At Ipswich, Mass, Boston and Maine has installed flashing light signals and automatic gates at three highway crossings, replacing watchmen previously in service; feature of project was conversion if 14.5 mi of double track to single track centralized traffic control with one passing siding.
B and M takes up track and installs traffic control, gates and flashers
Ry Signaling Communications
Railway Signaling and Communications ; 52 , n 5
1959
4 pages
Article (Journal)
English
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