Energy & Environment (53 unique benefit summaries found)

Electronic credentialing allowed trucks to be placed into service an average of 3.5 days sooner than paper-based systems.(2 October 2007)

Electronic screening produced operating cost savings per bypass of $8.68 for interstate motor carriers.(2 October 2007)

A study of the congestion charging scheme in central London found benefits exceeding costs by a ratio of 1.5:1 for a £5 charge and 1.7:1 for an £8 charge.(July 2007)

Congestion charging in London resulted in pollutant emission reductions: 8 percent for oxides of nitrogen, 7 percent for airborne particulate matter, and 16 percent for carbon dioxide.(July 2007)

In Georgia, the NaviGAtor incident management program reduced annual fuel consumption by 6.83 million gallons, and contributed to decreased emissions: 2,457 tons less Carbon monoxide, 186 tons less hydrocarbons, and 262 tons less Nitrous oxides.(August 2006)

In Monroe County, New York, the Camera Deployment and Intelligent Transportation Systems (ITS) Integration project reduced incident validation times by 50 to 80 percent saving between 5 and 12 minutes per incident.(August 2006)

Congestion mitigating benefits of cordon charging in London enabled taxi drivers to cover more miles per hour, service more riders, and decrease operating costs per passenger-mile.(January 2006)

In Florida, the Road Ranger Service Patrol program saved over 1.7 million gallons of fuel by eliminating over one million vehicle-hours of delay in 2004.(November 2005)

Evaluation data show that anti-icing and pre-wetting strategies can reduce sanding applications by 20 to 30 percent, decrease chemical applications by 10 percent, and reduce chloride and sediment runoff in local waterways.(19 August 2005.)

In Colorado, an automated commercial vehicle pre-screening system installed at three ports of entry check stations saved 48,200 gallons of fuel per month.(12/29/2004)

In Oakland County, Michigan retiming 640 traffic signals during a two-phase project resulted in Carbon monoxide reductions of 1.7 and 2.5 percent, Nitrogen oxide reductions of 1.9 and 3.5 percent, and hydrocarbon reductions of 2.7 and 4.2 percent.(November/December 2004)

In Chicago, a feasibility study indicated that automated truck-way technologies (automatic truck steering, speed, and platoon spacing control) would save travel time and reduce fuel consumption.(8/19/2004)

Signal retiming projects in several U.S. and Canadian cities reduced fuel consumption by 2 to 9 percent. (April 2004)

In 2002, the Maryland CHART highway incident management program reduced delay by about 30 million vehicle hours and saved about 5 million gallons of fuel.(November 2003)

Freight Information Real-Time System for Transport (FIRST): Evaluation Final Report(5 October 2003)

By implementing coordinated signal timing on the arterial network in Syracuse, New York total fuel consumption was reduced by 9 to 13 percent, average fuel consumption declined by 7 to 14 percent, average vehicle emissions decreased by 9 to 13 percent.(September 2003)

A study of the Coordinated Highways Action Response Team in Maryland found that the system reduced incident duration and saved approximately 4.1 million gallons of fuel in 2000.(14-17 October 2002)

Simulation of a transit signal priority system in Helsinki, Finland indicated that fuel consumption decreased by 3.6 percent, Nitrogen oxides were reduced by 4.9 percent, Carbon monoxide decreased by 1.8 percent, hydrocarbons declined by 1.2 percent, and particulate matter decreased by 1.0 percent.(13-17 January 2002.)

A simulation study in Minneapolis-St. Paul estimated that ramp metering saved 2 to 55 percent of the fuel expended at each ramp.( 13-17 January 2002)

During the A.M. peak period, transit signal priority on an arterial route in Arlington, Virginia could increase carbon monoxide emissions by 5.6 percent and decrease nitrogen emissions by 1.7 percent.(13-17 January 2002)

An evaluation of electronic toll collection systems at three major toll plazas outside Baltimore, Maryland indicated these systems reduced environmentally harmful emissions by 16 to 63 percent. (January 2002)

The E-ZPass electronic toll collection system on the New Jersey Turnpike reduced delay for all vehicles by 85 percent saving an estimated 1.2 million gallons of fuel each year and eliminating approximately 0.35 tons of VOC and 0.056 tons NOx per weekday.(August 2001)

Modeling found emissions reductions of 3.7 to 4.6 percent due to an advanced transportation management and traveler information system serving northern Kentucky and Cincinnati.(4-7 June 2001)

Winter maintenance personnel indicated that road weather information systems decrease salt usage, and anti-icing techniques limit damage to roadside vegetation, groundwater, and air quality (where abrasives are applied). (March 2001)

Net annual vehicle emissions increased by 1,160 tons and fuel consumption decreased by 5.5 million gallons when the ramp metering system on Minneapolis-St. Paul freeways was shut down.(February 2001)

Evaluation of the Environmental Effects of Intelligent Cruise Control (ICC) Vehicles(7-11 January 2001)

