The New York City MTA IT department hosted an “executive demonstration” to show the installation of ultra-wideband sensors on the 42nd St shuttle track “via a robotic arm”.
As a refresher, ultra-wideband, or UWB, is a form of wireless communication that may be applicable to communications-based train control, or CBTC, an upgraded signaling system currently used on the L and 7. Governor Cuomo appears to be of the mistaken belief that UWB is different from CBTC. It is not, nor is it in use in any train system of any kind anywhere in the world. But UWB, if proven viable, could make installing CBTC quicker and cheaper.