The depreciation schedule provides for the depreciation of each component of the railway owner’s asset base and is used to determine the depreciated optimised replacement costs and updates to the regulatory asset base. File Attachment Expand All | Collapse All Depreciation Schedule Document Arc Infrastructure Depreciation Schedule 0.88 MB 16 Jun 2025 Main navigation Arc Infrastructure Access proposals 2002 Access Proposal by Portman Iron Ore Ltd 2013 Access Proposal by Co-operative Bulk Handling Ltd Costing principles Depreciation schedule Initial regulatory asset base Overpayment rules Segregation arrangements Standard access provisions Total and incremental costs Train management guidelines Train path policy