File Name: tmplt01.cri, tmplt02.cri ...

Reference Standard No. : N/A

Required Definition Files: standard

Summary

When running criteria, GEOPAK automatically plots the superelevation shape mosaic on each cross section cell. This drawn shape is fully adequate when the typical section is new location, full depth pavement with standard superelevation. However, when the typical section requires widening of existing pavement and or varying cross slopes for curb and gutter grades, the operational GEOPAK shape mosaic can become very complicated and laborious to define. For example, in a widening section, should the designer input shapes on both sides of the existing pavement that follow along the irregular existing edge?

The template (tmplt) series criteria is designed to eliminate these problems by drawing the pavement surfaces and subgrades in place of or over the GEOPAK shape. The tmplt series criteria files are capable of drawing templates for several widening. Some of these configurations use the shape to determine cross slopes and elevations, while others use only the boundaries of the shape to locate the horizontal location of the travel lane. The various configurations are discussed in detail in the following sections of this manual.

To avoid confusion in determining when to use template criteria, the criteria library is designed assuming and requiring that template criteria will be used exclusively to replace the GEOPAK shape mosaic.

User Defined Variables

"TM01 CONFIG"

This variable specifies the desired configuration type.
The default value is 0.
See Template Configuration Types.

"TM01 NORMAL CROWN"

Normal crown is defined as a positive ratio (NOT percentage). Valid definitions could be "0.02", "0.025", "0.208" Etc. The normal crown value is used by the shoulder criteria in computing rollover slope values.
The default definition is "0.02"

"TM01 SKEW EFFECTS" New!

This variable determines if the skew effects of the proposed cross section template is considered. When defined as 1, the cross section proposed templates will considered the skew angle of the Geopak shapes and draw it accurately with a skew. Design elements normally outside of proposed EOT are affected by the skew effect. These design elements may include shoulder width, berm width, curb and gutter dimensions, and all slopes. Note that the skew effects only implies and only is applicable when the angle of the Geopak shape sides are not same.
Default definition = 0.

The default definition is taken from the global variable SKEW EFFECTS.

Example:

DEFINE "TM01 SKEW EFFECTS" 1

"TM01 DRAW MCI" New!

Switch to draw the concrete islands. Define as 0 to not draw the concrete islands. Define as 1 to draw concrete islands in the XSC file.
Default definition = 0.

Example:

DEFINE "TM01 DRAW MCI" 1

"TM01 MCI KEYED IN DEPTH" New!

Defined, in inches, if the concrete island is Surface Mounted (Default depth of 0) or Keyed In (depth value greater than 0). This also affects the level the concrete islands are drawn in the XSC. If a keyed in depth is define to be any value greater than zero, then the concrete island is drawn on level "Prop Conc 5in Monolithic Keyed In Island". Else, it will be drawn on level "Prop Conc 5in Monolithic Surface Mount Island". Also affected is the way the proposed
pavement is drawn.
Default definition = 0.

Example:

DEFINE "TM01 MCI KEYED IN DEPTH" 1.5

Surface Mounted

Keyed In

DEFINE_DGN "CONCRETE ISLAND" New!

Define DGN statement to tell Criteria in what file and what level the concrete island shape is on.

Example:

DEFINE_DGN "CONCRETE ISLAND"\
DGN = R:\Roadway\Proj\R2007_rdy_dsn.dgn\
LVNAME = Prop Conc 5in Monolithic Keyed In Island

"EOP IN XSC"

This variable specifies whether the edge of existing pavement elements are located in a plan view file or were previously drawn in the cross section cells. When defined as non-zero, the elements are assumed to be found in the cross section cells.

The default value is 1.

"EXIST DGN EOP"

This variable is defined via the DEFINE_DGN statement, and specifies the symbology of existing edge of pavement elements in a plan view file. The criteria will reference this variable only when the "EOP IN XSC" variable is defined as 0.

"EXIST XSC EOP"

This variable is defined via the DEFINE_DGN statement, and specifies the symbology of existing edge of pavement elements in the cross section file. The criteria will reference this variable only when the "EOP IN XSC" variable is defined as 1.

"TM01 EOP SEARCH RANGE"

This variable defines the maximum distance from the edge of the shape that the template criteria will search for the edge of an existing pavement as defined by "EXIST DGN EOP" or by "EXIST XSC EOP" This variable is used only by widening configurations. The default value is 24 feet.

"TM01 SUBGRADE LEFT"
"TM01 SUBGRADE RIGHT"

These variables allow selective exclusion of the subgrade earthwork lines on either the left, right or both sides of a widening template by defining the value to zero. For example, if the left side of a widening template will not have shoulder or any other subsequent criteria included, and no subgrade earthwork lines are desired, define "TM01 SUBGRADE LEFT" as 0.

