Most New York City subways operate with a Fixed Block Signal
In that case the train protection can be realised by installing inductive balises which act in accordance with the aspect of the block signal
on the equipment installed onboard train, which allows, if necessary, train velocity control or its automatic stopping if the train running method endangers the traffic safety.
The pair swoop on the luxury car with one holding a backpack by the front door to block signals
from the owner's keyfob.
It also has the capability to block signals
transmitted by contactless cards, modern passports and more importantly during this operation; keyless car fobs, preventing would-be thieves and identity fraudsters.
Thieves can lie in wait and block signals
as owners walk away from their car.
Botox, a toxin, is produced by the bacterium Clostridium Botulinum, and it helps block signals
from the nerves to the muscles, which when injected cannot contract.
It's alleged that the 18-yearold, who was arrested near Touchwood shopping centre on Sunday afternoon, stuffed coats, dresses, tops and perfume into modified bags designed to block signals
from store security alarms.
No one is allowed to block signals
, that is clear".