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For large or finely [discretized|kb:Discretization] models, [influence-based moving-load|kb:Influence-based moving-load analysis] analysis may become time consuming. While this level of detail may be suitable for final analysis, a series of tips, possibly useful to preliminary design, are available to reduce computational time,.

These suggestions are listed as follows:

* Reduce the number of members for which response is computed by specifying groups smaller than All on the Moving Load Case Results Saved menu (Figure 1), available through Define > Bridge Loads > Bridge Responses _or_ Bridge > Bridge Response.

* Use a coarser [lane|kb:Lane] [discretization|kb:Discretization].

* Use the Quick Response Calculation option, which uses a limited number of [lane-load points|kb:Lane-load point] to approximate the shape of the influence line. Additional information is available in the {new-tab-link:http://www.csiberkeley.com/}CSI{new-tab-link} [_Analysis Reference Manual_|doc:CSI Analysis Reference Manual] (Moving Load Analysis > Exact and Quick Response Calculation, page 463).

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!Moving_load_case_results_saved_-_reducing_computaional_time.png|align=center,border=0!

{center-text}Figure 1 - Moving load-case results saved{center-text}


h1. See Also

* [Hardware influence on performance|kb:Hardware influence on performance]