Average Speeds (post it if you got it)

[LeanBurn]

Normal commute 55mph (90kph) 95% highway, ~35mph (56 kph) in the city for the other 5%

[Diesel_Dave]

Originally Posted by LeanBurn

Normal commute 55mph (90kph) 95% highway, ~35mph (56 kph) in the city for the other 5%

Is that your average speed or your average cruising speed? You must be flying to average 35 mph in the city.

[Diesel_Dave]

Here are my specific numbers (by tank) -- in mph:
29.02
28.15
29.72
29.82
28.33
27.13
29.50
30.83
28.98
30.11
29.71
28.87
28.71
26.08
28.32
25.28
25.87
25.54
25.65
27.16

[LeanBurn]

Originally Posted by Diesel_Dave

Is that your average speed or your average cruising speed? You must be flying to average 35 mph in the city.

I have unrestrained 55mph (90kph) on the highway no exceptions. I have one stop light in one town and a stop sign in the next....that's it, besides that its 35mph (50kph) in each town. I very rarely hit the light.

[campisi]

From newest to oldest, since I started tracking average MPH from my UG:

MPH MPG
46.9 31.3
42.8 29.0
51.4 30.9
53.3 29.9
41.4 30.2
39.3 30.3
34.7 29.9
34.3 27.9
41.1 30.2
38.1 28.3

Just posted the MPG numbers for fun as there's no strong correlation.

[slowmover]

Average speed is in signature.

I've noted that FE is good in a CTD where the average speed is at least 26-mph. Below that it drops like a stone for a given truck specification (to cite variances in vehicle spec, climate, terrain and driver skill).

Asking this question on CTD forums has tended to confirm this average.

I suspect it is true for nearly all other automobiles as well.

As lower highway travel speeds are conducive to highest mpg (above 60, is, literally, speeding), so, too, is the elimination of idling conducive to highest average mph (no drive thru's, no idling for interior temp regulation).

One might look at average mph and long-distance travel speed as ideal where they are numerically closest together.

How to do that is known as a "trip plan".

.

[dremd]

30-35 mph typical, but I spend lots and lots of time on the interstate (I can see it from my house).
I've seen as low as 19, and as high as 62 for tanks before.

[user removed]

After 45 years living here in Eastern Va, I know all of the best routes, even know most of the potholes. I average 35 MPH by precise light timing, usually catching less than 5 lights out of 23 either way. It's a treat when I can catch a 12 second green left turn in an over 1 minute cycle after driving 12 miles form my house. To do this requires me to maintain a very precise speed. On route 143 that is 48 in a 45 zone. 2 MPH slower and I will catch many more yellow lights, to fast and I hit the reds before the traffic starts moving away when the light turns green.

I would be that the window is so small that at the end of my 20 mile drive my arrival time can probably be measured in seconds. I can avoid this by taking the Interstate but risk getting caught by an accident and sitting for over an hour while they clean up the mess. It happens occasionally but I generally avoid the Interstate here, even to the point of taking the older state and US routes on trips to the step daughters houses.

Being retired I can avoid the congestion during rush hour and it is always a consideration when the wife and I go out to dinner as well as timing our arrival to avoid the periods when others crowd restaurants. Lots of time we get there a little early and when we leave the line is many times longer than when we arrived.

Knowing the less travelled routes helps greatly when congestion gets really heavy, which can happen anytime but is mostly seasonal here when the tourists arrive in summertime. The Hampton Roads Bridge Tunnel has had traffic backups of 14 miles and 14 hours to travel that distance. We listen to the traffic report as we leave the neighborhood and also watch the Interstate overpasses as we travel down 143 which runs parallel to I64 heading east from my home.

regards
Mech

[Fat Charlie]

I hadn't bothered to care, but I just decided to go out and check. I filled up last Thursday, and the UG shows 57.5 avg mph since then.

[echo-francis]

my average speed for my commute is about 18-20 MPH (lots of city and lights)