Forestalling Lever

A lever next to the engineer's position on locomotives used by railroads with Intermittent Inductive Train Control. This control system would cause an automatic brake application if an engineer violated a restrictive signal, and the system required that the engineer operate the lever (ie. forestall) when passing each signal to prevent air brake automatic application which would stop the train. The IITS system included a magnetic shoe signal pickup mechanism, which was placed on the first tender axle on steam locomotives and on the lead axle on diesel locomotives, and wayside inductors in each signal block. This system was in use for many years on the New York Central railroad.