Metro lines with a single digit number travel through the radial main network, as a rule, the line number corresponds to that of 1993, so the lines became 2, 3, and 4 into M4, the 5 into M5 and so on. In addition, the two Pankow lines, 52 and 53 were included as line M1 in the main scheme. The supplementary lines of the radials continue to carry 10 numbers, unless they have been merged into the amplifier of the metro line. Metro lines of the ring and tangential network received the numbers in the 10 range, whose supplementary lines retain the 20 range. An example is the retrofitted line, route 37, which together with the lines of M17 and 27 runs a common route. Of the 50 routes remained, the only one of the 50, the 60 lines were remained untouched by these measures.