SAS Code Spatial Optimization of Supply Chain Network for Nitrogen Based Fertilizer in North America, by type, by mode of transportation, per county, for all major crops, Proc OptModel

Published: 23 January 2023| Version 1 | DOI: 10.17632/ft8c9x894n.1
Contributor:
Sumadhur Shakya

Description

SAS Code for Spatial Optimization of Supply Chain Network for Nitrogen Based Fertilizer in North America, by type, by mode of transportation, per county, for all major crops, using Proc OptModel. the code specifies set of random values to run the mixed integer stochastic spatial optimization model repeatedly and collect results for each simulation that are then compiled and exported to be projected in GIS (geographic information systems). Certain supply nodes (fertilizer plants) are specified to work at either 70 percent of their capacities or more. Capacities for nodes of supply (fertilizer plants), demand (county centroids), transhipment nodes (transfer points-mode may change), and actual distance travelled are specified over arcs.

Files

Steps to reproduce

data for nodes of supply (production points) and demand (consumption points) nodes can be replaced as desired. Origination destination (OD) matrix can be replaced with appropriate costs. the model can then be run once to check for errors and solve the model completely before running for multiple iterations (as in the code).

Institutions

North Dakota State University, California State University Monterey Bay

Categories

Fertilizer, Transportation Economics, Constrained Optimization, Network Optimization, Mixed Integer Programming, Logistics, Spatial Analysis, Supply Chain Network, Transportation Demand, Statistical Analysis

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