Student Surveyor

Traverse and "measure rounds"

I had a fun and interesting practice job last week - setting offset staking for grubbing and rough grading of 700' of driveway heading down steep, rocky, wet jungle.

Fun part was using a Trimble robotic S6, TSC2 with Survey Controller 12.50.  It had its challenges beside the physical, but some questions.  I've seen instruction on using SC12.50 in a traverse where they shoot the forward station with a single face topo shot and then move to it and backsight, etc.  I doubt this is recommended, so was searching for an intuitive way to shoot something other than topo for a fwd station, preferably multiple dual face averaged readings.  Is this what "measure rounds" can be used for (that's what I did, but it wasn't intuitive)?

I've also seen instruction where, after taking the fwd station shot, the surveyor "ends conventional survey" and moves forward to the new station, starts a new survey and runs a standard setup, backsighting on the previous station.  This is fine, but seems like this tried and true software would have a way to establish continuous traverse stationing with solid point averaging while also giving the freedom to shoot existing features and stakeout points in between movements seamlessly.

I didn't find online or in my old SC manual anything describing how to do this seemingly pretty standard procedure.

Besides that, which may or may not have anything to do with this, what is "measure rounds" used for?  I thought it worked well enough to move forward in the traverse, but it seems to collect points almost asking you to do something with them... is this the traverse procedure in SC language?

mahalo ma mua loa,

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  • It is intuitive enough since you used measure rounds.  It has been at least 7 years since moving to Access from Survey Controller, but I believe it is pretty much the same between the two programs.  Measure rounds gives you the ability to review your measurements and to throw out rounds that introduce higher residuals.

    It is the right tool to use even though your job is for rough grade with short shots.  Time is money but any supplemental control set should meet a minimum accuracy std. acceptable for the job.    

  • Land Surveyor
    As long as you keep the same point name, you can take as much shots as you want, in both faces, and they will be averaged
  • Land Surveyor
    Why would you bother with anything more than topo fwd shots for rough grading such a short distance in tough terrain?
  • Land Surveyor

    I've got an S6 and Access on a CU controller. To traverse, I measure forward points using "Measure Rounds" and achieve much tighter results than simply traversing a topo shot. 

    Do not change the point name of points measured using "Measured Rounds"! If you change the point name all subsequent coordinates and heights reliant on the point will be lost. I learned this the hard way.:(

    Good luck. 

    Shane Dennis

    Cairns, Australia

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