Establish most effective module transportation maximum size and weight
The second key modularization method that will improve the capital efficiency of your project is to Establish most effective module transportation maximum size and weight.
A key factor for maximizing modular designs is to assure that the module envelop size and weight is established as soon as possible. Often projects can delay the logistics study required to determine these parameters until later phases in project execution. Initial logistic studies may identify constraints which limit these parameters. These “pinch points” can often be eliminated increasing the transportation envelop with minimal cost.
Access to waterways, roads and railways becomes a huge factor in determining module sizes. Plants that are land-locked will have road restrictions that will limit size-based jurisdiction restrictions. Consideration for the development of high load corridors and module offloading facilities could reduce the impacts of the constraints.
Effective collaboration between the logistics group (supply chain), engineering and construction is required in order to fully understand the logistics required for modularization. Challenging the status quo and looking at alternative options will be required. After the logistics study, your project can determine the module type that can be used on your project. Below are some examples of module types that should be considered:
- Very Large Modules (VLM) is a module that weighs over 600 tons and can weigh up to 6000 plus tons. The mode of transportation is by Heavy Transport Vessel (HTV) and / or barge.
- Large Modules (LM) is a module that weighs more than 100 tons, but less than 600 tons. The maximum weight of a module which can be lifted using conventional rigging methods is 600 to 800 tons. The mode of transportation is by ship or barge.
- Truckable Modules is a module that weighs from 60 to 160 tons and are smaller modules that can be transported by road. Maximum allowable load size will depend on which country the load is being road hauled and will also vary from state to state within that country.
- Rail Modules are smaller modules that can be transported by rail. They are similar to truckable modules but have different transportation forces.