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Improving truck assignment.

I have a transportation assignment question for the wild world as 2020 comes to a close.

I'm wondering what ideas / treatments have been applied to try and keep trucks on major freight corridors as opposed to picking an optimal path by simply time, distance, and cost.

As background, this is for Oregon's Statewide model, where we assign freight and passenger traffic separately.  Over the years we have tested various weights of distance versus time, but neither really solves the issue.  In either case (distance priority or time priority) there can be odd network configurations where a shorter time or distance path is through a neighborhood versus on the freeway.  So if we shift the priority some sections look better as far as attracting the right amount of freight traffic and some sections look worse.  Shift it again, and different areas look better and different areas look worse.  To be clear, we block links where trucks are not allowed to travel (and this helps), but there are many links where trucks can travel to reach their shipping destination but they are not primary routes, they are just side routes to finalize the last mile of delivery.  But assignment doesn't know that and uses them at the first instance of those routes becoming optimal.

We recently had a peer state give us an interesting idea - pre-load the assignment with trucks first, so that trucks make a longer trip length decision without knowledge or the easy ability to shift based on local congestion changes.  This idea was very interesting, but after looking at it more, it seems like that would be problematic for analysis in Oregon.  Specifically as Oregon continues to move forward with tolling analysis.  If trucks see a congestion free network first, they would be the first to jump ship at a policy made bottleneck like a toll.  So where some might expect trucks to be the last vehicles to try and avoid the toll; if they are assigned first, they would likely be the first (most likely) vehicles to re-route around the toll.

My current plan/thought is to tag links with national freight highway designation.  Any link tagged as a freight route would see the normal link impedance in assignment (1x).  All links not tagged as a freight route would have impedance multiplied up by something like 2x (would need to play with the multiplier).  This would allow trucks to dodge tolls on other major freight routes, but it would put a high penalty on dodging a toll through a small commercial street.  It would also push the trucks to get on freight corridors as fast as possible and stay there for as long as possible - which I believe would be pretty close to reality.  

A long question for the end of a long year.  Please share your experience and thoughts with me.  Many thanks

Alex Bettinardi

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Alex, first off, modeled trucks routing through neighborhoods is a potential diagnostic of network and/or assignment problems, along with whether car volumes are also o verloading those neighborhoods.  Secondly, most pre-load assignment schemes date back to when modelers had to assign with HOV lanes before the software packages caught on to multi-class equilibrium.  All sorts of unexpected problems arise from priority-order assignment schemes.

As you seem aware, m ost packages now let you set up multiple user-classes distinguished not only by which users get to use which links, but also give different base (free-flow) speeds or impedances for each class.  (That's especially useful where there's tolling.)  I've worked with one model that gives trucks *lower* base speeds on freeways, reflecting their lower speed limits.  Another  r easonable truck distinction is that  h eavy trucks travel slower than car traffic in local and urban settings due to frequent stops and turns, and slow acceleration, even if there's no congestion.  This seems a more  r ealistic and less arbitrary basis than a blanket penalty, although it's hard to rule out a deterrence effect for going off the designated freight roads.  Good luck and happy new year.

Alex, It looks like you have already explored the problem a bit, but I will add my 2c.

First of all, pre-loading truck trips sounds like a terrible idea and reminds me of how things used to be done a couple of decades ago, and your concern with policy testing is right on the money.

I would submit that going towards a more sophisticated generalized cost function for trucks is definitely the best path, but I would suggest taking a somewhat more sophisticated approach (assuming you have Truck GPS data), and proceed to estimate a route choice model exploring all the variables you may have (distance, free-flow time, congested travel time, road hierarchy, legal restrictions, etc) in order to build or generalized cost function.

Depending on your network and the OD pairs in question, treating for path overlap might be needed and you would most likely have to adjust the scale of the final generalized cost function when you bring it back to your multi-class assignment, and while the latter is easy to deal with, the former might be a little more laborious to implement.

You can also calibrate a cost function by trial-and-error, but that is both less robust and a lot less fun. If you decide to go that route, I would recommend looking into the truck route choice literature, as you might be able to borrow some parameters from which you can start your exploration.

Again, just my 2c.

