The content of this help page provides the basis for the calculation of the default model activity-specific Per Mile Costs. Users considering overriding costs calculated by the model may find it helpful to first review this framework.

Basic Force

Breakdown of the Per Mile Cost of Basic Force (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit costs, as shown below. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs into the Override field for each tie type.

 Rail Replacement

Breakdown of the Per Mile Cost of Rail Replacement (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Rail Replacement into the Override field for each tie type.

Rail Transposing

Breakdown of the Per Mile Cost of Rail Transposing (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Rail Replacement into the Override field for each tie type.

Tie Installation

Breakdown of the Per Mile Cost of Tie Installation (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Tie Installation into the Override field for each tie type.

Concrete Tie Repair

Breakdown of the Per Mile Cost of Concrete Tie Repair for 100% of the concrete ties in a mile (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs and the percentage of ties experiencing rail seat abrasion. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Concrete Tie Repair into the Override field.

Surfacing

Breakdown of the Per Mile Cost of Surfacing the track (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Surfacing into the Override field for each tie type.

Undercutting

Breakdown of the Per Mile Cost of Undercutting the track (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Undercutting into the Override field for each tie type.

Rail Grinding

Breakdown of the Per Mile Cost of Grinding the rail (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Rail Grinding into the Override field for each tie type.

Gaging

Breakdown of the Per Mile Cost of Gaging the entire mile of wood tie track (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Gaging into the Override field.

Anchor Adjustment

Breakdown of the Per Mile Cost of Anchor Adjustment for the entire mile of wood tie track (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for Anchor Adjustment into the Override field.

Fuel Usage

Breakdown of the per mile cost of Fuel (with default values for all user inputs). The Calculated costs are determined by the model based on relevant fuel costs and specific locomotive characteristics and traffic for the track segment for each tie type. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs into the Override field for each tie type.

Derailment

Breakdown of the Per Mile Cost of Repairing an entire mile of track after a derailment (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for repair due to a derailment into the Override field for each tie type.

Conversion to Alternate Ties

Breakdown of the Per Mile Cost of Converting an entire mile of track from wood ties to an alternate tie material (with default values for all user inputs). The Calculated costs are determined by the model based on relevant unit material, labor and equipment costs. Note that the Calculated costs for this activity are subject to change as the user revises the model inputs to non-default values. The Calculated cost can be overridden by the user by inputting the user's specific costs for converting the track into the Override field for each tie type.

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