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Old 08-23-07, 11:29 AM   #1
SunFlower
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Measuring Hill Angle ?

I remember reading a thread in this section about the degree of angle of some hills in the PV area. I was just wondering how you measure the angle ? Is there a device I can buy somewhere ?
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Old 08-23-07, 11:41 AM   #2
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Me and a friend were talking about such a thing last night, he has one of these but I don't remember where he got it.

http://www.chainreaction.com/inclinometer.htm
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Old 08-23-07, 11:42 AM   #3
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Triathlete Zombie in Manhattan Beach carries it. I was there yesterday and saw it hanging behind the counter.
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Old 08-23-07, 12:08 PM   #4
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go to home depot
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Old 08-23-07, 12:30 PM   #5
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I have been wondering why cities don't publish their surveying data. They undoubtedly have this information? They should makeit available on the cities website as public record.

Taking the average (rise / run) isn't very accurate for severely undulating hills. I have some of these types of hills around my house and all the web routing systems give wildly different elevation readings.
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Old 08-23-07, 12:59 PM   #6
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You could got to map Map My Ride. It will give you the topo information.
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Old 08-23-07, 02:11 PM   #7
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I usually use Google Earth. I measure the distance of the stretch I want and it shows the elevation anywhere along the way. Then I do the math.
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Old 08-24-07, 08:52 AM   #8
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Survey info?? if you really want to get that detail... just go to the City, County or State Public Works record office and ask for the as-built of the roadway(s). You might have to pay for copying. they are all public records. However, after 9/11, some of the data is more sensitive (like major structures).
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Old 08-24-07, 05:20 PM   #9
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On a steady even grade I count the feet gained in 1 mile then divide by 5280 feet in a mile and that will give you the grade % or just divide by 5 and thats close enough. 300 ft divided by 5 = 6% It's never as steep as I think.
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