Northeast Senators Introduce Bill to Implement PTC by 2018 April 22nd, 2015 U.S. Senators Charles Schumer (D-N.Y.) and Richard Blumenthal (D-Conn.) have introduced the Positive Train Control (PTC) Safety Act,
MartinEnviro is awarded work for cutting-edge technology phase of communication systems. The Distributed Antenna System (DAS) projects are located in California and are some of the first in the country.