E The WB-20 [WB-65 or 67]. Yamato Takeru Cantonese Dub here. Minimum Turning Path for Interstate Semitrailer (WB-20. AASHTO-Geometric Design of Highways and Streets. I was wondering if anyone out there had a template for a 75' long semi. Going to double and triple trailers is a WB-67. 75 foot semi turning radius. I seem to have lost my old ACAD turning templates. Does anybody have some ACAD format templates floating around for use? I'm looking for either self-digited. TURN.LSP Open Source Turning Path Tracker for AutoCAD. This site also has an AutoCAD drawing with turning templates for some AASHTO. WB-40: 8.5: 13: 27: 40.0.
WB is the designation for a semitrailer vehicle (tractor and trailer). The number that follow refer to the wheelbase, measured from the front wheels of the truck tractor to the most rear wheels of the trailer. There are also units with double or triple trailers, desidnated with a D or T after the number.
AASHTO's green book has dimensions of various vehicles and their turning movements. Do a web search and you'll probably be able to find the information from a variety of sources.
FHWA might be a source, or your state highway department. AASHTO does not show either tankers or automobile carriers, but I would try to design around a WB-67, which is the largest semi-trailer rig. Delivery trucks would likely be designated as single-unit (SU) vehicle (no trailer), which has different turning dimensions than a semi-trailer. A designer would typically use a copy of a turning movement diagram on a clear sheet to overlay the plans to check for conflicts. There are tables which give minimum turning radii for various vehicles, but this isn't always enough to design from.
RE: AASHTO Design Vehicles (Civil/Environmental) 23 Feb 05 08:02. In NY state, WB 63's and larger are only allowed on a limited network of highways, so designing for them is a waste of money in most cases. NY's list of qualifying and access routes is available on the NYSDOT website, here: The templates show what most vehicles in that class are capable of, with no regard for the skill (or lack of it) of the driver. It's good practice to allow at least a 3 ft (1 m) margin of error. For tandems and triples, I'd make it even more.
------------------------------------------ 'Come to think of it, there are already a million monkeys typing on a million typewriters, and the Usenet is NOTHING like Shakespeare. - Blair Houghton RE: AASHTO Design Vehicles (Civil/Environmental). An 84' vehicle would need a special hauling permit in NY, so I have no experience with these. ASk your client if they can put you in contact with the vehicle manufacturer or dealer. They might have the information you are looking for. A stinger-steered vehicle would probably off-track less than a conventional semitrailer of the same length.
------------------------------------------ 'Come to think of it, there are already a million monkeys typing on a million typewriters, and the Usenet is NOTHING like Shakespeare. - Blair Houghton. Fsb Alpha Training Course more.
I did not find one, but did find a free program for generating turning paths: For what it is worth, the largest vehicle I see listed in AASHTO before going to double and triple trailers is a WB-67. It lists a total length of 73.50'.
Wrote in message news:5328043@discussion.autodesk.com. I was wondering if anyone out there had a template for a 75' long semi and trailers turning radius. I looking in Architectural graphic standards 10th edition and all i get is a WB-60. Could someone help me out with this please.
Jon Maybe this will help you Dave 'Terry Scanlon' wrote in message news:5328860@discussion. Hp Compaq Nx6110 Recovery Cd on this page. autodesk.com. AASHTO Geometric Design of Highways and Streets (the Green Book) lists a WB-65 & WB-67 as follows: Overall Height 13.5 Width 8.5 Length 73.5 Overhang Front 4 Rear 4.5-2.5 WB-65 wheelbase 65 WB-67 wheelbase 67 WB1 21.6 WB2 43.4-45.4 Typical Kingpin to Center of Rear Axle 45.5-47.5 Trailer Length 53 wrote in message news:5328170@discussion.autodesk.com. I'm looking for the what are the wheel base and overhang on a 75' semi trailer the trailer is 53' long.