Application of Tie Plate:
Tie plates protect the wooden crosstie from damage under rails and distribute wheel loads over a larger area. They also hold the rail at the correct gauge, tilt the rail slightly inward to help counter the outward lateral weight of wheel loads, and provide more desirable positioning of the wheel bearing area on the rail head.
There are three primary functions of any rail fastening system. These functions are as follows:
1.Transfers the wave motion of the rail (which precedes and follows a wheel) to the tie, which will cushion the shock
2.Provides an anchoring force to help restrain longitudinal movement of the rail
3.Holds the rail alignment, while still providing a slight vertical flexibility