Doubles And Triples

Topic 26035 | Page 1

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Army 's Comment
member avatar

Hello

Curious about the benefit of doubles and triples. I noticed so many OD drivers pulling triples and doubles, (out west the past two weeks) and I wonder other than possibly being able to drop a trailer and move of faster than waiting for a partial unload, what is the real real to use them? Don’t they have to abide by the 80k weight limit for a combination vehicle? So there wouldn’t necessarily be more product on them.

Thank for the read and replies.

Combination Vehicle:

A vehicle with two separate parts - the power unit (tractor) and the trailer. Tractor-trailers are considered combination vehicles.

Doubles:

Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. However there are some states that allow doubles that are each 48 feet in length.

Banks's Comment
member avatar

Its a system for separating freight. A company can send trailers going in the same direction but to different places without having to touch anything. So say OD has freight going to Orlando and Charlotte. They can send both trailers with one driver and drop and hook along the way.

Also, a lot of freight is on a schedule. They can't wait for enough freight to load a 53' trailer. A 28 gets loaded faster. They only get unloaded if they reach their final destination or if it's coming from a terminal that doesn't sort freight. A terminal that only does p/d still had there pick ups. They'll load those pick ups into a 28 and send them to the closest hub to be sorted.

To shorten this 28s are rarely used for p/d. They can be, but it's rare. They're just used to move stuff faster. They do abide by all weight laws At FXF the goal is 13K per trailer. Each trailer weighs 9k and the road tractor typically weighs 15K. A tractor pulling doubles will weigh about 60K if fully loaded. That's 15 for the tractor, 18 for the trailers, 3 for the dolly and 26 for freight.

They're also loaded very carefully. The weight is distributed evenly and there are limits on how much can be loaded on the front of the trailer and how much can be loaded on the tail.

Terminal:

A facility where trucking companies operate out of, or their "home base" if you will. A lot of major companies have multiple terminals around the country which usually consist of the main office building, a drop lot for trailers, and sometimes a repair shop and wash facilities.

Doubles:

Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. However there are some states that allow doubles that are each 48 feet in length.

Drop And Hook:

Drop and hook means the driver will drop one trailer and hook to another one.

In order to speed up the pickup and delivery process a driver may be instructed to drop their empty trailer and hook to one that is already loaded, or drop their loaded trailer and hook to one that is already empty. That way the driver will not have to wait for a trailer to be loaded or unloaded.

HOS:

Hours Of Service

HOS refers to the logbook hours of service regulations.
Bobcat_Bob's Comment
member avatar

I am too tired for a detailed answer but Doubles and triples are usually run by LTL companies, it always us to take mulitple shipments to multiple destination easier.

Like today I ran a Harrisburg Pa and a Jersey City trailer to a meet point where the meet guy takes it to another meet that guy takes it to a terminal where a Jersey City driver comes and gets it and another trailer. So in a day the trailer could in theory go 1k miles a day.

We are only allowed 20k pounds per axle for a gross of 80k. I wish we where only loaded to 60k gross, I have had up to 26k in one trailer and been loaded to 79,980k.

We have safe stack in our trailers so it doubles the space by allowing you too build shelves and stack freight basically doubling the trailer capacity.

Terminal:

A facility where trucking companies operate out of, or their "home base" if you will. A lot of major companies have multiple terminals around the country which usually consist of the main office building, a drop lot for trailers, and sometimes a repair shop and wash facilities.

LTL:

Less Than Truckload

Refers to carriers that make a lot of smaller pickups and deliveries for multiple customers as opposed to hauling one big load of freight for one customer. This type of hauling is normally done by companies with terminals scattered throughout the country where freight is sorted before being moved on to its destination.

LTL carriers include:

  • FedEx Freight
  • Con-way
  • YRC Freight
  • UPS
  • Old Dominion
  • Estes
  • Yellow-Roadway
  • ABF Freight
  • R+L Carrier

Doubles:

Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. However there are some states that allow doubles that are each 48 feet in length.

OWI:

Operating While Intoxicated

Army 's Comment
member avatar

Thanks for the replies. Kind of what I had been thinking.

Wiggle wagon 's Comment
member avatar

Doubles , triples and Rocky’s are used mostly by LTL. there are a lot of benefits to loading them and the ability to drop and hook. The Rocky Mountain doubles max out at 105,000. So yes you can haul more in those

LTL:

Less Than Truckload

Refers to carriers that make a lot of smaller pickups and deliveries for multiple customers as opposed to hauling one big load of freight for one customer. This type of hauling is normally done by companies with terminals scattered throughout the country where freight is sorted before being moved on to its destination.

LTL carriers include:

  • FedEx Freight
  • Con-way
  • YRC Freight
  • UPS
  • Old Dominion
  • Estes
  • Yellow-Roadway
  • ABF Freight
  • R+L Carrier

Doubles:

Refers to pulling two trailers at the same time, otherwise known as "pups" or "pup trailers" because they're only about 28 feet long. However there are some states that allow doubles that are each 48 feet in length.

Drop And Hook:

Drop and hook means the driver will drop one trailer and hook to another one.

In order to speed up the pickup and delivery process a driver may be instructed to drop their empty trailer and hook to one that is already loaded, or drop their loaded trailer and hook to one that is already empty. That way the driver will not have to wait for a trailer to be loaded or unloaded.

HOS:

Hours Of Service

HOS refers to the logbook hours of service regulations.
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