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  2. Restrictions on cell phone use while driving in the United ...

    en.wikipedia.org/wiki/Restrictions_on_cell_phone...

    The laws regulating driving (or "distracted driving") may be subject to primary enforcement or secondary enforcement by state, county or local authorities. [1]All state-level cell phone use laws in the United States are of the "primary enforcement" type — meaning an officer may cite a driver for using a hand-held cell phone without any other traffic offense having taken place — except in ...

  3. Mobile phones and driving safety - Wikipedia

    en.wikipedia.org/wiki/Mobile_phones_and_driving...

    In cases of a negative consumption externality such as mobile phone use while driving, the government will usually impose a ban by way of price burden, in this case a fine or ticket, [51] in order to reduce the market quantity to a socially optimal quantity. An illustration of this intervention can be found below (Figure 2) where, in this case ...

  4. Faraday cage - Wikipedia

    en.wikipedia.org/wiki/Faraday_cage

    Some buildings, such as prisons, are constructed as a Faraday cage because they have reasons to block both incoming and outgoing cell phone calls by prisoners. [ 9 ] [ 10 ] The exhibit hall of the Green Bank Observatory is a Faraday cage to prevent interference with the operations of their radio telescopes .

  5. Pennsylvania to ban cell phone use while driving and require ...

    www.aol.com/news/pennsylvania-ban-cell-phone...

    Twenty-eight states already ban cell phone use while driving, according information from the National Conference of State Legislatures. Meanwhile, at least 23 states have laws on collecting data ...

  6. Distracted driving: Why staying safe means staying focused - AOL

    www.aol.com/finance/distracted-driving-why...

    According to the Governors Highway Safety Association, 48 states ban texting while driving, 24 banned all handheld devices while driving and 37 states plus Washington, D.C., ban all cell phone use ...

  7. Mobile phone jammer - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_jammer

    Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...

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