"TM01 RESURFACE DEPTH"

This variable is used only by configurations that use the existing pavement to determine profile grade elevation. It is defined as the desired resurfacing depth. Define as meters or inches.

The default value is the same as the "RESURFACE DEPTH" variable.

"TM01 PAVEMENT DEPTH"
"TM01 BITUMINOUS DEPTH"
"TM01 AGGREGATE DEPTH"

Local variable TM01 PAVEMENT DEPTH is defined as the total depth of the proposed pavement, as meters or inches. The default value is the same as the global "PAVEMENT DEPTH" variable. Note that the default value for PAVEMENT DEPTH is defined to a ridiculously high value, to alert the user when a proper definition is not provided.

Local variables TM01 BITUMINOUS DEPTH and TM01 AGGREGATE DEPTH are defined as the design depth of bituminous pavements and aggregate base. Definition of these variables is not required. If left to their default value of 0, the criteria will ignore them and use the PAVEMENT DEPTH variable alone.

The purpose of the BITUMINOUS DEPTH and AGGREGATE DEPTH variables is to allow for proper drawing of pavement edge slopes. This is only important when the engineer desires to use these slopes elements to compute shoulder borrow quantities.

"TM01 APPLY SUBGRADE ADJUSTMENT"
"TM01 SUBGRADE ADJUSTMENT"

The SubGrade Adjustment feature provides the option of designing for future pavement (grading projects). Define SUBGRADE ADJUSTMENT as the depth at which the subgrade is to be adjusted over the future elevation.

SubGrade Adjustment can be used only with template configuration 0. APPLY SUBGRADE ADJUSTMENT must be defined as non-zero for the criteria to actually use the adjustment value.

"TM01 USE SUPER LABELING"

When defined as non-zero, this variable will cause the criteria to label the superelevation slope. The slope text is centered on each shape segment. The default definition is 1.

"TM01 USE SUPER BARGRAPH"
"TM01 SUPER VERTICAL OFFSET"
"TM01 SUPER LEADER LENGTH"

When defined as non-zero, the variable USE SUPER BARGRAPH will cause the criteria to represent the superelevation slopes in a graphic format as illustrated below. Use of this feature is not advisable when the shape clusters may contain shapes with widths less than 4 feet (or metric equivalent).

SUPER VERTICAL OFFSET default value is 14 feet or metric equivalent.
SUPER LEADER LENGTH default value is 4 feet or metric equivalent.

"TM01 SUPER TEXT HEIGHT"
"TM01 SUPER TEXT WIDTH"

These variables control the width and height of the superelevation labeling text. The default definitions are designed for optimum fit with narrow shapes in mind.

The following variables are local versions of global variables. They define standard level/symbology values that should usually remain static. These variables are listed here for documentation and thereby make them available for pre-definition over-rides.

"TM01 PAVEMENT LEVEL" local version of "PAVEMENT LEVEL"
"TM01 PAVEMENT WEIGHT" local version of "PAVEMENT WEIGHT"
"TM01 PAVEMENT COLOR" local version of "PAVEMENT COLOR"
"TM01 PAVEMENT STYLE" local version of "PAVEMENT STYLE"
"TM01 EARTHWORK LEVEL" local version of "EARTHWORK LEVEL"
"TM01 EARTHWORK COLOR" local version of "EARTHWORK COLOR"
"TM01 EARTHWORK WEIGHT" local version of "EARTHWORK WEIGHT"
"TM01 EARTHWORK STYLE" local version of "EARTHWORK STYLE"
"TM01 OPTION LEVEL 1" local version of "OPTION LEVEL 1"

Type 0 : Standard, Non-Widening Templates

Template configuration 0 redraws the GEOPAK shape precisely. The subgrade earthwork elements are drawn parallel to the template at the depth defined by "TM* PAVEMENT DEPTH".

An assumption is made that type 0 templates will always be employed on both sides of a shape cluster, otherwise results are unpredictable.

Type 1: Widening Template using elevation and slope of existing pavement.

Template configuration 1 draws a widening template. The elevation at the edge of existing pavement is adjusted by the value of "TM* RESURFACE DEPTH" and used as profile grade elevation. The cross slope of the template is matched to the slope of the existing pavement at the edge of the existing pavement.

The type 1 template is drawn from the edge of the existing pavement out to the boundary of the shape as a single straight line segment, disregarding any slope breaks that may be present in the shape.

The designer should note that, when planning to use Type 1 configuration templates, the elevations and cross slopes of the GEOPAK shape will be ignored by the template criteria. Only the horizontal location of the boundary of the shape is used. Therefore, the designer has the option of creating "dummy" shapes with no consideration of superelevation using "ballpark" profile grades.

