Federal transportation safety policy requires the sounding of train horns in advance of public grade crossings. Horn blasts have a volume level in the range of 96 to 110 dbs
In 2006, a railroad crossing "quiet zone" rule was established. Local communities can enact a “quiet zone” if certain safety measures are provided, such as median islands at railroad crossings or 4-quadrant gates.
In 2007, Fremont commissioned a feasibility study on establishing local quiet zones and determining what safety measures should be added at each crossing.
The City has established quiet zones at the following locations: - Stevenson Boulevard
The City has identified four quiet zone projects. These are listed in the following priority order based on the project cost, the number of trains passing through the crossing, and the area of residential communities affected by the train horns.