Chris Wasemann
  • Chicago, IL
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Traverse between two known points?

Started this discussion. Last reply by Joel van Cranenbroeck Jan 27, 2018. 24 Replies

I would like to know a methodology for traversing between two known points that cannot see between the two points. That is you cannot occupy one point and see the other. At Ohare airport in Chicago…Read more →

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Joel van Cranenbroeck replied to Chris Wasemann's discussion Traverse between two known points?
"In that case, considering the nowadays accuracy in angles and distances, better to not even adjust angles but to loosely integrate the solar azimuths at both ends. That can be handled by least squares adjustment considering the respective standard…"
Jan 27, 2018
Joel van Cranenbroeck replied to Chris Wasemann's discussion Traverse between two known points?
"GPS Network will not "arrange" the traverse between 2 known points, it will provide the control points but you have situation where you cannot survey by GPS/GNSS all the traverse points. We had the vase for instance in Hong Kong in a very…"
Jan 27, 2018
Jim Jacaruso replied to Chris Wasemann's discussion Traverse between two known points?
"GPS Network."
Jan 27, 2018
Joel van Cranenbroeck replied to Chris Wasemann's discussion Traverse between two known points?
"That's rather simple indeed ... You start your computation fixing the coordinate of the first starting point (known coordinate) and an approximate orientation (bearing or azimuth) then you propagate the coordinates till the ending point. When…"
Jan 26, 2018
Chris Wasemann's discussion was featured

Traverse between two known points?

I would like to know a methodology for traversing between two known points that cannot see between the two points. That is you cannot occupy one point and see the other. At Ohare airport in Chicago I have several known monuments. I would like to traverse between two points to establish control between the monuments. However, if I start on one point I will not have a known back sight. Also, the two points are not within sight of each other. Several turns will be required. How do I go about…See More
Jan 24, 2018
MARTIN SILA replied to Chris Wasemann's discussion Traverse between two known points?
"DO a ray trace: occuppy an arbitrary point, set an arbitrary orientation to one of the monuments, traverse through a set of points to the 2nd monument, adjust using the datum bearing and distance."
Jan 3, 2018
Chris Wasemann's discussion was featured

Traverse between two known points?

I would like to know a methodology for traversing between two known points that cannot see between the two points. That is you cannot occupy one point and see the other. At Ohare airport in Chicago I have several known monuments. I would like to traverse between two points to establish control between the monuments. However, if I start on one point I will not have a known back sight. Also, the two points are not within sight of each other. Several turns will be required. How do I go about…See More
Dec 16, 2017
Fred Flintstone PLS replied to Chris Wasemann's discussion Traverse between two known points?
"Setup on 1st point and perform a solar observation to a reference mark, reduce it to true or grid azimuth, do the same for the second point, setup on 1st point backsighting the reference point and traverse to to new points and close on your second…"
Dec 9, 2017
Noble Imo Edem Asuquo replied to Chris Wasemann's discussion Traverse between two known points?
"You can use DGPS for the job or if you are proficient with total station, you use resection method"
Dec 4, 2017
Kevin D. Allen replied to Chris Wasemann's discussion Traverse between two known points?
"CW, So you know the coords of the two points you are traversing between right? You can calc your known bearing between these two points.  Just set up on a random point between them, backsight the first and then traverse however you need to get…"
Dec 4, 2017
Billy Brooks replied to Chris Wasemann's discussion Traverse between two known points?
" Hi Chris, This depends on what the data on the monuments is. Was this data conventional or was  GPS used. If not, this GPS Azimuth does not relate to the Azimuth between the known monuments anyway it is no more than a assumed…"
Dec 3, 2017
Chris Wasemann replied to Chris Wasemann's discussion Traverse between two known points?
"A resection will not work because of line of sight obstructions. Using GPS is not ideal due to tall buildings and trees. I did set a gps point to use an azimuth to use for a back sight while occupying one of the known monuments. However, I do not…"
Dec 3, 2017
Billy Brooks replied to Chris Wasemann's discussion Traverse between two know points?
"Hi Erasmus, It just depends, on what you can see and use. If the two points can be seen by doing a resection then you started a new problem. Although a 2 point resection is possible to have high accuracies,it is not wise to use them.  You need…"
Dec 3, 2017
EWEJE EMMANUEL TIMILEYIN left a comment for Chris Wasemann
"hello"
Dec 3, 2017
Erasmus replied to Chris Wasemann's discussion Traverse between two know points?
"I really think resection method will do!!!"
Dec 3, 2017
Erasmus favorited Chris Wasemann's discussion Traverse between two know points?
Dec 3, 2017

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