The subgrade earthwork element of the template is drawn parallel to the template at a depth defined by "TM* PAVEMENT DEPTH", and connected vertically to the existing ground element at the horizontal location of the edge of existing pavement.

Type 1 templates can be used on one or both sides of a shape cluster. However, the designer should always verify the accuracy and viability of the results when using type 1 template only on one side of a shape cluster.

Type 2: Widening Template using elevation of existing pavement, and cross slopes of the GEOPAK shape.

Template configuration 2 draws a widening template. The elevation at the edge of existing pavement is adjusted by the value of "TM* RESURFACE DEPTH" and used as profile grade elevation. The cross slopes of the template are matched to the GEOPAK shape.

The type 2 template is drawn from the edge of the existing pavement out to the boundary of the shape. All slope breaks present in the shape, outside the existing pavement are reflected in the slopes segments of the template.

The designer should note that, when planning to use Type 2 configuration templates, the elevations of the GEOPAK shape will be ignored by the template criteria. Therefore, the designer has the option of creating shapes using "ballpark" profile grades.

The subgrade earthwork elements of the template are drawn parallel to the template at a depth defined by "TM* PAVEMENT DEPTH", and connected vertically to the existing ground element at the horizontal location of the edge of existing pavement.

Type 2 templates can be used on one or both sides of a shape cluster. However, the designer should always verify the accuracy and viability of the results when using type 1 template only on one side of a shape cluster.

Type 3 : Widening Template matching the GEOPAK shape.

Template configuration 3 redraws the GEOPAK shape precisely.

Subgrade earthwork elements are drawn parallel to the template, at the depth defined by "TM*PAVEMENT DEPTH", up to the edge of the existing pavement, and connected vertically to the existing ground element at the edge of existing pavement.

An assumption is made that type 3 templates will always be employed on both sides of a shape cluster, otherwise results are unpredictable.

• In the criteria folder is a DGN file named DUMMY.XSC. This file is necessary to allow proper employment of the tmplt series variables "EXIST DGN EOP" and "EXIST XSC EOP". Both of these variables are present in the criteria code though only one at a time is actually used. Since both variables appear in the criteria code, both must always be defined. The DGN EOP variable is default defined as x997 in the standard definition file. However, since the XSC EOP is referenced as an XS element, it's default definition has to be a DEFINE_DGN; and a DEFINE_DGN statement requires a real file and file name with real elements to be mapped. This is the purpose of the DUMMY.XSC file. It exists only to provide a default definition for the EXIST XSC EOP variable, and contains only one line element.
• Also note that when the edge of existing pavement is located outside the boundary of the shape, no template is drawn except to connect to existing ground at point 1 and to connect the subgrade point 399 to existing ground.

Type 0:

Type 0 Configuration uses the GEOPAK Pavement Marked Points to redraw the GEOPAK shape precisely by beginning at pavement marked point p1 and drawing across from the left side to the last pavement marked point on the right side. Note that this done only from the left side of the shape cluster.

Since the total number of pavement marked points is variable and we can't draw to a pavement marked point that doesn't exist, the algorithm for drawing the type 0 template is in a multiple IF/ELSE IF block. A test has to be performed to establish the existence of each pavement marked point and then act accordingly.

A maximum of 7 pavement marked points is accommodated.

The subgrade earthwork elements are drawn in the same fashion, with one important difference. The subgrade is drawn (entirely) only from the right side of the shape cluster.

Type 1:

After the necessary points are marked, the Type 1 template is drawn from point 1 outward to the horizontal location of point 2 using the slope defined by points 3 and 8. The subgrade earthwork element is drawn from point 6 outward to the point 2 again using the slope of point 3 to 8.

Type 2:

The type 2 template is drawn from point 1 outward to the horizontal location of point 2 in segments. The width and slope of these segments are determined by using the GEOPAK pavement marked points. An algorithm is employed to determine which shape segment point 1 falls within. This algorithm is somewhat extensive, requiring a large IF/ELSE IF block to test the existence of up to 7 pavement marked points and the relation of point 5 to each one.

Subgrade configurations for Type 1 & 2:

The programmer should note that the template is connected vertically to the existing ground element at point 1, instead of extending across the existing pavement to the other side. Since the template grade elevations on each side of a cluster are based on the existing pavement and therefore are indeterminably variable, the intersection of the left and right template can not be reliably computed. In addition, the programmer has no assurance the user will include type 1 or 2 template criteria on both sides of a cluster.

Type 3:

The type 3 template is drawn in exactly the same manner as the type 0; tracing the GEOPAK shape from the left side of the cluster all the way over to the right edge using the pavement marked points. However, since type 3 is a widening configuration, the subgrade earthwork elements are done left and right separately, in the same manner as the type 2 configuration subgrade.