Route surveying

This presentation explains about route surveying, its needs, application, methods etcc.,

1. Route surveying
Route Survey―a survey for determining the
route of a proposed pipeline, power line, cable,
road or other linear facilities in order to
acquire a right-of-way, servitude or easement
from the property owner being crossed.
-Prakash Kumar Sekar
Prakash Kumar Sekar

2. Reconnaissance Survey
Gather sufficient information to select
one or more possible route
•Assemble basic information
–Topographic maps
–Cadastral maps / GIS
–Aerial photos
Prakash Kumar Sekar

3. Reconnaissance Survey
•Evaluate
–General topography
–Geology
–Meteorological statistics
–Flood records
–Unsuitable terrain
–Land use and ownership / Local Authority’s
GIS
–Existing services
–Existing communications
Prakash Kumar Sekar

4. Reconnaissance Survey
•Field reconnaissanceto confirm
assembled data
•Choosepossible routes
•NOTIFYRELEVANT AUTHORITIES
Prakash Kumar Sekar

5. Preliminary Surveying
•Collect sufficient information to design
the horizontal and vertical alignment
and thus:
–Likely earthwork quantities
–Intersection details
–Bridge and culvert sites
–Stream diversions
–Land resumptions
–Water catchments
–Flood levels
–Road building material
–Total cost Prakash Kumar Sekar

6. culvert
Prakash Kumar Sekar

7. Preliminary Survey
•Survey methodology
–Place traverse stationsalong proposed
route
–Establish basic horizontal and vertical
control
–Control traversebetween traverse
stations for horizontal coordinates
–Spirit levelvertical control (if necessary)
–Draw paper location for minimum gradient
and curvature, earthwork, suitable cross
section
Prakash Kumar Sekar

8. Preliminary Survey
It is taken by three party
•The transit party
–Consists of four to seven person conducts
traverse and measure azimith
–Records topographical details, property lines,
drainage structures pipe lines, road and
railways
Prakash Kumar Sekar

9. •The level party (3 person)
–Establish bench marks
–Conducts l-S and C-S surveying
•Topography or cross section party
•Detail topography survey
Prakash Kumar Sekar

10. Working Survey
•A working survey must provide data of
sufficient accuracy and extent for the
satisfactory detailed design of the road
and the later setting-out for
construction.
Prakash Kumar Sekar

11. Working Survey
•Survey Marks
–Pegs(75mm * 50mm) are placed along the
centre line (straight and curves) at 20 / 50
metre intervals
–Offsets(75mm * 50mm pegs, short star
pickets driven flush) placed left and right of
centre line
•200 metre intervals
•beginning, centre and end of curves
–leveland checklevelall centre line and
offset pegsPrakash Kumar Sekar

12. Working Survey
•Survey Marks, cont
–establish benchmarks
•at 1km intervals
•at bridge and culvert sites
Prakash Kumar Sekar

13. CONSTRUCTION SURVEY
urban equivalent to the Working Survey
•route is pre-determined by the presence
of existing road reserves
•general survey requirements are the
same as for Working Surveys
•density of detail is such that the
procedures of observation and
recording may have to be varied
Prakash Kumar Sekar

14. Route Surveying for highway
•Recinnaisance Survey
–Alignment should avoid cutting and banking
–No obstruction
–Gradient
–Avoid cross drainage works
–Type of soil, flood level
–Source of construction material
–Type of terrain
Prakash Kumar Sekar

15. Preliminary survey for highway
•Primary traverse
•Topographical survey
•Leveling work
•Hydrological data
•Soil survey
•Establishing bench marks
•Intersection of canals rivers and property
Prakash Kumar Sekar

16. Location survey for Highway
•Centerline line is marked at 30m interval
•Benchmark for every 300m
•Cross section for every 30m
•All detail of cross drainage work
•Topographical detail
•Soil survey
•Total land width of highway
•Tangent points and intersection points
Prakash Kumar Sekar

17. Route Survey for water ways
•Have both historical and modern
importance
•ocean water transportation
–75% of world trade
–Also passenger transportation
–Military purposes
Prakash Kumar Sekar

18. Route Survey for water ways
•Inland water transportation
–Oldest form of transportation
–Uses canal or river
–Factors affecting inland transportation
•Diversion of rivers
•Deforestation
•Less importance
Prakash Kumar Sekar

19. Route Survey for water ways
•Topographical survey, hydrographic survey
and soil investigation
•Regular dredge to avoid silt formation
–Bucket or ladder dredger
–Hydraulics or cutter dredger
–Grab dredger
–Dipper dredger
–Rock dredger
Prakash Kumar Sekar