Route Survey Of The Stretch Of Road From Oriawo Along Ogbomoso Road, Oyo To School Of Science, Sabo Oyo Town, Atiba Local Government Area, Oyo State

4.6      INFORMATION PRESENTATION (ANALOG AND DIGITAL)
        After all the data have undergone processing (computation), the processed data were used for plan production. The plans were in two different formats, namely:
(1)    Analogue
(2)    Digital plotting
4.6.1    PLAN PRODUCTION
    Three plans were produced after the data has been processed, these are:
(i)    Locational plan
(ii)    Longitudinal plan
(iii)    Cross section plan
4.6.2     MANUAL PLOTTING
        The coordinates (Northing and Easting) of the nails were used in plotting the longitudinal plan with the gridded sheet on a suitable scale.
        The chainage interval was also plotted on horizontal axis and the heights of the points were plotted on the vertical axis on different suitable scale showing the profile of the route. i.e. side view of the route.
        The cross section of the route was also plotted in the same way as the profil, showing the end view of the route.
4.6.3    DIGITAL PLOTTING
        This was done using AUTOCAD whereby the three plans (Locational, profile and cross sectional plan) were produced.
        The heights of each point (centre line, L1, L2, R1 &R2) were entered using Microsoft excel sheet for proper and accurate arrangement, the heights was then copied to the note pad for easy recognition in the AutoCAD environment and then saved.
        AutoCAD Land Development was launched, the project was created and the alignment was created from the polyline drawn. Then, cross section was then selected using select from file (i.e. file used to save those heights in the note pad) click to open and select plot all in the same cross section and the cross section will run.
        The same process was repeated for profile section by setting the unit and the interval given as the project specification.
        As touching traverse digital plotting, coordinates of each nails were entered into notepad, saved as script (.scr) and was run as scipt in the AutoCAD program after setting the necessary units.