Driveway Topography
Post on 15-Feb-2016
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Driveway TopographyBy Joseph and Matt Dick
IntroductionPurpose
Gather elevation data with Total Station to manage water flow
Goals Proper operation of Total StationSuccessfully use a turning pointProduce topographic map with data
Data Collection StageEvaluate site for best Total Station locationsDevelop strategy for point collection methodPerform correct set-up of Total Station and
prism poleShoot benchmark & collect first set of pointsTuring pointShoot benchmark & collect second set of
points
View N to S of driveway
View to N from Total Station
View S from Total Station
Total Station at 2nd Location
Data Analysis StageConverted azimuth readings to decimal
degreesConverted vertical distance readings to
elevationBenchmark = 100ft1st Total Station elevation = 97.345ft2nd Total Station elevation = 109.66ft
Entered all point data in excel spreadsheet
Mapping StageCreate shape files for points and linesEnter point dataUsed spline interpolation and contour toolsAcquired satellite imagery of propertyGeoreferenced imagery to pointsCreated final map product
ResultsThe driveway has varying elevationsPoints taken lined up with the driveway (they
were accurate!)The contour map confirms that water will
flow down the center of the driveway from south to north
DiscussionPossible errors
Had concerns about turning point and accuracy of point data there after
Weather was cloudy and raining at time during data collection
Points 58 and 94 were not included because they were far outside data collection area
Point collection method could have skewed results
ConclusionsDriveway needs a ditch to divert waterHave a map to show landscaper/excavatorDon’t need a second bench mark, and
remember to get back bearing for turning point
Questions?
top related