Volume discounts on shipping costs

Discussion created by swg318 on Feb 13, 2012
I am going to be performing a routing problem using Network Analyst which looks at rail costs from multiple points across Canada, which solves for the quickest, more cost efficienct routes to either location west port or location east port. I am wondering if I will be able to account for discounted rates of rail if the dispatcher of rail is using multiple rail cars. How can I account in Network Analyst as a producers increases the order of rail cars, the rail firm cuts discounts on large car orders?