|Health Factors:||Air & Water Quality|
|Decision Makers:||Educators Employers & Businesses Local Government State Government Federal Government Nonprofit Leaders|
|Population Reach:||100% of WI's population|
|Impact on Disparities:|
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Anti-idling initiatives include organizational policies and awareness campaigns to minimize the time that drivers idle the engines of their personal or fleet vehicles. These efforts are often implemented in support of federal, state, or local anti-idling laws but can also be standalone efforts by neighborhoods or near schools. Anti-idling campaigns typically include education efforts, anti-idling signs in loading/unloading zones, and pledges to change behavior. Initiatives can promote use of idle reduction technologies for buses or trucks such as auxiliary power units (APUs), automatic shutdown/start-up devices, or battery-powered air conditioning (Ziring 2010). When idling, gasoline- and diesel-powered engines consume fuel and produce greenhouse gas emissions and hydrocarbons that can react to form smog and emit pollutants such as nitrogen oxides (NOx), particulate matter, and toxic air pollutants that negatively affect cardiovascular and respiratory health for adults, especially children, and contribute to climate change (NH DES-Motor vehicles, CDC-Clean diesel, US EPA-Idle free schools).
There is some evidence that anti-idling initiatives reduce vehicle idling time and emissions, and improve air quality, especially near schools with high levels of traffic (Ryan 2013, Kim 2014, Xu 2013a, Anderson 2009a). Vehicles that are turned off do not use fuel or emit the air pollutants and greenhouse gases emitted when idling. Several idle reduction technologies have been shown to significantly reduce fuel use and emissions of pollutants such as NOx, PM, and CO2 (Ziring 2010, US DOE-AFDC research, NREL-Proc 2003). However, additional evidence is needed to confirm the effects of anti-idling initiatives on idling levels.
An evaluation of a Georgia school district’s anti-idling program that used an on-board idle detection and warning system suggests such programs can reduce idle times, save fuel, and reduce emissions (Xu 2013a). A Cincinnati-based effort indicates that anti-idling campaigns near schools with many buses and high levels of traffic can also improve indoor air quality by reducing traffic aerosols (Kim 2014). Surveys suggest that community and driver knowledge of the health benefits of reducing idling increase with anti-idling education efforts (Eghbalnia 2013).
Research suggests that successful anti-idling policies establish a baseline, educate drivers, gather and analyze data, set goals, have a written policy, and measure and report success (Anderson 2009a). Pairing idle reduction technologies for buses and trucks with anti-idling policies can increase reductions in emissions (Ziring 2010).
Idle reduction initiatives are a low cost way to reduce idling and emissions and save fuel (Anderson 2009a). Several idle reduction technologies have been shown to be cost-effective with payback times of half a year or less. Installing an auxiliary power unit (APU) costs approximately $8,000 per bus with an annual savings of $12,400-$14,700, for example, and automatic shutdown/start-up devices cost $1,200 per bus, with an annual savings of $11,700-$14,400. Battery-powered air conditioning and diesel-fired heaters cost $7,500 per bus, with an annual savings of $13,800-$14,700 (Ziring 2010).
As of 2016, 27 states and Washington DC have laws or regulations that address idling; 32 states have state-wide incentives (US DOE-AFDC laws and incentives). Philadelphia’s Idle Free Philly campaign, which also uses a mobile app and website to allow reports of idling vehicles and support enforcement, is an example of a campaign to support awareness of state and municipal law (CAC-Idle free Philly). New Jersey’s state anti-idling law applies to heavy duty trucks and passenger vehicles, and is supported by a Stop the Soot campaign that encourages pledges to reduce school bus idling (NJ DEP-Idling restrictions, NJ DEP-School bus).
Many municipalities support anti-idling efforts; for example, San Antonio passed an anti-idling ordinance for heavy duty trucks with a 5 minute idling limit, effective in January 2017 (San Antonio-Anti-idling), and Park City, Utah prohibits vehicle idling for more than 1 minute (Park City-Anti-idling). Municipalities and business owners can install electrified parking spaces at truck stops, rest areas, and distribution centers to provide power, heating, and cooling to the cab without idling; however, these efforts are not yet widespread (Trucking Efficiency).
Several federal programs support reductions in emissions through idle reduction efforts, such as the Congestion Mitigation and Air Quality (CMAQ) Improvement Program, Clean Cities, Clean School Bus USA, and the SmartWay Transport Partnership. The federal government also offers an idle reduction equipment excise tax exemption and an idle reduction technology weight exemption. The federal weight exemption allows states to permit heavy duty vehicles equipped with idle reduction technology to exceed the maximum gross vehicle weight limit and axle weight limit to compensate for the additional weight of idle reduction technology without affecting state highway funding eligibility (US DOE-AFDC Federal laws).
Wisconsin law includes an idle reduction weight exemption that allows any vehicle or combination of vehicles equipped with fully functional idle reduction technology to exceed the state's gross and axle weight limits by up to 400 pounds (US DOE-AFDC laws and incentives).
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