§ 221. Purpose. This article shall continue the implementation of
section fourteen of article seven of the constitution and shall
supersede chapter six hundred seventy-seven and chapter six hundred
seventy-eight of the laws of nineteen hundred twenty-eight, and all acts
supplementary thereto and amendatory thereof, known as the "grade
crossing elimination act," and chapter two hundred eighty-nine of the
laws of nineteen hundred thirty-nine, and all acts supplementary thereto
and amendatory thereof, known as the "grade crossing elimination act of
nineteen hundred thirty-nine."