An analysis of the necessity for 3D cadastres with reference to Trinidad and Tobago
Griffith-Charles, Charisse & Michael Sutherland
The theoretical methodology for the construction of a 3D cadastre can be an interesting academic exercise that is worthy of investigation. For individual countries or jurisdictions, however, the practical possibility of implementation must be supported by a discussion of the situational need and a cost-benefit analysis of the concept. This exercise to determine the need for a 3D cadastre in Trinidad and Tobago is conducted to determine the instances where the existence of a 3D cadastre would improve the activities that are now performed using the 2D cadastre. For this analysis therefore, an assessment is made of the percentage of the area of the country where 3D rights exist, and are acknowledged and supported, and where 3D restrictions and responsibilities exist and are actively enforced. This is balanced with the increases in costs that would naturally come from aspects of introduction of the 3D cadastre. For many countries, such as Trinidad and Tobago, where the 2D cadastre is not yet comprehensive and current, it is difficult to argue the case for introducing a 3D cadastre as another unattainable ideal. A cost benefit analysis was conducted to determine the feasibility of introducing a 3D cadastre into the country. This paper finds that there is a need for a 3D cadastre in Trinidad and Tobago but that this need is isolated to the urban, densely populated areas and the oil mining areas. The cost/benefit analysis finds a positive benefit/cost ratio. Beyond the economically advisable outcome, the non quantifiable benefits of introducing a 3D cadastre are many and therefore the introduction of a 3D cadastre in selected areas only is recommended.
Event: 2nd International Workshop on 3D Cadastres
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