Apparatus for measuring a railroad track parameter

An apparatus for measuring railroad track parameters is provided to simply measure various railroad track parameters such as a curve radius, a balanced speed, and a gantry amount, by using 4-direction accelerometers and a speed sensor. An apparatus for measuring railroad track parameters includes a sensor unit(320), a signal conditioner(310), and a data processor(300). The sensor unit measures a speed and an acceleration of a railroad car. The signal conditioner converts sensing signals from the railroad car to a digital signal and processes the digital signal. The data processor calculates a railroad design parameter and a gradation of the railroad based on the processed result from the signal conditioner and train weight data. The railroad design parameter includes a curve radius, a balanced speed, and a gantry amount.