Question:
Is there a way to automate the design and computation for the additional concrete driveway
area behind the standard driveway turnouts?
Answer:
Payitem 2612000000-E3 CONCRETE DRIVEWAY - Additional Portion (SY) has been added to the Payitem Design
and Computation Manager. By double-clicking on this item, Roadway Designers can place a shape (not filled) in the area
behind the driveway custom linestyle to be computed when driveways cross sidewalks. Additional quantities are needed to reconnect from the back of the sidewalk to existing
concrete driveways.
Checking with the 2006 Specifications Manual Section 848-4 (pg.8-36) and the Transport pay item list, both types of driveways (radius and
drop types) as well as the addition portion are paid for as 6" Concrete Driveway by the squared yard.
As mentioned in the 2006 Roadway Standard Drawings (STD 848.02 and 848.03),"Build this portion of the driveway
pavement only at locations when directed." The additional portion of the driveway is highlighted in blue.
Below is an example of how the Payitem Design and Computation Manager extracts the information from MicroStation.
Note the relationship between the (2) additional portion of driveway and the (1) standard driveway area, (3) sidewalks, and (4) curb and
gutters.
NC DOT
NC DOH
NC GOV
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