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Turning radius for a long semi-trailer
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Source：Internet Author：Unknow Pubdate：2008-04-24
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heavyhauler (Industrial)
21 May 07 13:12
How do i find and calculate the turning radius of a semi-trailer that is 135' Long 10' wide. My dispatcher is asking me to draw it on AUTO-CAD. can someone please help!
francesca (Civil/Environme)
21 May 07 17:00
The longest standard design vehicle in the AASHTO Green Book is 73.3 ft long, with a wheel base of 67 ft. State DOTs may have turning templates in their cells/blocks libraries, but they will more than likely be the AASHTO standard design vehicles.
Is a 135' long vehicle even legal on the roads? I imagine it would have to be double articulated. If you can match the longest wheel base to one of the standard vehicles, then you will have your turning radius and may be able to use a standard drawing from one of the agencies.
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heavyhauler (Industrial)
21 May 07 18:06
Thanks for the quick reply. The total length of the truck and trailer is 140 foot. It is a 13 axle combunation trailer. This type of trailer is common for oversize and over dimensinal loads. Gross weight can be up in 300 to 400,000lbs. How do i find or use this "cells/blocks"?
ACtrafficengr (Civil/Environme)
23 May 07 8:16
Have you called the trailer manufacturer? They should be able to help you. "...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928
"I'm searching for the questions, so my answers will make sense." - Stephen Brust
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