Help with driveway design

YotaOnRocks

YotaOnRocks

Well-Known Member
Joined
Jul 17, 2007
Location
Madison
I am building a 40x60 barn with 20x60 lean to on each side. I will be keeping my camper under one of the 20' lean to's. I want to be able to pull in from one side and when leaving pull out the other and loop around the barn back into the driveway.

Camper is 45' long and truck is roughly 32' long. How do I go about designing the driveway into and out of barn? Camper is still on order so I can't do dry runs in large parking lots which is the only way I know to figure it out.
 
YotaOnRocks said:
I am building a 40x60 barn with 20x60 lean to on each side. I will be keeping my camper under one of the 20' lean to's. I want to be able to pull in from one side and when leaving pull out the other and loop around the barn back into the driveway.

Camper is 45' long and truck is roughly 32' long. How do I go about designing the driveway into and out of barn? Camper is still on order so I can't do dry runs in large parking lots which is the only way I know to figure it out.
Click to expand...

Truck turning circles in civil 3d.
 
Thats a heck of a rig you're planning for. First thought that popped in my head is visit a newer fire station that responds with a ladder truck or tiller. Most new stations are designed to pull through and/or around similar to your project. Look at their driveway configuration, widths, radiuses (radii?). May also check out places designed for large buses/motor homes? Sorry, best I can do.
 
CasterTroy said:
Ironically I got my truck radius from Shawn šŸ˜Ž

I may not get to it till Wednesday but if you can wait till then I can whip something up for you.
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That would be great, thank you sir.
 
simpleman01 said:
Thats a heck of a rig you're planning for. First thought that popped in my head is visit a newer fire station that responds with a ladder truck or tiller. Most new stations are designed to pull through and/or around similar to your project. Look at their driveway configuration, widths, radiuses (radii?). May also check out places designed for large buses/motor homes? Sorry, best I can do.
Click to expand...
Here is a picture of a similar rig
fullsizeoutput_3069-L.jpg
 
CasterTroy said:
Ironically I got my truck radius from Shawn šŸ˜Ž

I may not get to it till Wednesday but if you can wait till then I can whip something up for you.
Click to expand...

If you have the plugin for civil 3d, you can spec out the truck and then drive it around on the site plan. It'll show the tracks for all the tires, depending on how tight you turn, etc.
 
YotaOnRocks said:
Over 1/2 mile uphill winding across creeks, I'm not that big of a gluten for punishment
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You just need one straight section past your parking spot so you can pull past it, then jack knife in backwards. If you're a decent driver, you shouldn't need any more room to pull out than the length of the truck and trailer together plus a few feet. No need for an extra half acre of turn around on the other side of your shop with that setup.
 
awheelterd said:
You just need one straight section past your parking spot so you can pull past it, then jack knife in backwards. If you're a decent driver, you shouldn't need any more room to pull out than the length of the truck and trailer together plus a few feet. No need for an extra half acre of turn around on the other side of your shop with that setup.
Click to expand...
Maybe I'm simple but I have read this 20 times and still can't understand:dumbass:.

Here is my cad design to show what I had in mind
Screenshot_20210620-002102.png
 
For whatever reason I was thinking that your parking spot was going to be perpendicular to the driveway.... :dumbass:
 
Youā€™re going to eat up a lot of space on the back side pulling that in. 90-110% of the length of your rig to pull in straight. Depending on how much wider the lean-to is than the rig.
 
Futbalfantic said:
Youā€™re going to eat up a lot of space on the back side pulling that in. 90-110% of the length of your rig to pull in straight. Depending on how much wider the lean-to is than the rig.
Click to expand...
8.5' wide on truck and trailer through a 14' wide door
 
I thought about building a hitch to go on my ctl so I could pull the camper near the barn, drop it, and then turn it around but I'm afraid I would brake the camper suspension or stress the frame in the pinbox using the ctl.
 
Seriously just clear a big area and gravel it all behind the shop so you've got a turnaround and an area to store junk vehicles. Would also give you a good area to turn pickup truck and trailer around to get back out.
 
Limitation 1 is the turning circle of your truck, and number 2 is the scrub radius of your trailer when your truck is at full lock. There's probably a way to figure it out geometrically if you know the turning circle, the steering angle of your front tires, the distance from your hitch pin to your outside front tire on the truck, and your inside rear tire on your trailer. But at midnight on Saturday, I'm not smart enough to tell you what it is. (Was typing this last night when my phone died, but still not any more motivated this morning)
 
braxton357 said:
Seriously just clear a big area and gravel it all behind the shop so you've got a turnaround and an area to store junk vehicles. Would also give you a good area to turn pickup truck and trailer around to get back out.
Click to expand...
That is definitely an option, I'm currently trying to nail down my exact location for the barn and am trying to figure out roughly how big of a flat area I need to maneuver so I don't build it just to find I have to put 1000 loads of fill in a gulley to turn around.

The red line is a rough representation of my new drive and the house site is at the end of it. Plan is to continue on with the drive to barn nearby barn and possible barn location and drive is in blue
Screenshot_20200408-144620~3.png
 
jeepinmatt said:
Limitation 1 is the turning circle of your truck, and number 2 is the scrub radius of your trailer when your truck is at full lock. There's probably a way to figure it out geometrically if you know the turning circle, the steering angle of your front tires, the distance from your hitch pin to your outside front tire on the truck, and your inside rear tire on your trailer. But at midnight on Saturday, I'm not smart enough to tell you what it is. (Was typing this last night when my phone died, but still not any more motivated this morning)
Click to expand...
I knew you was smart and stuff
 
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