Berlin-Cb, Leibniz~/Schillerstr: add turn restrictions

Berlin-Cb, div: improve ~6 nodes: crossing=island ⇒ crossing:island=yes

Berlin-Wg, div: improve ~3 nodes: crossing=island ⇒ crossing:island=yes

Berlin-Mitte, div: improve ~4 nodes: crossing=island ⇒ crossing:island=yes

Berlin-Gesundbrunnen, div: improve ~8 nodes: crossing=island ⇒ crossing:island=yes

Berlin-Schbg, div: improve ~1 nodes: crossing=island ⇒ crossing:island=yes

Berlin-Tg, div: improve ~7 nodes: crossing=island ⇒ crossing:island=yes (where applicable, remove tags/node if not)

Berlin-Moabit, div: improve ~3 nodes: crossing=island ⇒ crossing:island=yes (where applicable, remove tags/node if not)

Berlin-Pb, div: improve ~3 nodes w/ crossing=island ⇒ crossing:island (where applicable)

Berlin-Fh, div: improve ~2 nodes w/ crossing=island ⇒ crossing:island

Berlin-Fh, GrünbergerStr: improve ~1 crossing ⇒ crossing:island

Berlin-Fh, div: improve ~9 nodes w/ crossing=island ⇒ crossing:island

Berlin-Kb, div: improve 5 nodes to crossing:island schema, of which prefix 1 as construction:, ~1/-1 node where it does not apply

Berlin-Kb, div: improve 3 nodes to crossing:island schema

Berlin-Kb, div: improve 4 nodes to crossing:island schema, 1 set as construction:highway

Berlin-Rudow, div: improve 4 nodes to crossing:island schema

Berlin-Gropiusst, FritzErlerA: correct/improve crossings

Berlin-Nk, div: improve 2 nodes to crossing:island schema, move appropriate tags from 1 node to actual crossing nodes

Berlin-Britz, div: improve 3 nodes to crossing:island schema

Berlin-Britz, Buschkrug: improve to crossing:island schema