The Zone Map delineating the above Districts and the Schedule of Requirements summarizing the required conditions for each District printed thereon are hereby declared to be a part of this chapter. The Zone District boundary lines are intended generally to follow street center lines, existing lot lines, center lines of railroad rights-of-way, and the like, as indicated on the Zone Map. Where a Zone District boundary line does not coincide with any such line as above set forth, its location or relation to another boundary line is indicated on the Zone Map by means of figures expressing distance in feet from a street sideline or other boundary line. In cases of uncertainty or disagreement as to the true location of any Zone District boundary line, the determination thereof shall lie with the Board of Adjustment, in accordance with N.J.S.A. 40:55-39(b).