Quote:
Originally Posted by pbodifee
Just researched EPA city cycle, which they say represents urban driving. Fuel Economy Test Schedules Can someone explain me the 60 mph in the beginning and end of the cycle? What are they simulating? |
Written by someone in the peerage with a mile long private driveway?
Quote:
Originally Posted by pbodifee
Don't know what is typical in USA, but here in Canadian cities the max speed is 50 km/h (31 mph). In rush hour no way you can get to this speed.
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Keep in mind that most of the urban traffic is by drivers who live in suburbs, or use a highway to get from one part of the city to another. In the US, highway speed limits vary from state to state, usually in the 55-75 mph range. I believe 65 is most prevalent.
What I don't think most estimates take into account is rush hour traffic.
I think that instead of three values, there should be a graph with average speed on the X axis, estimated fuel usage on the Y axis, and a shaded area around the resulting average line showing common variation.
For most cars, the resulting graph would look like a fat dolphin diving to the left with its snout at (0 mph,0 mpg), a hump in the 40-60 range, and the tail lower near top speed.