STEPHEN D BODNAR
Vehicle Board in Pittsburgh, PA
License number
Pennsylvania MV244328
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Pittsburgh, PA 15223
Professional information
Railroad Interlocking Control System Having Shared Control Of Bottleneck Areas
US Patent:
5301906, Apr 12, 1994
Filed:
Jun 17, 1992
Appl. No.:
7/900150
Inventors:
Stephen A. Bodnar - Pittsburgh PA
Assignee:
Union Switch & Signal Inc. - Pittsburgh PA
International Classification:
B61L 1700, B61L 2700
US Classification:
246 3
Abstract:
A railroad interlocking control system utilizing a plurality of programmable controllers to regulate flow of train traffic through an interlocking track layout in which a number of track routes converge and overlap into a bottleneck area. Control of switch and signal devices in the bottleneck area is shared by multiple programmable controllers which may reduce redundancy requirements of prior art arrangements.