טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentJarroush Jad
SubjectReinstating Parcel Boundaries by Real Time
Kinematic GPS
DepartmentDepartment of Civil and Environmental Engineering
Supervisor Professor Gilad Even-Tzur


Abstract

Cadastre is a method for registration of land ownership, which includes relevant information regarding the land parcels such as size and borders, previous owners, mortgages etc. The cadastral mapping in Israel is based upon the Torrens system for Registration of Titles, and includes a measurements and mapping that connects the parcel coordinates to the horizontal control network.

As the Survey Of Israel (SOI) is preparing for a transfer into the age of analytical cadastre and setting new standards for the required accuracy of measurements, and following the incorporation of the new horizontal control network (ITM) in 1995, this research is attempting to suggest a new process of reinstating and marking of parcel boundary points, based on Real Time Kinematic GPS technologies, for the purpose of ensuring cadastral measurement, which will uphold the required accuracy standards and enable consistent boundary reinstating processes for legal purposes.

The research was carried in three different areas in the north of Israel, and examined five methods and compared them to the current method employed by surveyors in accordance with the 1998 regulations. In three of the methods there was an attempt to improve the current method by improving the transfer process between the old and the new control networks. In two of the proposed methods an attempt to avoid the usage of the old control network is suggested, by means of solving the measurement in a local network and by using RTK GPS technologies for obtaining more precise measurements.

Based on the results of this research, it is suggested that the use of RTK GPS in field measurement is highly recommended and beneficial for cadastral mapping purposes, as it enables measurement of old boundary points with an accuracy of 20-30 mm relative to the original point, while using high quality transformation parameters during the transformation process to the new control network (ITM).