A railroad Quiet Zone is defined by the Federal Railroad Administration as a section of railroad where a train has been granted relief from the Federal regulations for horn use.
No city or state law or ordinance can preempt the Federal law requiring that a train use its horn at a railroad crossing. If a city or state agency want to establish a Quiet Zone, Federal law requires that upgrades or changes are made so that lack of the horn does not make the crossing less safe than is determined with horn use.
The Federal regulations that describe mandatory use of train horns and identify how to develop a Quiet Zone are covered in Title 49 of the Code of Federal Regulations.
By itself, a railroad is not allowed to establish a quiet zone under Federal regulations. The process begins with a local agency, usually city or state, identifying a section of a railroad that they wish to establish a Quiet Zone, where a train will no longer be required to use its horn at grade crossings as presently required under Federal law. A study and a proposal has to be performed to identify a baseline of safety for the area, whihc must include each railroad crossing in the area - the second part of this is identifying what safety features will be made or added so that the area will still keep the same level of safety without use of a train horn as with a train horn. The Federal Railroad Administration oversees this and must approve the Quiet Zone application. The community must identify Supplemental Safety Measures (SSM) or Alternative Safety Measures (ASM) to enhance the safety. The most common SSM is installation of "four quad crossings", but this can also be the most expensive process. In some cases, traffic modifications by a road closure, one ways streets, and other enhancements can result in less impact to the communicaty and approval of a Quiet Zone.
This is a quiet zone.
Star Tonight - 1955 Zone of Quiet 1-5 was released on: USA: 3 March 1955
In a "Quiet" Hospital Zone.
I happen to know the answer as I am a railroad buff. Railroad scheduling in the four time zones.
Place in which device is put under test.
America Declassified - 2013 JFK50th Toxic Waste Scare Quiet Zone 1-3 was released on: USA: 3 November 2013
No; only from the Pokewalker Course, Quiet Cave.
"The Quite Zone of an anechoic chamber is a defined volume within the chamber where a Device Under Test (DUT) is to be placed for evaluation. Quiet Zone Probing is accomplished by moving a probe antenna through the Quiet Zone to determine the level of extraneous signals entering the volume." (from Sirles, C.W., et al., "Anechoic Chamber Performance Characterization Using Spherical Near-Field Imaging Techniques") In other words, a quite zone is a specific volume inside the anechoic chamber, wherein the level of RF power does not exceed a certain limit. The "quiteness" of the zone is a function of signal frequency, i.e. different frequencies will correspond to different RF levels within the quite zone volume.
the difficulty of setting railroad schedules over long distances
Willoughby- He thinks it is an obsolete town- it turns out to be the name of a Funeral Parlor- is seen on the side of a Hearse that picks up his body! typical of the morbid humor occasionally indulged in in Twilight Zone. I recall this episode as I am a railroad buff, and it did involve the Railroad.
Either: a) judicial actions against the railroad b) military confiscation of lands for forts c) state taxation of railroad waxed fat d) sale if federal land along the right-of-way e) homesteading along the railroad