Cheers, Pedro

On Sun, Jan 3, 2021 at 1:04 AM Alex Bettinardi < [email protected] > wrote:

> I have a transportation assignment question for the wild world as 2020 > comes to a close. > > I'm wondering what ideas / treatments have been applied to try and keep > trucks on major freight corridors as opposed to picking an optimal path by > simply time, distance, and cost. > > As background, this is for Oregon's Statewide model, where we assign > freight and passenger traffic separately. Over the years we have tested > various weights of distance versus time, but neither really solves the > issue. In either case (distance priority or time priority) there can be > odd network configurations where a shorter time or distance path is through > a neighborhood versus on the freeway. So if we shift the priority some > sections look better as far as attracting the right amount of freight > traffic and some sections look worse. Shift it again, and different areas > look better and different areas look worse. To be clear, we block links > where trucks are not allowed to travel (and this helps), but there are many > links where trucks can travel to reach their shipping destination but they > are not primary routes, they are just side routes to finalize the last mile > of delivery. But assignment doesn't know that and uses them at the first > instance of those routes becoming optimal. > > We recently had a peer state give us an interesting idea - pre-load the > assignment with trucks first, so that trucks make a longer trip length > decision without knowledge or the easy ability to shift based on local > congestion changes. This idea was very interesting, but after looking at > it more, it seems like that would be problematic for analysis in Oregon. > Specifically as Oregon continues to move forward with tolling analysis. If > trucks see a congestion free network first, they would be the first to jump > ship at a policy made bottleneck like a toll. So where some might expect > trucks to be the last vehicles to try and avoid the toll; if they are > assigned first, they would likely be the first (most likely) vehicles to > re-route around the toll. > > My current plan/thought is to tag links with national freight highway > designation. Any link tagged as a freight route would see the normal link > impedance in assignment (1x). All links not tagged as a freight route > would have impedance multiplied up by something like 2x (would need to play > with the multiplier). This would allow trucks to dodge tolls on other > major freight routes, but it would put a high penalty on dodging a toll > through a small commercial street. It would also push the trucks to get on > freight corridors as fast as possible and stay there for as long as > possible - which I believe would be pretty close to reality. > > A long question for the end of a long year. Please share your experience > and thoughts with me. Many thanks > > Alex Bettinardi > -- > Full post: https://tmip.org/content/improving-truck-assignment > Manage my subscriptions: https://tmip.org/mailinglist > Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526 >

In our Freight and Fuel Transportation Optimization Tool (FTOT), which routes over the national FAF network, we use an impedance penalty for the higher functional classes (e.g., 1.0 for Interstate, 1.3 for a local road). Since it is a national network, it does not include all links.

- Scott Smith

From: alexander.o.bettinardi= [email protected] On Behalf Of Alex Bettinardi Sent: Saturday, January 2, 2021 10:02 AM To: TMIP Subject: [TMIP] Improving Truck Assignment

CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or open attachments unless you recognize the sender and know the content is safe.

As background, this is for Oregon's Statewide model, where we assign freight and passenger traffic separately. Over the years we have tested various weights of distance versus time, but neither really solves the issue. In either case (distance priority or time priority) there can be odd network configurations where a shorter time or distance path is through a neighborhood versus on the freeway. So if we shift the priority some sections look better as far as attracting the right amount of freight traffic and some sections look worse. Shift it again, and different areas look better and different areas look worse. To be clear, we block links where trucks are not allowed to travel (and this helps), but there are many links where trucks can travel to reach their shipping destination but they are not primary routes, they are just side routes to finalize the last mile of delivery. But assignment doesn't know that and uses them at the first instance of those routes becoming optimal.

We recently had a peer state give us an interesting idea - pre-load the assignment with trucks first, so that trucks make a longer trip length decision without knowledge or the easy ability to shift based on local congestion changes. This idea was very interesting, but after looking at it more, it seems like that would be problematic for analysis in Oregon. Specifically as Oregon continues to move forward with tolling analysis. If trucks see a congestion free network first, they would be the first to jump ship at a policy made bottleneck like a toll. So where some might expect trucks to be the last vehicles to try and avoid the toll; if they are assigned first, they would likely be the first (most likely) vehicles to re-route around the toll.

My current plan/thought is to tag links with national freight highway designation. Any link tagged as a freight route would see the normal link impedance in assignment (1x). All links not tagged as a freight route would have impedance multiplied up by something like 2x (would need to play with the multiplier). This would allow trucks to dodge tolls on other major freight routes, but it would put a high penalty on dodging a toll through a small commercial street. It would also push the trucks to get on freight corridors as fast as possible and stay there for as long as possible - which I believe would be pretty close to reality.

