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by: Louie Hansen


Louie Hansen
GPA 3.87

Christopher Monsere

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Christopher Monsere
Class Notes
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This 2 page Class Notes was uploaded by Louie Hansen on Tuesday September 1, 2015. The Class Notes belongs to CE 454 at Portland State University taught by Christopher Monsere in Fall. Since its upload, it has received 38 views. For similar materials see /class/168213/ce-454-portland-state-university in Civil Engineering at Portland State University.

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Date Created: 09/01/15
CE 454 Urban Transportation Systems Portland State University Department of Civil and Environmental Engineering Fall Quarter 2008 Assigned 112408 Due 12108 HAPPY THlNKKGVING N Urban Transportation You are given a simple representation of network below note it is slightly different than the network shown in class lecture notes The values on the links indicate the length or cost between each node pair Pay attention to the arrows on each arc link indicating the direction of allowable ow You are also given the origindestination matrix representing the demand between from all nodes to all nodes 4 2 1 1quot m m l v a 8 1101 3 b 1 T k 5 45 3c Construct using Dijsktra s algorithm the set of skim trees which is the shortest path from each of the ve nodes to all other nodes this should be a set of shortest path networks from each node Show the allornothing assignment on each skim tree Show the nal assignment of the entire OD matrix on the network For node 3 write the mathematical program to solve for the shortest path from node 3 to all other nodes Be speci c and include the objective function and all constraints Set up and solve this optimization problem in Excel using solver The spreadsheet format on the class website may be helpful but you can construct your program E 996 D Firm Alpha manufactures nished products which it places in a shipping crate then ships them by truck to the nal destinations The product is shipped in an 8 cubic foot crate weighing 40 lbs Firm Alpha ships 50400 lbs of the product per week The cargo weight capacity oftheir existing truck is 20000 lbs and the volume capacity is 206 cubic feet Assuming only the one type of truck is available how many trucks does the rm dispatch each week if trucks are lled to capacity Would you make any suggestions to the rm on vehicle choice Portland State University lof2 3 A 5000 unit container ship is set to call on the Port of Portland in the upcoming weeks Only 50 of its capacity is to be loaded on at Portland All of the containers to be loaded are 40 foot long by 8 feet wide and 8 feet high The Port plans to stack all of the containers to be loaded in waiting areas The containers can be stacked 4 high and no more than 4 deep in any direction width or length so that the top pick wheel loader can reach all containers The top pick wheel loader needs a minimum lane width of 60 feet intemally between stacks and 30 feet paved width on external paths those that are not between stacks a What is the unit we use to measure the size of container ships b What is the definition of this unit c Assuming the maximum number of containers HXWXL for each stack how many stacks are needed to store all of the containers to be loaded on the container ship d Sketch out your diagram of one stack including the dimensions of necessary lane width e How many acres will be needed to store all the containers for the ship 43560 square feet in one acre 4 Please complete the table a summary of various transportation modes that transport freight way provided by commodity rank public or transported l private high low Urban Transportation 2 of 2 Portland State University


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