat transfer from paved roads, has caused structural instability to roadway infrastructure and buildings in Alaska. Portions of Goldstream Road near Fairbanks and the Dalton Highway further north are both being replaced with insulation board to ensure thermal stability of the roads with increasing temperatures under climate change scenarios.

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Sustainable Working Waterfronts Toolkit and Final Report

March 2013

The Sustainable Working Waterfronts Toolkit is a web-based portal to many resources for decision and policy makers, waterfront landowners, and waterfront users. The Toolkit contains information about the historical and current use of waterfront space; the economic value of working waterfronts; and legal, policy, and financing tools that can be used to preserve, enhance, and protect these valuable areas. The Toolkit also features detailed case studies of successful working waterfronts initiatives from communities around the country.

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Clean Rivers, Green District Agreement

December 2012

In 2012, the U. S. Environmental Protection Agency (EPA), the District of Columbia Water and Sewer Authority (DC Water), and the Government of the District of Columbia (Washington D. C. ) joined in a partnership agreement to to advance green infrastructure in D. C. The “Clean Rivers, Green District” agreement outlines the collaborative steps to support green infrastructure to achieve sustainable stormwater management, more livable communities, and other environmental improvements in the District.

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New Zealand Transport Agency: SH16 Causeway Upgrade Project

The New Zealand Transport Agency (NZTA) is upgrading and elevating the State Highway 16 (SH16) Causeway near Auckland to reduce roadway flooding during extreme tidal conditions under projected future sea-level rise. The SH16 Causeway Upgrade Project involves raising 4. 8 kilometers (3 miles) of both roadway and bike path along SH16, also known as the Northwestern Motorway, by 1. 5 meters (5 feet). For this project, NZTA utilized sea-level rise planning recommendations produced by the NZ Ministry for the Environment.

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Norwegian Public Roads Administration's Climate and Transport R&D Project

May 2013

Beginning in 2007, the Norwegian Public Roads Administration (NPRA) conducted a major research and development project to evaluate the impacts of climate change on Norwegian roads and recommend adaptation measures to be incorporated into road design, construction, operation, and maintenance and help ensure safety and accessibility of roads in a changing climate. The project, entitled “Climate and Transport,” has resulted in revised guidelines and specifications, to better plan and design for increasing risk related to flooding and sea-level rise.

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Indicators to Measure Progress in Promoting Sustainable Communities

June 2014

In support of the Transportation and Climate Initiative (TCI) Sustainable Communities program, the Georgetown Climate Center and Rutgers University's Bloustein School of Planning and Public Policy released research papers examining 11 potential indicators that could help measure progress and demonstrate the benefits of sustainable communities.  

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Great Lakes Green Streets Guidebook

August 2013

This guidebook, published by the Southeast Michigan Council of Governments (SEMCOG), provides examples of roadways projects within the Great Lakes Watershed that utilize green infrastructure methods to improve water quality and reduce stormwater runoff. Developed as a complement to the Low Impact Development Manual for Michigan, the guidebook offers support to municipalities interested in planning, designing, and constructing green streets.

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Boston Architectural College Green Alley Initiative

October 2013

The Boston Architectural College (BAC) installed a green alley demonstration project on its campus located in the Back Bay area of Boston along the Charles River.   The green alley used permeable pavement to allow stormwater to percolate through the road bed to recharge groundwater and filter pollutants.   The project was designed to be replicable and to help with public education on the benefits and design of green infrastructure. The purpose of the green alley is to reduce polluted runoff by filtering and redirecting rainfall to the groundwater table.

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