A long question for the end of a long year. Please share your experience and thoughts with me. Many thanks

Alex Bettinardi -- Full post: https://tmip.org/content/improving-truck-assignment Manage my subscriptions: https://tmip.org/mailinglist Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526

We have been facing the same issue with our regional and state(province)-wide models. In the case of regional model, we had used a "pre-load" method, and over-assignment to toll roads was a problem which we could dampen with "calibrating" the value-of-time / perception weights for the base year. In our state(province)-wide model, we have not adopted the pre-load method, although it should be just as applicable. In this situation, we're faced with a bigger challenge as we've adopted a planning-level dynamic assignment of multi-classes with generalised cost (for toll roads), of having to deal with different classes of demand, even in the passenger vehicle trip assignment, i.e., urban vs inter-urban demand. In short, we don't have any solution to offer, but will be eager to see what other agencies are doing. Regards,

Sundar Damodaran, P.Eng. Team Leader | Systems Analysis & Forecasting System Planning Branch |Integrated Policy & Planning Division | MTO 416-585-7304 (voice mail) |437-993-1595(cell)

________________________________ From: alexander.o.bettinardi= [email protected] on behalf of Alex Bettinardi Sent: Saturday, January 2, 2021 10:00:23 AM To: TMIP Subject: [TMIP] Improving Truck Assignment

CAUTION -- EXTERNAL E-MAIL - Do not click links or open attachments unless you recognize the sender.

Normal 0 false false false EN-US X-NONE X-NONE Alex, By odd coincidence, I was just beginning to do a write-up on a new method for truck assignment that we developed to create the official estimates of national truck flows derived from the new FAF5 data. You have correctly observed that there are issues in the way that trucks are treated in a multi-class user equilibrium traffic assignment.  Pre-loading is actually quite popular but is not a good solution for many reasons. For the nationwide FAF analysis for FHWA that treats only a small percentage of the overall traffic stream, a conventional equilibrium model was rejected at the outset as being neither practical nor realistic.  It wasn’t just that we didn’t want to attempt to model all traffic on a national network, it was the recognition that long haul truck traffic does not follow equilibrium routing principles that led us to an alternative approach. Without getting too deep into the weeds, in a multi-class user equilibrium assignment, the overall solution is computed with passenger car equivalents (PCEs) and generalized costs reflecting tolls that vary by class.  Neither the class flows nor the route flows are necessarily unique, which is a most inconvenient problem for toll road analysis and truck assignment.  In multi-class equilibrium assignment, the solution is really defined by the travel times or generalized costs, and the same congested travel times or generalized costs could be achieved by total PCEs and tolls entirely from cars or from varying combinations of cars and trucks of different sizes.  The congested travel times or generalized costs (and total flows) are unique, but the class flows are not.  Moreover, there is no reason why long haul trucks should follow routes dictated by equilibrium conditions such that all utilized routes have equal minimum costs.  There are many reasons for this.  Carriers and owner-operators make routing decisions based on many factors in addition to travel times and toll costs.  Many of these factors are latent and probably not knowable, but these could include time deadlines for shipments, intermediate stops, work rules, location of truck stops, and backhaul considerations. For the FAF work, we chose a discrete route choice model that is applied for each O-D pair.  This is a path-based model with explicit route enumeration.  As many are aware, a k-shortest path process typically generates only minor variations on a route and not significant alternative routes.  To address this, a different route enumeration process was developed that proved to be surprisingly effective.  The routes enumerated are all explicit, viewable on a map, and routes can be edited, deleted, and added.  They also can be validated using appropriate data. When compared against actual truck routes from ATRI’s truck GPS data, the process captured the utilized routes to a surprising degree. The route choice model is a path-size logit model that is based on congested travel times and accounts for route overlaps and tolls. The assigned flows and the select zone/link analyses are all unique and can be flexibly queried.  In theory, other terms such as facility classes could also be added to the utility function, but we have not tested this as yet.  A new national network was developed by Caliper and was tagged with data from HPMS and NPMRDS.  Data from the latter source were used to obtain congested travel times for included links.  The assignment model was tested with data from FAF4 and appeared to work well.  This work was presented in summary form at TRB last year. We are now applying this methodology to the new FAF5 data and making some enhancements along the way.  I believe that this assignment method can be integrated with an overall statewide traffic model that follows equilibrium principles for most traffic and that it should work effectively. I would be happy to supply further details if you wish. Howard

