Abstract
Geodetic networks development begun in Kenya and Africa as a whole at the dawn of 20th century. Consequently, enormous geodetic data has been realized. In Kenya, the data was recorded in form of paper trigonometric cards, paper topographic maps, and paper cadastral map sheets and centrally archived in the ministry of lands and physical planning headquarters in Nairobi. This was to assist locate and visualize suitable survey of Kenya geodetic pillar of interest to user. However, the user still has to commute to the headquarters in order to physically acquire coordinate information of any pillar in the country. This circumstance has fabricated a framework that has triggered accumulation of millions of paper records. The effectiveness and efficiency of serving the users is greatly undermined by the manual process. Therefore, an alternative solution is necessary to alleviate dependence on an outdated manual process. As a result, this study sought to fill this gap by designing a web geoportal for management of geodetic control networks and user access which incorporates making of payments of coordinates in different systems remotely. The geoportal comprises of an integration of a database management system, a server configuration and a website with an automated data access through a payment gateway. Java scripts and python programming languages were used. The final platform has the following capabilities: spatial visualization, co-ordinates system conversion, online payment, and request and access of data remotely. We foresee that the system will aid the ministry of lands and physical planning to disseminate geodetic information to users efficiently and effectively while tracking revenue payments.
Highlights
In Kenya, the lead agency for provision of geodetic data services is survey of Kenya (Owino, 2013)
The geodetic network major triangulation was based on Cassini coordinate system (Lwangasi, 1993; Mugnier, 2014)
Not much could be achieved in matters that refer to web visualization the adoption of the manual process
Summary
In Kenya, the lead agency for provision of geodetic data services is survey of Kenya (Owino, 2013). It was established to fill the void of the need of registration of title survey and to provide controls for topographical mapping. This geodetic network extension continued from 1906 to 1914 and from 1939 to 1941 (Lwangasi, 1993). In Sir David Gill (Stone, 1976) together with two British astronomers established a different datum and a triangulation network in 1897. Sir Thomas Maclear had preceded Sir David Gill in 1837 to measure arc of meridian, a one degree of longitude starting from cape town table mountains to Piketburg (Aurora) in south Africa (Rainsford, 1951). His work was to verify and extend arc of meridian previously measured by French Abbe
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