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Author Topic: Southern Highway Road Testing  (Read 1323 times)
Kelum
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« on: January 27, 2011, 01:25:49 PM »

Hi all,
I received these images through an e-mail...
See how they tested HW.... Shocked

This Vehicle Equipped with special tools to check .Road Level testing. Angels. Bend angels. Road condition.. grip .. slippery conditions. speeding conditions.. etc..
Special Survey vehicle with survey equipments started southern high way condition testing.
















You will be enjoying by this
thanks
Kelum
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fanro
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« Reply #1 on: January 27, 2011, 08:21:14 PM »

 Cool Cool Cool  Cool wow ....
Thank you Kelum !!!
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Para Dige
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« Reply #2 on: January 27, 2011, 10:38:57 PM »

Hmmm......I am quite perplexed as to why the condensed water from the AC of the survey vehicle is draining down to the other side of the road. I am no road design expert, but generally the road level is highest at the mid point and cambers to the shoulders. Any other plausible explanations?

BR
Para Dige
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CE
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« Reply #3 on: January 27, 2011, 10:57:56 PM »

Hi Para dige,

It might be a bend where the entire road has a slight angle to maintain the speed which is general in Freeways (highways). Highest mid point is ok with roads operate under ~ 60 km/h which we already have in Sri Lanka. Above that speed the angle of a bend matters the stability of vehicles. That is the reason why the water flow the other way you have expected.

regards,
Charith
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Kelum
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« Reply #4 on: January 28, 2011, 01:49:35 AM »

Hi Para Dige,
It might be a bend where the entire road has a slight angle to maintain the speed which is general in Freeways (highways). Highest mid point is ok with roads operate under ~ 60 km/h which we already have in Sri Lanka. Above that speed the angle of a bend matters the stability of vehicles. That is the reason why the water flow the other way you have expected.

Yes you are correct Eranga,
that is called Super Elevation, Actually our normal roads with 60km/h speed limits also should design according to this way.
But unfortunately our RDA don't worry about the Correct Elevations of the bends
So we can see totally opposite side angeled bends in our country.
That is very unfit to the vehicles with high speed. .... Huh
Even at 60Km/h.... Grin
Thanks
Kelum
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Para Dige
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« Reply #5 on: January 28, 2011, 11:14:26 PM »

Hi Eranga and Kelum,

I understand the principal in general, but the photos that I am referring to does not show a bend in this particular road section. May be they don't show the exact scenario. I also see that it runs adjacent to a forest patch. Hope there won't be too many road kills.... Sad

Para Dige
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