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Life Cycle Events
The following controls are located on the Input -> Life Cycle Page.
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This page is used to define the series of construction events that will model the project’s life cycle, along with the activities (adding layers and removing material), materials and lastly construction equipment. Each event is a row in the Life Cycle grid. The data in the other three grids are associated with the selected event (shown in yellow). They constitute the details of the event.
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A Life Cycle Event is defined by a user supplied Description (e.g., First Maintenance) for the event, the date of the event and the service life of the activities performed for the event. In addition, a selection for the Use Stage Roughness Equation can be made to indicate to eLCAP to: (1) include a Use Stage from the selected construction event to the next construction event, and (2) a treatment selection that is representative of the activities for the event.
When a life cycle event is added, the activities, materials, and equipment grids will be empty. eLCAP uses a default duration of 10 years between successive events to assist in constructing a life cycle. Users can edit the dates as necessary.
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The following discusses each control associated with defining the life cycle of a pavement project. Each row in the grid is a single construction event; a Use Stage can be included between successive construction events by making a selection for the Use Stage Roughness Equation.
1.This button saves the project data to the eLCAP database. Navigating to the Analysis & Results page does an automatic save to the database.
2.This button saves the project data to a file that can be saved on the local computer.
3.This control shows the currently loaded project.
4.This control shows the currently loaded trial for the project.
5.Supply the number of analysis years.
6.This is computed by eLCAP by adding the Analysis Period to the date of the first event.
7.This dropdown control allows you to select a specific Electricity model (mix) to be used in any process that has electricity as an input flow. The list of Electricity models includes all Library models and any user defined Electricity models. A selection of "Not Specified" (this is the default) will not make any changes to what has been defined for the various Library models needing electricity.
8.The percent growth in Traffic is applied to traffic counts from the first event onward.
9.Supply a description that represents the activities performed in the event.
10.Supply a Date for the event.
11.Supply a Service Life for the event that represents the expected useful life of the activities performed during the event.
12.This checkbox (checked by default) permits you to remove events from the analysis without having to delete them.
The question mark in the blue circle in the upper-right of the control group allows you to get help on the controls (this topic).
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