RW03 — Route Distance and Elevation Profile Using Google Earth

Research Work Record

ItemRecord
StudentJuan Dela Cruz
ToolGoogle Earth Pro
RoutePoint A to Point B — preliminary access alignment
Route Length1.420 km
SubmissionHandwritten report with printed route and elevation-profile figures

Route Summary

QuantityResult
Total route length1.420 km
Starting elevation1510 m
Ending elevation1528 m
Lowest observed profile elevation1506 m
Highest observed profile elevation1546 m
Net elevation change+18 m
Total elevation range40 m

Representative Profile Record

StationApprox. Elevation (m)Profile Observation
0+0001510Route origin
0+2001516Gradual rise
0+4001530Moderate ascent
0+6001546Highest portion
0+8001538Descending section
1+0001522Continued descent
1+2001506Lowest portion
1+4201528Route endpoint

Preliminary Gradient Checks

For the first 200 m:

g=1516−1510200(100)=3.0%g=\frac{1516-1510}{200}(100)=3.0\%

Between Sta. 0+400 and 0+600:

g=1546−1530200(100)=8.0%g=\frac{1546-1530}{200}(100)=8.0\%

The 0+400 to 0+600 portion is therefore identified as a comparatively steep segment requiring closer field investigation.

Digital Evidence to Attach

Required FigurePurpose
Google Earth route/path screenshotShows alignment and surrounding context
Elevation profile screenshotShows distance-versus-elevation relationship
Marked high/low locationsSupports engineering interpretation

Engineering Interpretation

The desktop profile indicates a generally rolling alignment with a pronounced high point near Sta. 0+600 and a low area near Sta. 1+200. The apparent 8% segment may influence route selection, drainage, grading, and earthwork. These values are suitable for reconnaissance only; final profile grades must come from an appropriate field survey or approved terrain dataset.

Conclusion

Google Earth Pro indicates a route length of approximately 1.420 km, with elevations ranging from 1506 m to 1546 m. The route should receive detailed field profiling before design because the desktop profile identifies potentially steep and low-lying segments.

Submission: Handwritten RW due on the next meeting with printed Google Earth route and profile outputs.