Agenda
Registration: 8:00 – 8:30 am
Morning Session: 8:30 – 11:45 am
Lunch (On your own): 11:45 am – 12:45 pm
Afternoon Session: 12:45 – 4:00 pm
Development of State Plane Coordinate System
Who developed the State Plane Coordinate System
Why was the State Plane Coordinate System developed
How was the State Plane Coordinate Systems for the states designed
Development of Individual State Systems
Background for understanding projections
Understanding the Lambert Conformal Projection
Understanding the Transverse Mercator Projection
Analysis of State Plane Coordinate System distortions for various states
Use of Projections in State Systems
Using the Lambert Conformal Projection
• Maryland and Washington D.C.
• New York
• Pennsylvania
• Virginia
• Corrections for Lambert Projections
Scale factor for distances
Elevation factor for distances
• Understanding the effect of the geoid separation
Combined factor for distances
t-T Correction (arc to chord correction) for angles
Using the Transverse Mercator Projection
• Delaware
• Corrections for Transverse Mercator Projections
Scale factor for distances
Elevation factor for distances
• Understanding the effect of the geoid separation
• Combined factor for distances
• t-T Correction (arc to chord correction) for angles
State Plane Coordinates implications related to boundary surveying
Discussion of grid or ground data shown of plats and plans
Using the State Plane Coordinate System in the Field
Discussion of grid or ground distances in the field
Low Distortion Projections
What is good about them
What is bad about them
How they are designed
How you use them
Credits
Professional Engineers
6.0 Maryland Category A PDHs
Professional Land Surveyors
6.0 Maryland Category A CPC Units
Continuing Education Credit Information
This seminar is open to the public and offers up to 6.0 Category A PDHs to Maryland professional engineers and 6.0 Category A CPC Units to Maryland land surveyors. Maryland land surveyors: please allow an additional 15 minutes after the seminar to complete a required exam.
HalfMoon Education is an approved continuing education provider for engineers and land surveyors in Maryland. Individual courses are not subject to preapproval.
Engineers and land surveyors seeking continuing education credit in other states will be able to apply the hours earned at this seminar, in most cases. Refer to specific state rules to determine eligibility, or contact HalfMoon Education for assistance. HalfMoon Education is an approved continuing education provider in New York (NYSED Sponsor No. 35).
Attendance will be monitored and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.
Speakers
Alan Dragoo
Alan R. Dragoo is a licensed surveyor in the State of Maryland who was employed for 27 years by the Washington Suburban Sanitary Commission (WSSC) in Laurel, Maryland. He was a geodetic project manager in charge of high-precision horizontal and vertical geodetic surveying projects using the global positioning system and classical methods in support of the WSSC Control Network, the Interagency GIS System and the deformation studies for three dams. Mr. Dragoo also worked for Trimble Navigation for eight years as a technical support representative in support of sales for the Northeast U.S. He also worked for Keystone Precision Instruments for eight years as the sales manager for land survey products for Delaware, Maryland and Virginia. He is currently employed by Maser Consulting at their Sterling, Virginia, office as their assistant Survey Department manager.
Mr. Dragoo worked with the National Geodetic Survey to survey the top of the Washington Monument. He was co-director for the completed survey on the top of the U.S. Capitol to determine its position and in the basement of the U.S. Capitol to locate the cornerstone set in 1792. He is a member and fellow of the National Society of Professional Surveyors; past president for the American Association for Geodetic Surveying (AAGS); past editor for the Geodetic Surveyor, a newsletter for AAGS; and National Society of Professional Surveyors director for the Maryland Society of Surveyors. Mr. Dragoo was MSS Surveyor of The Year for 1996 and Russell E. Lowman award recipient and Life Time Achievement award recipient in 2015. He was also director for the spring 1996 ASPRS/ACSM Baltimore Convention and director for the spring 1998 ACSM Baltimore Convention.
Mr. Dragoo has authored and co-authored articles and papers for Professional Surveyor magazine; for Surveying and Land Information System, a journal for the American Congress on Surveying and Mapping; and for society newsletters in the United States and Canada. He has also presented numerous technical sessions and workshops on matters related to geodetic surveying, State Plane Coordinates, least squares, compatibility of GPS with conventional measurements, Trimble Business Center software, and the sources of errors in conventional surveying.