Posts tagged ‘flyover’

BBL Sterrett 2011-12-10 at 20x normal speed (320mph avg speed)

So this is what BBL looks like at 20x speed (roughly 300-400mph … sometimes faster, sometimes slower depending on whether we are going uphill or downhill). This also includes my ride to/from the start of BBL. BBL itself starts at 2:15, the Sterrett attack zone starts at 8:32 and finishes at 8:52. The climb up Vandiver starts at 10:20 and the descent down the other side finishes at 10:58. Chris, Morgan, and I climb Karl Daly at 13:38 and then one of my crazy climbing routes through Irondale and Mountain Brook starts right after the Grants Mill descent at 14:10. Fun 280 section from 15:40 until 15:50, Smyer climb at 15:55, Vesclub descent at 16:40, Panorama Dr at 17:20, South Cove descent at 17:32

December 11, 2011 at 9:57 am Leave a comment

Strava KOM shootout

Scroll to minute 7:30 and watch the Altaloma descent, South Cove KOM climb (at 7:45), Panorama (at 8:06), Renfro Descent (at 8:32), and a second descent down Altaloma (at 8:42).

It all started with my teammate Nichole and her husband Paul posting the following comments on my Facebook page -

Nichole got right to work on it and did a search on Strava to download all the climbs in Birmingham along with the fastest time and number of times ridden. From that selection of climbs, Nichole and Paul narrowed it down to a nice variety of climbs of varying lengths and steepness. I put together a website using the Strava API so that all somebody has to do is copy the Strava URL for their effort on the climb to have it recorded alongside everyone else.

Strava KOM shootout Tria Cycling p/b DonohooAuto.com screenshot

This week’s climb, South Cove Dr, starts less than 1 mile from my house as the crow flies, 1369.4664 meters to be exact. I’ll give it the steepest climb in Birmingham designation given that you can hit nearly 60mph on the descent (and it is only 0.2 miles long). I do know of a few climbs that have higher max gradients, but none of them sustain those max gradients for as long as South Cove sustains its max.

Two more things to emphasize how steep this climb is:

1) As I was doing a max effort on it today, I kept on pulling the front wheel off the ground slightly on every pedal stroke and had to back off on how hard I was pulling on the bars
2) This climb is 1/4th the length of the Pumphouse climb, yet climbs 30 feet higher, and would take longer than Pumphouse with similarly applied power on both climbs
3) Minimum of 385 watts not to fall over through the steepest section (see the ibike data from a ride from February earlier this year and elevation profile below) -

---------South Cove Dr Monster---------
Dist:        0.22 mi (0:02:50)
Climbing:     229 ft
Energy:      52.0 kJ
Cals Burn:   49.7 kcal
Braking:      0.0 kJ (0.0%)
          Min   Avg    Max
Power     226  306.0   403  W
Aero        0   10.9    17  W
Rolling     5    6.3    10  W
Gravity   198  291.0   385  W
Speed     3.5    4.8   7.6  mi/h
Elev       512    634   740  ft
Slope     9.0  18.01  24.3  %
Caden      31   41.3    65  rpm
HR        132  158.3   165  bpm
NP 309 W; IF 1.114; TSS 5.9

South Cove Dr – less than a mile from my house, this climb has the highest average gradient of the monsters.

Here is a 3D annotated view of the climb: contour intervals are 40ft

3D view of the south cove dr climb

3D view of the entire route – including warmup before attempting the KOM

Super hi-res topoCreator map of the entire route (5MB)

December 10, 2011 at 9:14 am Leave a comment

The topography of a hilly commute

If you have ever wondered what it is like to ride on one of my commutes through Birmingham, I’ve included a map and video from my commute yesterday. I discovered that Google Earth Pro (the trial version) lets you record a 3D flyover movie of an imported GPS route. Enjoy my 1 hour 45 minute commute home condensed into a 17 minute video. Or check out the 3D annotated topocreator map below the video. You really get a sense of all the rolling hills in Mountain Brook from minute 5 until minute 12 in the video. The only Cat 3 climb on the route is at the beginning climbing Old Hwy 31 to Hwy 31 to Vestavia Dr. When the arrow is moving fast, that means I was going downhill fast. When the arrow is moving slow, that means I was climbing slowly.

3D annotated commute route home from work. This view is looking southwest.

December 7, 2011 at 9:06 am 4 comments


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Still clear today... looking east from bluff park out towards double oak and signal mountain. Humidity is down, super clear this evening. Six node cluster using a really old router connected to modern switch. Appears to be working great.

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Anaerobic Threshold:
Power:315 watts
Heart rate:180 bpm
Maximums:
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Heart rate:198 bpm (5s)
AT power estimated by critical power curve in Golden Cheetah, which predicts I should be able to maintain 315 watts for 1 hour.

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