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Driveway Topography

Driveway Topography. By Joseph and Matt Dick. Introduction. Purpose Gather elevation data with Total Station to manage water flow Goals Proper operation of Total Station Successfully use a turning point Produce topographic map with data. Data Collection Stage.

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Driveway Topography

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  1. Driveway Topography By Joseph and Matt Dick

  2. Introduction • Purpose • Gather elevation data with Total Station to manage water flow • Goals • Proper operation of Total Station • Successfully use a turning point • Produce topographic map with data

  3. Data Collection Stage • Evaluate site for best Total Station locations • Develop strategy for point collection method • Perform correct set-up of Total Station and prism pole • Shoot benchmark & collect first set of points • Turing point • Shoot benchmark & collect second set of points

  4. View N to S of driveway

  5. View to N from Total Station

  6. View S from Total Station

  7. Total Station at 2nd Location

  8. Data Analysis Stage • Converted azimuth readings to decimal degrees • Converted vertical distance readings to elevation • Benchmark = 100ft • 1st Total Station elevation = 97.345ft • 2nd Total Station elevation = 109.66ft • Entered all point data in excel spreadsheet

  9. Mapping Stage • Create shape files for points and lines • Enter point data • Used spline interpolation and contour tools • Acquired satellite imagery of property • Georeferenced imagery to points • Created final map product

  10. Results • The driveway has varying elevations • Points 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

  11. Discussion • Possible 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

  12. Conclusions • Driveway needs a ditch to divert water • Have a map to show landscaper/excavator • Don’t need a second bench mark, and remember to get back bearing for turning point

  13. Questions?

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