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The GIS/LRS Data Management team has an opening for a LRS Manager. We are looking for someone who is experienced in the dark magic of ESRI’s Roads and Highway’s, coordinating with multiple groups daily, managing ongoing projects and who is super awesome and works well with other team members. We are still a small group that is trying to grow, so the next member of our team will get to be part of building the section out and helping develop our long-term GIS strategy here at ALDOT. If this sounds like your kinda thing, please contact me and I can provide the information on how to apply for the position and answer any questions. Jeromy Barnes 334-242-6419 barnesj@dot.state.al.us Also, the attachments provided to this post are the descriptions of the positions that will be used to fill the opening.
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06-07-2019
07:37 AM
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Just curious...are you using Trimble's GPS Pathfinder Office software for post-processing? No our field crews have arcmap with the GPS extension in the field with them, so we get shapefiles straight to us in the office that we then clean up in arcmap. `
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08-28-2012
07:22 AM
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From what I've read, and experienced in the field, GPS signals can be blocked by both physical objects (buildings, hilltops, really dense canopy) and certain types of magnetic fields (think transformers on a telephone pole). This may cause the receiver to place points that appear to "jump" or otherwise not be where they're supposed to be. I've had this happen while collecting GPS data both in a vehicle and on foot. Usually, there are not that many, and I just edit them out using Sketch Properties to select the points I don't want (shift-click in the list to select a range of points). If the track or collection of points is much larger, and significant numbers of errors are recorded, I have been known to go back outside and recollect the GPS data. Even doing that, there are still little "blips" or "goofs" that may require manual cleanup in an edit session. This is for your garden-variety, consumer Garmin or Magellan type GPS receivers. If you have target areas that require more reliable acquisition of GPS data, you may wish to look in to the more capable (and expensive) Trimble or Leica, or other, brands of GPS equipment. Some have software where you can set a sensitivity or tolerance level that helps keep the wayward points down to a minimum. Also, there may be post-processing software that can further reduce the amount of unwanted points. Maybe. I've also had to resort to guesstimating a portion of a GPS track by editing it while referencing an aerial photo. Some spots, deep canyons, downtown in a big city, way down inside a heavily vegetated drainage, simply won't get an acceptable GPS signal no matter who's hardware your using. Some times one simply has to draw in the blank spots, as much of a pain as that may be. Hopefully, some of this is helpful. Gregory The data was collected with top of the line trimbles and my data set is state-wide so the manual editing would be painstaking. I have since figured out that messing with the cluster tolerance in the topology eliminates a lot of my issues but I am cautious of doing this in my production environment because I know automation can be dangerous. Does anyone know what a good safe cluster tolerance is. Currently I am around 0.00005 decimal degrees. Thanks for help.
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08-23-2012
08:07 AM
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Thanks Duncan, I have checked the help files and merging two feature datasets is relatively straight forward, but I want to acheive in a tool or batch process the merging of attributes within the same dataset, as if you would in an editing session "merge command (Editor Toolbar)". Similar to dissolve, I guess, but I want to end up, if applicable to the case at hand, a multipart polygon, which may end up being made up of several to several hundred polygons, but the resulting polygon needs to only have a single row entry. Rory Did you ever resolve this issue. I have ran into the exact same thing.
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06-11-2012
08:09 AM
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Do you know of any other way to take all the rows in the attribute table and merge them into one row. I think I can do this in plsql but i would like to keep this all in python.
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06-06-2012
11:21 AM
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I am trying to automate some processes for field our field crews. In part of their process they use the merge tool while in an edit session to merge multiple line segments(gps lines) into one geometry. Is there anyway to access the editor toolbar function with python or arcpy. I have attached a copy of my code so far.
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06-06-2012
08:54 AM
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