From: Alex Bettinardi To: TMIP Sent: 1/2/2021 10:01 AM Subject: [TMIP] Improving Truck Assignment

I have a transportation assignment question for the wild world as 2020 comes to a close. I'm wondering what ideas / treatments have been applied to try and keep trucks on major freight corridors as opposed to picking an optimal path by simply time, distance, and cost. As background, this is for Oregon's Statewide model, where we assign freight and passenger traffic separately.  Over the years we have tested various weights of distance versus time, but neither really solves the issue.  In either case (distance priority or time priority) there can be odd network configurations where a shorter time or distance path is through a neighborhood versus on the freeway.  So if we shift the priority some sections look better as far as attracting the right amount of freight traffic and some sections look worse.  Shift it again, and different areas look better and different areas look worse.  To be clear, we block links where trucks are not allowed to travel (and this helps), but there are many links where trucks can travel to reach their shipping destination but they are not primary routes, they are just side routes to finalize the last mile of delivery.  But assignment doesn't know that and uses them at the first instance of those routes becoming optimal. We recently had a peer state give us an interesting idea - pre-load the assignment with trucks first, so that trucks make a longer trip length decision without knowledge or the easy ability to shift based on local congestion changes.  This idea was very interesting, but after looking at it more, it seems like that would be problematic for analysis in Oregon.  Specifically as Oregon continues to move forward with tolling analysis.  If trucks see a congestion free network first, they would be the first to jump ship at a policy made bottleneck like a toll.  So where some might expect trucks to be the last vehicles to try and avoid the toll; if they are assigned first, they would likely be the first (most likely) vehicles to re-route around the toll. My current plan/thought is to tag links with national freight highway designation.  Any link tagged as a freight route would see the normal link impedance in assignment (1x).  All links not tagged as a freight route would have impedance multiplied up by something like 2x (would need to play with the multiplier).  This would allow trucks to dodge tolls on other major freight routes, but it would put a high penalty on dodging a toll through a small commercial street.  It would also push the trucks to get on freight corridors as fast as possible and stay there for as long as possible - which I believe would be pretty close to reality.   A long question for the end of a long year.  Please share your experience and thoughts with me.  Many thanks Alex Bettinardi -- Full post: https://tmip.org/content/improving-truck-assignment Manage my subscriptions: https://tmip.org/mailinglist Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526

There may be a bit more to it than a single cost function for all trucks, especially if  fuel consumption and emissions outputs are of interest. First there is the split between articulated and rigid vehicles. Then there is the range of different size categories. Finally there is the split between loaded and unloaded vehicles. Much of this can be gleaned from generic published sources, combined with detailed local vehicles surveys. Geoff Hyman 

-----Original Message----- From: Pedro Camargo To: TMIP Sent: Mon, Jan 4, 2021 4:38 pm Subject: Re: [TMIP] Improving Truck Assignment

