I see, it is not the electric technology. There is something lacking in the standards. The problem stems from all the other parts of the bus. It is in that area that this does not meet the standards. In Europe, you have to break the glass in an emergency. In Canada, the glass must open in response to a blow, but it must not break. As a result of these choices, which each party has made, standards are incompatible.
On May 29th, 2012. See this statement in context.