Rail tracks diagram of Seibu Railway Tokorozawa Station in Tokorozawa, Saitama, Japan.
Reference material:
DENKISHA KENKYUKAI, "THE RAILWAY PICTORIAL" Vol.716, Extra edition - "西武鉄道(Seibu Railway)" insert page at end, and Figure 6 on Page 137, 2002-04.
Seibu Railway official homepage, station map - Tokorozawa Station (Japanese)
Own work
Tawashi2006