Hi, zdravo.
There is routing validator http://peirce.zkir.ru/qa/HR-FULL/rd-map - it’s searches for most common routing problems such as overlapped highways, and islands of isolated highways (distributed by highways levels).
Usualy I fix some of them, but for now thereis to many of errors for one man. Is somebody interested to help fix them?
And one more thing, I can try to add sr translation but I’m not very good in such busines. So I can make a draft and send it somebody for correction, ofcourse if somebody interested in regular validation.