Railroad Signal Subsystem Sample Clauses

Railroad Signal Subsystem. The minimum simultaneous pre-emption railroad warning time will be set at 55 seconds as indicated in Table 4.1. This is based on previous field observations used to determine an appropriate "track clearance" time for both 47th Street and East Avenue / Eberly Avenue to clear vehicles off the tracks. Table 4.1 shows the minimum railroad warning time required. The active railroad warning devices at both the East Avenue and 47th Street crossings should be designed to activate and deactivate simultaneously. • The railroad pre-emption call shall be released when railroad vehicular gates start to ascend. • The circuit between the railroad and the proposed traffic signal shall be a supervisory design. • The permanent signals will remain interconnected with the railroad warning devices. The traffic control equipment will satisfy the Illinois traffic signal/railroad total system design standards. • Both the East Avenue and 47th Street crossings will be equipped with automatic flashing lights (AFLS), gates, bells, and cantilevers. Overhead traffic pre-signals in the northbound and eastbound directions will be mounted onto the proposed new railroad cantilevers. A pedestrian gate will be provided for the sidewalk crossing on the north side of 47th Street on the west side of the tracks. The proposed 47th Street westbound roadway railroad gate on the east side of the tracks will be placed behind the sidewalk, acting as both a roadway and pedestrian gate, due to limited space for separate gates.
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