no matter how many times i've crossed these tracks nor how old i might now be i will still feel that childlike excitement building within as i look cautiously left then right and left then right again just to be sure before stepping across that first metallic line a symbol of both danger and adventure rechecking the signals as i cross the second i have never understood what those lights tell of the next train's progress red yellow green single or double flashing or constant no matter how clear the tracks appear the uncertainty of what might soon be unstoppably approaching always sets me on edge momentarily apprehensive yet exhilarated by each rushed step