Alex, It looks like you have already explored the problem a bit, but I will add my 2c.First of all, pre-loading truck trips sounds like a terrible idea and reminds me of how things used to be done a couple of decades ago, and your concern with policy testing is right on the money.I would submit that going towards a more sophisticated generalized cost function for trucks is definitely the best path, but I would suggest taking a somewhat more sophisticated approach (assuming you have Truck GPS data), and proceed to estimate a route choice model exploring all the variables you may have (distance, free-flow time, congested travel time, road hierarchy, legal restrictions, etc) in order to build or generalized cost function.Depending on your network and the OD pairs in question, treating for path overlap might be needed and you would most likely have to adjust the scale of the final generalized cost function when you bring it back to your multi-class assignment, and while the latter is easy to deal with, the former might be a little more laborious to implement.You can also calibrate a cost function by trial-and-error, but that is both less robust and a lot less fun. If you decide to go that route, I would recommend looking into the truck route choice literature, as you might be able to borrow some parameters from which you can start your exploration.Again, just my 2c.Cheers, PedroOn Sun, Jan 3, 2021 at 1:04 AM Alex Bettinardi < [email protected] > wrote:> I have a transportation assignment question for the wild world as 2020 > comes to a close. > > I'm wondering what ideas / treatments have been applied to try and keep > trucks on major freight corridors as opposed to picking an optimal path by > simply time, distance, and cost. > > As background, this is for Oregon's Statewide model, where we assign > freight and passenger traffic separately. Over the years we have tested > various weights of distance versus time, but neither really solves the > issue. In either case (distance priority or time priority) there can be > odd network configurations where a shorter time or distance path is through > a neighborhood versus on the freeway. So if we shift the priority some > sections look better as far as attracting the right amount of freight > traffic and some sections look worse. Shift it again, and different areas > look better and different areas look worse. To be clear, we block links > where trucks are not allowed to travel (and this helps), but there are many > links where trucks can travel to reach their shipping destination but they > are not primary routes, they are just side routes to finalize the last mile > of delivery. But assignment doesn't know that and uses them at the first > instance of those routes becoming optimal. > > We recently had a peer state give us an interesting idea - pre-load the > assignment with trucks first, so that trucks make a longer trip length > decision without knowledge or the easy ability to shift based on local > congestion changes. This idea was very interesting, but after looking at > it more, it seems like that would be problematic for analysis in Oregon. > Specifically as Oregon continues to move forward with tolling analysis. If > trucks see a congestion free network first, they would be the first to jump > ship at a policy made bottleneck like a toll. So where some might expect > trucks to be the last vehicles to try and avoid the toll; if they are > assigned first, they would likely be the first (most likely) vehicles to > re-route around the toll. > > My current plan/thought is to tag links with national freight highway > designation. Any link tagged as a freight route would see the normal link > impedance in assignment (1x). All links not tagged as a freight route > would have impedance multiplied up by something like 2x (would need to play > with the multiplier). This would allow trucks to dodge tolls on other > major freight routes, but it would put a high penalty on dodging a toll > through a small commercial street. It would also push the trucks to get on > freight corridors as fast as possible and stay there for as long as > possible - which I believe would be pretty close to reality. > > A long question for the end of a long year. Please share your experience > and thoughts with me. Many thanks > > Alex Bettinardi > -- > Full post: https://tmip.org/content/improving-truck-assignment > Manage my subscriptions: https://tmip.org/mailinglist > Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526 >-- Full post: https://tmip.org/content/improving-truck-assignment Manage my subscriptions: https://tmip.org/mailinglist Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526

Obtaining good truck assignments is not an exact science, but there are better and worse ways of doing things. 

Beyond my writings on the subject, mostly describing what others have done, I once led the development the MVFC Freight Model, which gave me a deep appreciation for the difficulties involved.  I would first like to briefly describe the MVFC Freight Model, then say a little about the traffic assignment step. 

This model covered a 10-state area.  It microsimulated freight demand at the shipment level.  Shipments were produced and consumed by establishments, not zones.  Most of these shipments were carried by trucks.  Truck shipments were organized into tours, going from a geographically exact point of production to a geographically exact point of consumption, perhaps spending time at one or more transshipment points.  Traffic assignments were dynamic and multi-class, spanning many days at 1-hour intervals.  Different commodities were placed in different truck classes due to their unique shipment costs.  There was no attempt at equilibrium because passenger cars were not loaded to the network.  Routing was sensitive to costs, and all toll roads and toll bridges in the region were identified.  Rest periods were introduced along the way for the longest hauls. 

So I learned a few things and had some beliefs confirmed: 

  • It is really important to get correct truck values of time.  Many values of time reported in the literature are not accurate. 
  • There is no substitute for a high-level of spatial precision. 
  • Many highway networks, particularly as to local streets, are not very well suited for getting the accurate impedances for trucks.  Tweaks may be necessary. 
  • Many trucks travel directly from the point of production to the point of consumption, but many others do not. 
  • A “truck” model is a big simplification of a “freight” model.  “Truck” models can be quite useful, but their limitations need to be recognized. 

I should mention that the MVFC Freight Model did not use exact establishments outside the 10-state area.  The remaining 38 contiguous states were organized into FAF zone-sized “super-establishments”.  The model simulated all truck traffic in the 48 contiguous US for the selected commodities. 

To answer a separate question, for regional models I would recommend a multi-class, equilibrium traffic assignment, but honestly, I am not sure it makes a heck of a lot of difference. 

There has been so much great feedback on this question from the TMIP community – thank you to all. One quick follow-up question to the bullet points in your response. It sounds like you may have developed a sense for the “correct” value of truck/freight value of time. This is what we are currently using ($39/hr $2010 dollars): https://github.com/tlumip/tlumip/wiki/Traffic-Assignment#link-impedance

Extra lit review - https://github.com/tlumip/tlumip/wiki/CT#observations-on-truck-value-of-...

Would you be willing to share your experience on a good number for freight value of time?

