PRELIMINARY DESIGN IN PLS-CADD...CORPSCON • DOWNLOAD CORPSCON 6.0 • SETUP INPUT AND OUTPUT...
Transcript of PRELIMINARY DESIGN IN PLS-CADD...CORPSCON • DOWNLOAD CORPSCON 6.0 • SETUP INPUT AND OUTPUT...
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BYJEFF PHILLIPS
TENNESSEE VALLEY AUTHORITY
PRELIMINARY DESIGNIN PLS-CADD
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OUTLINE
• INTRODUCTION• EXTRACTING DATA FROM USGS• MANIPULATING SURVEY DATA• CONVERTING SURVEY COORDINATES• CONVERTING AERIAL IMAGERY• AUTOMATIC V/S MANUAL SPOTTING
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WHY SHOULD I DO THIS?
• YOUR COMPANY IS ON A BUDGET.• CONSERVATIVE ESTIMATES = LESS
AVAILABLE CASH FOR OTHER PROJECTS.• ACCURATE ESTIMATES LEAD TO MORE
PROJECTS & LESS BUDGET OVERRUNS.• MORE PROJECT THAT MEET THE BUDGET
LEADS TO BIGGER BONUSES!
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EXTRACTING DATA FROM USGS
• THE NATIONAL MAP SEAMLESS SERVER• GOOD DATA - SLOW SERVICE• 1/3 ARC (10m) SECOND COVERAGE FOR
CONTINENTAL U.S.A.• 1/9 ARC SECOND (3m) COVERAGE FOR NC,
WV, LA
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MANIPULATING SURVEY DATA
• NED DATA IS IN UTM GEOTIFF FORMAT• USE MICRODEM TO CONVERT TO XYZ
TEXT FORMAT • USE CORPSCON TO CONVERT FROM UTM
TO YOUR COORDINATE SYSTEM• DATA IS NOW READY FOR PLS-CADD
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MICRODEM
• DOWNLOAD MICRODEM 7a• HIT IN/OUT TO OPEN DATA MANIPULATION
WINDOW• EXPORT\ASCII XYZ, FULL DEM• DATA IS NOW IN A SPACE DELIMITATED
TEXT FILE (X Y Z)
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CORPSCON
• DOWNLOAD CORPSCON 6.0• SETUP INPUT AND OUTPUT INFORMATION• LOAD USER DEFINED DATA FILE• ADD OUTPUT FILE EXTENSION• SET INPUT AND OUTPUT TO X=1 Y=2 Z=3• CONVERT
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CONVERTING AERIAL IMAGERY
• DOWNLOAD ERDAS VIEWFINDER 2.1• OPEN TIFF FILE FROM USGS• SAVE TIFF FILE IN YOUR COORDINATE
SYSTEM
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SPOTTING FOR ESTIMATES
• HOW LONG IS THE LINE?• HOW MANY PROHIBITED ZONES?• HOW MANY FIXED STRUCTURE
LOCATIONS?• HOW MUCH EXPERIENCE DO YOU HAVE
WITH SPOTTING TRANSMISSION LINES?
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QUESTIONS
• HOW LONG DOES THIS TAKE?• WHERE CAN I GET THESE
SOFTWARE PROGRAMS?