There has been some confusion between how the .x30 criteria works when dealing with Clear Zone and/or Recoverable Slopes. This section of the Knucklehead's Guide will attempt to clear things up. A couple of important things to remember:
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In this example the criteria has been asked to simply examine the clear zone on the right side of centerline. With the clear zone recovery fill distance value being set greater than 0, the clear zone criteria is triggered. The redefinable variables were set as follows: _d_ClrZoneRecovFillDist = 14 _d_ClearZoneFillSlope = 1:6 The results are simply a label pointing to each slope that is in conflict with the redefinable variable settings. |
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In this example the criteria has been run using the default values. Specifically, the right recoverable slope distance remained set to 0. The redefinable variables were set as follows: _d_ShoulderForeSlope = 1:3 _s_RecoverableShoulderForeSlope = ^yes^ _d_RtRecoverableSlopeDist = 0 _d_RtRecoverableSlope = -1:4 The results are simply a shoulder foreslope of 1:3 and the fill slope was taken from the slopes tables. Because the right recoverable slope distance was set to 0, nothing special was done. |
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In this example the criteria has been run with the right recoverable slope distance set to 14. With this value being set greater than 0, the recoverable slope criteria is triggered. The redefinable variables were set as follows: _d_ShoulderForeSlope = 1:3 _s_RecoverableShoulderForeSlope = ^yes^ _d_RtRecoverableSlopeDist = 14 _d_RtRecoverableSlope = -1:4 The results are an adjusted shoulder foreslope of 1:4 and an adjusted fill slope of 1:4 within the 14'. The fill slope beyond the 14' was taken from the slopes tables. |
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In this example the criteria has been run with the right recoverable slope distance set to 14. With this value being set greater than 0, the recoverable slope criteria is triggered. This example also has the secondary slope set to a value greater than 0:0, thus triggering the secondary slope criteria. The redefinable variables were set as follows: _d_ShoulderForeSlope = 1:3 _s_RecoverableShoulderForeSlope = ^yes^ _d_RtRecoverableSlopeDist = 14 _d_RtRecoverableSlope = -1:4 _d_RtSecondarySlope = -1:3 The results are an adjusted shoulder foreslope of 1:4, an adjusted fill slope of 1:4 within the 14', and an adjusted secondary fill slope beyond the 14', set to -1:3. |
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In this example the criteria has been asked to simply examine the clear zone on the left side of centerline. With the clear zone recovery cut distance value being set greater than 0, the clear zone criteria is triggered. The redefinable variables were set as follows: _d_ClrZoneRecovCutDist = 10 _d_ClearZoneCutSlope = 1:6 The results are simply a label pointing to each slope that is in conflict with the redefinable variable settings. Notice that since the clear zone recoverable cut distance was set to 10, even the cut slope is in conflict, since the cut slope falls beyond the 9.2' distance to the bottom of the ditch and the criteria is being asked to look 10' past the edge of the shoulder. |
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In this example the criteria has been asked to simply examine the clear zone on the left side of centerline. With the clear zone recovery cut distance value being set greater than 0, the clear zone criteria is triggered. The redefinable variables were set as follows: _d_ClrZoneRecovCutDist = 9 _d_ClearZoneCutSlope = 1:6 The results are simply a label pointing to each slope that is in conflict with the redefinable variable settings. Notice that since the clear zone recoverable cut distance was set to 9, the cut slope is ignored even though it is steeper than the clear zone cut slope value of 1:6. Since the cut slope falls beyond the 9.2' distance to the bottom of the ditch and the criteria is being asked to only look 9' past the edge of the shoulder, it is invisible to the criteria. |
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In this example the criteria has been run with the left recoverable slope distance set to 14. With this value being set greater than 0, the recoverable slope criteria is triggered. The redefinable variables were set as follows: _d_ShoulderForeSlope = 1:3 _s_RecoverableShoulderForeSlope = ^yes^ _d_LtRecoverableSlopeDist = 14 _d_LtRecoverableSlope = -1:6 The results are an adjusted shoulder foreslope of 1:6 and an adjusted widened slope of 1:6 to the extent of the recoverable slope distance (shown here as 14'). The actual ditch slope starts at the end of the recoverable slope using the left ditch foreslope slope variable value. NOTE: A secondary recoverable slope is not available in cut slope conditions. |
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