Cityguide does it. Including does and what CrazySquirrel wrote above. Standing on the right says "turn left". But the problem in this. Can't — go as they can, it will rebuild again.
Navigation from Google and Yandex is nedonashivanie, anyway. Yandex is better, generally well made at first glance, but some of the crap in actual use out in the last days. Buggy yet. Hope finished.