broad-gauge diesel locomotive
track gauge level gauge
Track Gauge Measurement
engineering district；maintenance of way section；track division；track district；track maintenance division
broad-band metropolitan area network(Broad-Band MAN)
Bayard-Alpert ionization gauge (B-A gauge)
Brown and Sharpe wire gauge {= B&S wire gauge}
jointless line；continuously welded rail track；jointless track
non-NTDS track {dummy track}
replacing and laying track with track panel