City driving mileage


#1

How does the EPA estimate city driving mileage, rush-hour in Manhattan or midnight in Yeehaw Junction? What average speed is used, and how much time at dead stop per mile is assumed?


#2

Here is an article that explains the testing procedures, although not in great detail it will give you some idea. It also explains what changes were made for 2008.

http://www.edmunds.com/insideline/do/Features/articleId=118986