Optimized signal timing plans, coordinated traffic signal control, and adaptive signal control reduced fuel use by 7.8 percent in California.(7-11 January 2001)

Fuel Consumption Reduction Experienced by Two PROMOTE-CHAUFFEUR Trucks in Electronic Towbar Operation(6-9 November 2000)

Simulation results indicated that vehicle emissions could be reduced by two percent if arterial traffic flow data were included in the traveler information system in Seattle, Washington.(30 May 2000)

In 1997, the Maryland CHART highway incident management program reduced delay by approximately 15.6 million vehicle hours and saved about 5.85 million gallons of fuel.(May 2000)

Evaluation of freeway DMS integrated with incident management in San Antonio, Texas, found fuel consumption reduced by 1.2 percent; integrating the DMS with arterial traffic control systems could save 1.4 percent. (May 2000)

Evaluation of ITS implementation projects in San Antonio, Texas, demonstrated that integrating freeway DMS with incident management systems could reduce fuel consumption by 1.2 percent, and that integrating the DMS with arterial traffic control systems could save 1.4 percent. (May 2000)

In Arizona, traffic signal coordination among two jurisdictions contributed to a 1.6 percent reduction in fuel consumption and a 1.2 increase in carbon monoxide emissions. (April 2000)

Optimizing signal timing at 700 intersections in the Tysons Corner area of Northern Virginia lead to a 9 percent reduction in fuel consumption and a 134,600 kilogram decrease in annual emissions.(March 2000)

In Ames, Iowa, an automated horn warning system that alerted motorists and pedestrians of oncoming trains reduced the area impacted by noise levels greater than 80 dBA from 171 acres to less than 6 acres.(2000)

In Torino, Italy, a simulation study found that an automated speed control system designed to optimize travel speeds between green lights can reduce fuel consumption by 8.3 to 13.8 percent, reduce CO2 emissions by 3.9 to 5.4 percent; reduce hydrocarbon emissions by 4.2 to 6.9 percent, and reduce NOx emissions by 7.9 to 11.3 percent. (8-12 November 1999)

An adaptive signal control system in Toronto, Canada reduced vehicle emissions by three to six percent and lowered fuel consumption by four to seven percent.(8-12 November 1999)

In Michigan, an analysis of adaptive cruise control indicated that the technology reduced fuel consumption and emissions by limiting throttle fluctuations.(October 1999)

A simulation study indicated that integrating traveler information with traffic and incident management systems in Seattle, Washington could reduce emissions by 1 to 3 percent, lower fuel consumption by 0.8 percent, and improve fuel economy by 1.3 percent.(September 1999)

In-vehicle computer visioning technology designed to detect and warn truck drivers of lane departure and driver drowsiness reduced fuel consumption by 15 percent, increased safety, and provided drivers with more comfortable working conditions.(20 July 1999)

In California, electronic toll collection on the Carquinez Bridge decreased annual emissions of Carbon monoxide, Nitrogen oxides, and hydrocarbons.(March 1999)

A transit signal priority system in Eastleigh, England reduced bus fuel consumption by 19 percent and reduced bus emissions by 15 to 30 percent, and increased fuel consumption for other vehicles by 5 percent and increased the emissions of other vehicles up to 11 percent.(1999)

A transit signal priority system in Southampton, England reduced bus fuel consumption by 13 percent, lowered bus emissions by 13 to 25 percent, increased fuel consumption for other vehicles by 6 percent, and increased the emissions of other vehicles up to 9 percent.(1999)

Impacts of Electronic Toll Collection on Vehicle Emissions(11-15 January 1998)

In Scandinavia, vehicles equipped with a GPS-based tracking system and on-board monitoring systems were able to reduce wasted mileage and emissions in southern and central Sweden, and increase freight movement by 15 percent.(May/June 1997)

Evaluation Report for ITS for Voluntary Emission Reduction: An ITS Operational Test for Real-Time Vehicle Emissions Detection(May 1997)

In San Antonio, Texas, a freeway management system reduced fuel consumption by and estimated 2,600 gallons per major incident resulting in an annual savings of 1.65 million dollars.(12-16 January 1997)

An advanced signal system in Richmond, Virginia reduced fuel consumption by 10 to 12 percent and decreased vehicle emissions by 5 to 22 percent.(June 1996)

Innovations in Transportation and Air Quality: Twelve Exemplary Projects(1996)

Fuel consumption fell by 5.7 percent, hydrocarbons declined by 3.7 percent, and carbon monoxide emissions were reduced by 5.0 percent when an adaptive signal control system was implemented in Toronto, Canada.(Spring 1995)

Fuel consumption fell by 13 percent and vehicle emissions were reduced by 14 percent due to a computerized signal control system in Los Angeles, California.(June 1994)

A model indicated that changes in travel behavior due to better traveler information in Boston, Massachusetts would result in a 25 percent reduction in volatile organic compounds, a 1.5 percent decline in nitrous oxide, and a 33 percent decrease in carbon monoxide.(July 1993)

Incident Management Using Total Stations(August 1992)