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  • Posted in: Member Forum

    We are looking forward to the AREMA 2022 Communications & Signals Symposium , which begins this Sunday, May 15, and is in partnership with the RSSI C&S Exhibition . We especially welcome this long awaited, in-person opportunity to interact and ...

  • Posted in: Member Forum

    Joel: Los Angeles has several street running sections that have used traffic signal interconnection coupled with sensors between the rails to detect the approach of a train and special traffic signal heads displaying semaphore style lights that are followed ...

  • Posted in: Member Forum

    We have come a long way in determining allowable speeds for turnouts. For the straight route, track speed is typically allowed. The traditional method of determining speed on the diverging route uses the "cant deficiency" rules that also apply to all ...

  • Posted in: Member Forum

    If you need a few more miles per hour, you could use tangential design which in theory has a zero vertex angle. One switch point is curved and the spiral begins at the point of switch (theoretically about a foot ahead of the PS). You could even go further ...

  • Posted in: Member Forum

    Mr. Tardiff, You can refer to AREMA Portfolio of Trackwork Plans, Plan Number 920. ------------------------------ Timothy Martin Civil Engineer David Evans and Associates Portland OR ------------------------------

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