Subway Validation Results for Russia

Route "#a8bce2" has different colour from master "#acbfe3" (relation 301485, "Бутовская линия")
Route "4А" has different ref from master "4" (relation 302147, "Филёвская линия: Александровский сад — Международная")
Route "4А" has different ref from master "4" (relation 1463286, "Филёвская линия: Международная — Александровский сад")
Route "#a8bce2" has different colour from master "#acbfe3" (relation 1580607, "Бутовская линия")
Route "#a8bce2" has different colour from master "#acbfe3" (relation 3873066, "12")
Route "#a8bce2" has different colour from master "#acbfe3" (relation 3873067, "12")
Route "11А" has different ref from master "11" (relation 8119158, "Большая кольцевая линия: Деловой центр => Савёловская")
Route "11А" has different ref from master "11" (relation 8119159, "Большая кольцевая линия: Савёловская → Деловой центр")
Only one route in route_master. Please check if it needs a return route (relation 300607, "Кольцевая линия (внутреннее кольцо)")
Route does not have a return direction (relation 1570094, "Серпуховско-Тимирязевская линия: Бульвар Дмитрия Донского → Владыкино")
Route does not have a return direction (relation 1570142, "Серпуховско-Тимирязевская линия: Отрадное → Бульвар Дмитрия Донского")
Route does not have a return direction (relation 1472533, "Арбатско-Покровская линия: Площадь Революции → Щёлковская")
Route does not have a return direction (relation 1475756, "1")
Route does not have a return direction (relation 1516304, "7")
142 unused stations: n10281867411, n1062135937, n1062474614, n1062480585, n1062487275, n1145722295, n1167209019, n1387795431, n1405332172, n141135145, n146573247, n1467468087, n148240095, n1668628211, n1705951317, n1985948187, n1985948193, n1987281823, n1987281826, n1987604386, ...
2 subway entrances are not connected to a station: n5901180936, n5901180953
2 subway entrances are not in stop_area relations: n5901180936, n5901180953

Angle between stops around "Аэропорт Шереметьево — Северный терминал (B, C)" is too narrow, 40 degrees (relation 3255502, "Аэроэкспресс: Одинцово -> Шереметьево")
Angle between stops around "Аэропорт Шереметьево — Северный терминал (B, C)" is too narrow, 39 degrees (relation 3255503, "Аэроэкспресс: Шереметьево -> Одинцово")
436 unused stations: n10281867411, n1062135937, n1062474614, n1062480585, n1062487275, n1123660474, n1145722295, n1157975976, n1158396469, n1167209019, n1221839292, n1237081656, n136876035, n136880164, n1387795431, n1405332172, n143411800, n146573247, n1467468087, n1527999919, ...
2 subway entrances are not connected to a station: n5901180936, n5901180953
2 subway entrances are not in stop_area relations: n5901180936, n5901180953