Alex Bettinardi, P.E. 503.986.4104 http://www.oregon.gov/ODOT/Planning/Pages/default.aspx

From: HOROWITZ= [email protected] On Behalf Of ajhorowitz Sent: Wednesday, January 6, 2021 7:47 AM To: TMIP Subject: Re: [TMIP] Improving Truck Assignment

This message was sent from outside the organization. Treat attachments, links and requests with caution. Be conscious of the information you share if you respond.

Obtaining good truck assignments is not an exact science, but there are better and worse ways of doing things.

Beyond my writings on the subject, mostly describing what others have done, I once led the development the MVFC Freight Model, which gave me a deep appreciation for the difficulties involved. I would first like to briefly describe the MVFC Freight Model, then say a little about the traffic assignment step.

This model covered a 10-state area. It microsimulated freight demand at the shipment level. Shipments were produced and consumed by establishments, not zones. Most of these shipments were carried by trucks. Truck shipments were organized into tours, going from a geographically exact point of production to a geographically exact point of consumption, perhaps spending time at one or more transshipment points. Traffic assignments were dynamic and multi-class, spanning many days at 1-hour intervals. Different commodities were placed in different truck classes due to their unique shipment costs. There was no attempt at equilibrium because passenger cars were not loaded to the network. Routing was sensitive to costs, and all toll roads and toll bridges in the region were identified. Rest periods were introduced along the way for the longest hauls.

So I learned a few things and had some beliefs confirmed:

* It is really important to get correct truck values of time. Many values of time reported in the literature are not accurate. * There is no substitute for a high-level of spatial precision. * Many highway networks, particularly as to local streets, are not very well suited for getting the accurate impedances for trucks. Tweaks may be necessary. * Many trucks travel directly from the point of production to the point of consumption, but many others do not. * A “truck” model is a big simplification of a “freight” model. “Truck” models can be quite useful, but their limitations need to be recognized.

I should mention that the MVFC Freight Model did not use exact establishments outside the 10-state area. The remaining 38 contiguous states were organized into FAF zone-sized “super-establishments”. The model simulated all truck traffic in the 48 contiguous US for the selected commodities.

To answer a separate question, for regional models I would recommend a multi-class, equilibrium traffic assignment, but honestly, I am not sure it makes a heck of a lot of difference.

-- Full post: https://tmip.org/content/improving-truck-assignment Manage my subscriptions: https://tmip.org/mailinglist Stop emails for this post: https://tmip.org/mailinglist/unsubscribe/13526

I wanted to quickly share this summary wiki page I have been building with all the great feedback on this question. If you happen to review it and feel I am missing any guidance please let me know and I will add any missing pieces in.

https://github.com/tlumip/tlumip/wiki/Truck-Assignment-Record-of-Discussion

Thank you again

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Truck Assignment Based in Performace

Truck Assignment Based in Performace

These software algorithms work with variables as route length, loading mime, hauling time under certain parameters of ore quality and quantity. Based over this information they optimize the variables and assign more or less trucks to a certain face regardless of the truck (as independent unit) performance. Truck Performance We can define the truck performance as the capability of the truck to haul material between two or more points efficiently using all their own mechanical functions and characteristics.

In order to understand this concept we should notice that two trucks, with the same characteristics and age, can have different reduction rates over the same route; that difference in their production rate should be address to some factors as their maintenance history (which affect their reliability), accidents and drivers ability. Moreover, these differences could be bigger if we have a fleet composed by trucks from different models and makers. Objectives The objective of this research project is to improve the haul efficiency and reducing cost by develop a tool that can be a complement for the Dispatch@or Jigsaw@ software .

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Without paying upfront

This tool will select the best trucks, base in their performance, mongo the fleet in order to be assigned to the active faces. Methodology Based in the huge amount of information registered by the Dispatch@ original@ software in the mine data warehouse is possible to use this information to find performance patterns, that help us to predict the outcome of some situations and giving us the possibility to analyze and change them. In order to achieve this, the data should be select and process from the data warehouse using data mining tools. The steps in the process to develop this tool are : 1.

Data acquisition : The data will be acquire using data mining from Dispatch@ earwigs@ database. The data to be collected should describe the code of the truck (model, maker, mine ID) and haul time from any load face to any destination (e. G. Crusher, stockpile,dumpster). 2. Database develop : A new data base has to be develop which associate to each truck a time for a “route”. The number of “routes” will depend of the number of load faces and destinations. Once the “routes” are defined the time that a truck needs to complete a “route” can be calculated from the values in the main database using statistics.

