Anti-Phone Glass For Trains

A UK railway rolling stock company, Adtranz, has been working with Pilkington to develop a glass capable of blocking mobile phone signals. Adtranz is carrying out trials of new rolling stock fitted with the special glass and is due to deliver seven new carriages to a regional railway company in central England sometime this year. The railway company will then ban mobile phone calls from one in three carriages on its trains in response to a growing number of passenger complaints about the annoyance caused by mobile phones. The new glass is coated with a transparent mesh of doped tin oxide which acts as a Faraday cage and prevents the passage of the high-frequency signals used by mobile phones.