I10 111.2 MM
West of Phoenix on I10 there are several miles of MMs like 111.2, 111.4, etc. What is that all about?
Forum Discussion
My guess is a speedometer test section, such as these listed for Washington
http://www.rainierautosports.com/reference/odocheck.htm
But I couldn't find any such notification signs along this stretch of I10 (via GM Streetview).
http://www.rainierautosports.com/reference/odocheck.htm
But I couldn't find any such notification signs along this stretch of I10 (via GM Streetview).
