TY - RPRT TI - Enhanced Communication Network Solution for Positive Train Control Implementation AU - Fatehi, M. T. AU - Simon, J. AU - Chang, W. AU - Chow, E. T. AU - Burleigh, S. C. PY - 2011 UR - https://ntrs.nasa.gov/citations/20120009710 ID - 20120009710 ER -