Introduce or expand transportation options that are available to the public and run on a scheduled timetable (e.g., buses, trains, ferries, rapid transit, etc.)
Prevent radon from entering occupied buildings and reduce existing indoor air radon levels via soil depressurization, home or room pressurization, heat recovery ventilation, etc.
Establish bioretention systems (e.g., rain gardens, bioretention cells, green roofs, planter boxes, bioswales, etc.) to make city landscapes more permeable to help control stormwater
Provide incentives to trade in old cars or light duty trucks with low fuel efficiency and high emissions and buy new vehicles with higher efficiency and lower emissions; also called scrappage or vehicle early retirement programs