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Tool for the third dimension - mapping route altitude


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I recently used the Google Earth "Path" feature to get elevation information on a bike route we travel occasionally.  ...

Glad to hear of more ways to the data, and I was going to say something about great mileage on the downhill side before I appreciated you do this on 2 wheels and >1HP... more power to you!

 

HAve fun,

Frank

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I plotted my daily route and the overall +/- is 23ft!!!! yet I can see an mpg difference of 5-15mpg (usually towards the latter) depending on the direction.  Why?  Wind.  Can be calm on the morning run yet 35-40mph in the afternoon. 

 

 

NOTE:  With a mac/safari, I have to use google's classic maps to see the appropriate "link" icon.  

Edited by fotomoto
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I plotted my daily route and the overall +/- is 23ft!!!! yet I can see an mpg difference of 5-15mpg (usually towards the latter) depending on the direction.  Why?  Wind.  Can be calm on the morning run yet 35-40mph in the afternoon. 

 

Perhaps temperature or use of air conditioner

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Perhaps temperature or use of air conditioner

 

Yes those should always be considered as variables that effect mileage but nothing like:

 

A 35 to 40 mph head wind will DESTROY!! your mileage, especially at interstate speeds. It's right up there with wet roads.

 

YUP!  I've been driving this same route for the past five years in first a prius, then a volt, and now a cmax.  The effect has been the same on them all.  

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A 35 to 40 mph head wind will DESTROY!! your mileage, especially at interstate speeds. It's right up there with wet roads.

 

Now that I think about it, it makes sense.

 

So as I see it now, the wind resistance at 50 mph and a 40 mph head wind would be similar to a wind resistance at 90 mph with no head wind.

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Cold headwind uphill both ways must be the worst. :)

 

FTFY   :lol2:

 

How do I access classic maps? When I try to get the link, gps visualizer says not found. From within Google Earth, I don't see any other way to capture the url. Help!

 

On the new google maps page, look to the upper right corner for a gear looking icon.  Click that and select "classic maps".   The link icon is next to the printer.

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FTFY   :lol2:

 

 

On the new google maps page, look to the upper right corner for a gear looking icon.  Click that and select "classic maps".   The link icon is next to the printer.

 

Oh thanks foto.. I was using Google Earth instead of Google Maps. Now it works...and really cool.

Edited by MtnMarty
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Wow, what a great find!  I always knew work was at a lower elevation than home but I had no idea it was almost a 400 foot difference!  I normally hit 80-85 mpg about the 10 mile mark, and then drop down to 70-75 over the last couple miles, that is perfectly explained here as well!  I have gotten my home mileage up to 45-50 depending on traffic and whatnot, I'm amazed I am getting that with the hills I have to climb!

 

Drive to work:

 

Drive To Work

 

Drive home:

 

Drive Home

 

Just for fun, here is the hill by my house I used to go up and over everyday before I decided to drive around it, 150 feet up on one side and 175 feet up on the other.  I did make this trip to get a haircut up and over the hill and back during my 686 mile tank, short 4 mile round trip with a cold car I burned 0.25 gallons, which is way more than I burn driving 12.3 miles to work!

 

Hill near me

Edited by SnitGTS
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post-1320-0-60786000-1379476806_thumb.png

 

Well, this route (Denver to St. Louis via Nebraska) is about a 1 mile drop over 1000 mile run, an average 0.1% grade. Purely from an energy standpoint... 1 mile or altitude is "worth" ~26 megajoules of energy @ 0.016MJ/meter. That's about what we get out of 2/3 gal. of gas at 30% efficiency to the wheels.

 

Altitude has an effect, but the problem is finding a 10 mile drop (1% grade for 1000 miles).

 

Conversely, good driving practice, terrain and managing parasitic losses over the 1000 miles is likely a stronger driver than net altitude change.

 

Have fun,

Frank

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I was puzzled why my mileage making a trip from Tucson to Sun City West outside Phoenix was always better going than coming back, like 44.1 vs. 39.4.  When I eliminated wind as a major factor on this last trip, I decided to check the elevation using this nifty tool and found out it's a downhill trip going and, imagine this, uphill coming back!

 


post-629-0-88514300-1379769575_thumb.png

Edited by ArizonaEnergi
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Cheers to the Third Dimension!  Our C-Max loves hills!  (137 miles, 8000'+ el. diffs, 56 MPG)
 
Here is a trip that I tracked with the above links through to EveryTrail.com - pretty fun.  Ignore the photos (forgot the camera at home) and click on the profile icon in the lower right corner of the map image. 
 
http://www.everytrail.com/view_trip.php?trip_id=2326989
 
Thanks again for the links, Frank.
 
Nick

 

(PS  Profiles include mileage across the water, whereas, the odometer/trip, of course, does not.  Our side trips coincidently added up to the water crossing distances)
 

1379880609 15837 P 67 183 218 75


 
 

DSC 4739

Edited by C-MaxSea
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