This time alee will be assigned to the “route” and to the truck. 3. Data processing : Using ANN and based upon production objectives for each load face as output we can determine the best truck combination to be assign to each load face. Evaluation The project objectives has been achieved if we use less trucks to reach the production quotes, which means a reduction in the hauling cost and increase of efficiency . In order to improve this tool it has to be capable to be updated also, as a future development we can mix the performance and cost information per truck and use it to assign trucks.

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Truck Wheels Expert LLC is a top dispatching agency in North America, providing specialized dispatch services for dry van, reefer, car haulers, and towing companies. Our exceptional overnight dispatch services offer workforce solutions for businesses of all scales, ultimately reducing operating expenses and enhancing expandability. Opt for Truck Wheels Expert for dependable, streamlined, and budget-friendly dispatch solutions.

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• have an mc number or at least three months, • have an equipment we work with , • ready to travel interstate, apply:  using our carrier sign up form or by phone call: +1 307 225 6685, prepare the necessary documents: •w9 form (request for taxpayer identification number and certification) • insurance (certificate with liability cargo policies with us listed as a certificate holder)., sign the dispatch agreement. it is the basis for our services that comes along with limited poa., it gives us a right to represent the customer’s company on its behalf among different people., we are all set. let’s get to work., benefits with our dispatching services.

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Our company, SZ Hauling, and Truck Wheels Expert has been with us from the start. They've been a great help to our startup, teaching us how to be successful in the industry. Jessica and her team are quick to respond and solve problems, so I can focus on making money with peace of mind.

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Utilizing the dispatching services offered by Truck Wheels Expert has proven to be transformative for our trucking business. The team exhibits reliability, efficiency, and constant availability in managing our load assignments. Our collaboration with Truck Wheels Expert has resulted in streamlined operations and punctual deliveries. We strongly recommend their services.

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AVOID THIS COMPANY AT ALL COSTS!!!!!! SCAMMERS!!!!!!!!

SCAMMERS!!!!!!!! Took my money, sent me a piece of work that was not even in line with the assignment and did not match the brief what I had sent them in anyway and then threatened me multiple times saying they were going to contact my uni to see if I have used the work (universities can’t share your work with anyone anyway) told me their ‘refund process’ takes 30-60 days and it’s no shock that we are now past that time frame and I have tried to contact them but been IGNORED. They have kept my money and not refunded me all for a service which I did not receive and / or use!!!!!!

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Auto-Alliance

  • Agidel Auto

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Auto-Alliance is one of the largest importer and supplier of automotive spare parts in Russia. The assortment of the company is developing in the areas of passenger and commercial cars, trucks, buses, special vehicle, as well as auto chemical goods, car accessories and tools.

Auto-Alliance is an integrated approach in business with its partners providing efficiency, flexibility and high quality of collaboration.

Head office in Lyubertsy, Moscow Region

  • 13 wholesale stores
  • 234 direct contracts with leading manufacturers
  • 2,500 employees
  • 11,000 customers 
  • Over 100,000 m2 total warehouse area
  • 190,000 assortment items in stock
  • Retail Distribution Network
  • Certified service station "KAMAZ"
  • NEXUS AUTOMOTIVE RUSSIA Dezhnev drive, 1, BC "Dezhnev Plaza", 9 floor, office 906 Moscow, 141 006 +7 (495) 960-70-27 [email protected]
  • © 2018 «NEXUS AUTOMOTIVE RUSSIA» Sitemap

IMAGES

  1. Your truck overview at the warehouse

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  2. TEXA Dealer Level Truck Diagnostic Scanner Tool with Laptop

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  3. Orientation Ends & Truck Assignment begins!!

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  5. Truck Factoring: Everything You Need to Know

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  6. ⇉Truck Assignment Based in Performace Essay Example

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VIDEO

  1. Truck 24 running a call to Neffsville Local

  2. Truck and Logistics Simulator

COMMENTS

  1. Optimizing truck sequencing and truck dock assignment in a cross docking system

    Miao, Lim, and Ma (2009) consider a truck dock assignment problem within a time window, operational time and capacity constraint. If some trucks cannot be assigned due to the limited number of docks and are consequently delayed, a penalty cost is incurred for all the unfulfilled cargo shipments that should be made by these trucks.

