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Mineral trioxide aggregate (MTA) is an alkaline, cementitious dental repair material. MTA is used for creating apical plugs during apexification, repairing root perforations during root canal therapy, and treating internal root resorption.
The Triborough Bridge and Tunnel Authority (TBTA), doing business as MTA Bridges and Tunnels, is an affiliate agency of the Metropolitan Transportation Authority that operates seven toll bridges and two tunnels in New York City.
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NEW YORK — Out with the old, in with the OMNY. That's the name the MTA has given the new tap-to-pay fare system that will eventually replace the MetroCard — and straphangers will give it a ...
The Maryland Transit Administration (MTA) is a state-operated mass transit administration in Maryland, and is part of the Maryland Department of Transportation.The MTA operates a comprehensive transit system throughout the Washington-Baltimore metropolitan area.
The New York City Subway system has, for the most part, used block signaling since its 1904 opening. As of May 2014, the system consists of about 14,850 signal blocks, 3,538 mainline switches, 183 major track junctions, 10,104 automatic train stops, and 339,191 signal relays. [2]
Since 2009, the MTA has made several upgrades and expansions to its fleet and facilities. The Flint MTA received a $7.985 million grant from the Federal Transit Administration that was funded by the American Recovery and Reinvestment Act of 2009 for new Project 25 digital radio dispatch equipment and mobile data terminals, new intelligent transportation system software and equipment ...