I looked at the google aerial maps of the city. Anything near the city center seems to be made up of a lot of hexagons everywhere. No wonder they are looking for help...it's a crap map to start with! Every turn along major roads is either 30, 60, or 120-degrees, and many of them have a round-about.
This stadium circuit seems reasonable
http://www.gmap-pedometer.com/?r=6812234