  2. Dock assignment and truck scheduling problem ...

    We study the problem of truck scheduling and dock assignment in the presence of resource constraints. In the absence of a closed-form (or well-defined) linear formulation describing the processing times as a function of resources, expert' knowledge has been mobilized to enable modelling of the problem as an integer linear model.

  3. Applying an adaptive tabu search algorithm to optimize truck-dock

    As mentioned before, our proposed truck-dock assignment problem is NP-hard, the artificial intelligence tool, such as genetic algorithm, tabu search, simulated annealing and so on, should be a good approach to obtain good-quality solutions efficiently (Li et al., 2012, Liao et al., 2013, Lin et al., 2011, Miao et al., 2009).In order to develop ATS to solve this problem, we need to formulate it ...

  4. Improving Truck Assignment

    Alex, first off, modeled trucks routing through neighborhoods is a potential diagnostic of network and/or assignment problems, along with whether car volumes are also o verloading those neighborhoods. Secondly, most pre-load assignment schemes date back to when modelers had to assign with HOV lanes before the software packages caught on to multi-class equilibrium.

  5. Capacity Optimization Tool Automates Truck Assignment

    Fleet Enable launched Capacity Optimization, an artificial intelligence (AI) tool that loads final-mile delivery trucks to eliminate shipment failures. The software calculates cargo size and truck capacity, then dictates how orders are stowed in vehicles. " Fleet Enable's primary mission is to automate every aspect of the final-mile delivery, and we determined a void in the market for auto ...

  6. Truck to door assignment in a shared cross-dock under uncertainty

    Miao et al., 2014 Miao Z., Cai S., Xu D., Applying an adaptive tabu search algorithm to optimize truck-dock assignment in the crossdock management system, Expert Systems with Applications 41 (1) (2014) 16 - 22. Google Scholar

  7. Answer in Python for gaurav #350992

    1. Class Vehicle with a parameterized function Fare, that takes input value as fare and. returns it to calling Objects. 2. Create five separate variables Bus, Car, Train, Truck and Ship that call the Fare. function. 3. Use a third variable TotalFare to store the sum of fare for each Vehicle Type. 4.

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    ALL Answered. Question #350996. Python. Create a method named check_angles. The sum of a triangle's three angles should return True if the sum is equal to 180, and False otherwise. The method should print whether the angles belong to a triangle or not. 11.1 Write methods to verify if the triangle is an acute triangle or obtuse triangle.

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    TENSO-M is a leading Russian developer and manufacturer of industrial weighing equipment. Since 1990, we have been producing products that allow our customers to keep accurate weight records and develop their business. 32 years we are Number 1 in Russia. With more than 400 employees we produce 30 000 load cells and 3 000 scales, batchers and ...

  12. NN GLOBAL TRUCK RUS LLC

    Find company research, competitor information, contact details & financial data for NN GLOBAL TRUCK RUS LLC of Lyubertsy, Moscow region. Get the latest business insights from Dun & Bradstreet.

  13. Truck Assignment Based in Performace

    The number of "routes" will depend of the number of load faces and destinations. Once the "routes" are defined the time that a truck needs to complete a "route" can be calculated from the values in the main database using statistics. This time alee will be assigned to the "route" and to the truck. 3. Data processing : Using ANN ...

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    We're ready to take your call 24/7+1 (251) 332 2250. Truck Wheels Expert is a leading dispatching agency in North America, offering dedicated dispatch services for dry van, reefer, car haulers, and towing companies.

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  18. Applying an adaptive tabu search algorithm to optimize truck-dock

    We study the problem of truck scheduling and dock assignment in the presence of resource constraints. In the absence of a closed-form (or well-defined) linear formulation describing the processing times as a function of resources, expert' knowledge has been mobilized to enable modelling of the problem as an integer linear model.

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  20. Auto-Alliance

    Auto-Alliance is one of the largest importer and supplier of automotive spare parts in Russia. The assortment of the company is developing in the areas of passenger and commercial cars, trucks, buses, special vehicle, as well as auto chemical goods, car accessories and tools. Auto-Alliance is an integrated approach in business with its partners ...

  21. Optimizing truck sequencing and truck dock assignment in a cross

    Expert Systems with Applications. Volume 40, Issue 14, 15 October 2013, Pages 5532-5541. ... Binary Variable If we relax the destination assignment of trucks in the proposed model, the problem reduces to a truck scheduling problem, which has been proved to be NP-hard (Kuo, 2013). Thus, the proposed model is also an NP-Hard problem and it can ...