Traverse file format
This topic applies to ArcEditor and ArcInfo only.
A traverse file is generated automatically when you save a traverse. It can also be created manually for loading into the Traverse window .
The following is a sample traverse file:
DT QB DU DMS SP 454868.9 298986.09 EP 454868.9 298986.09 DD N9000E 105 AD 4500 100 TC C 45 D 10000 L NC C 45 D 10000 C N4500E R
The traverse file consists of several header lines describing the direction type and units as well as the start and end coordinates. The subsequent lines describe each course in the traverse.
Any direction in a course must be in the appropriate direction type and direction units. There must not be spaces in the direction. Angles must be in the appropriate direction units format. All distances are specified as numerals and will be assumed to be in the distance units of the coordinate system into which the traverse is loaded.
Part 
Meaning  

DT 
Direction type (required). The direction type is used to specify directions in the direction–distance and curve courses. These are the valid choices:


DU 
Direction units (required). The direction units are used to specify directions and angles in the direction–distance, tangent curve, and curve courses. The following are valid choices:


SP 
Start point (required). The start coordinates for the traverse, specified as x,y. For example: SP 454868.9 298986.09 

EP 
End point (optional). The end coordinates for the traverse, specified as x,y. For example: EP 454868.9 298986.09 

DD 
Direction–distance course. A straight course specified by a direction and a distance. For example: DD N9000E 105 

AD 
Angle–distance course. A straight course specified by an angle relative to the previous course and a distance. This must not be the first course in the traverse. For example: AD 4500 100 

TC 
Tangent curve course. A curved course that is tangent to the previous course. After the TC, the next two pairs of tokens specify how to construct the curve. Use any of the following choices followed by the value:
TC C 45 D 10000 L This must not be the first course in the traverse. 

NC 
Nontangent curve. After the NC, the next two pairs of tokens specify how to construct the curve. Use any of the following choices followed by the value:
NC C 45 D 10000 C N4500E R 