Elements of the scheme include the clocking on and off GPS system STAR, covert bus monitors aged 14 and above called Bus Angels, and training aimed at helping bus drivers cope with anti-social behaviour.

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The NTSB, which often investigates plane and bus crashes, also monitors pipeline accidents.

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Sharp Corp. too included a DVI connector on a new 18 inch screen and also built a USB (universal serial bus) hub into new 18- and 20 inch monitors with the idea of increasing convenience of users.

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