increase will continue; the re-introduction of a programme for land sales has resulted in a renewed demand for surveys for sale plans, dimensioned plans and the setting-out of new lots.
7.24. The requirement for all land cases affected by the Urban Renewal Scheme, the proposed Mass Transit Railway and The Long Term Road Study to be considered by P.W.D. Land Conference has resulted in a steady demand for conference plans and for the recording of the decisions on special record plans kept by this office.
Cartography
7.25. Although the survey work in connection with the large-scale mapping of the Colony by air survey is now more or less completed, the drawing office work continues. After the last machine plots were field-checked the names and ornament had to be added before the sheets were returned for fair drawing and this task was completed during the year.
7.26. From the large-scale plans a new series of plans at 1:2,400 scale (200 ft. to 1 inch) is being produced by photo-reduction and 'generalization'. These are being 'scribed' on plastic sheets by a method which is new to Hong Kong. Many of the Cartographic Assistants have already been trained in this technique which requires a shorter period of training than traditional drawing and achieves better results.
7.27. Another new map of the Colony in two sheets, at 1:50,000 scale, is in course of preparation. This is being produced by photo-reduction and 'generalization' of the 1:10,000 scale maps received from the Directorate of Overseas Surveys. It will be completed and produced (in several colours) in 1970.
7.28. Production of a new 'Footpath and Amenities' map of Hong Kong Island was started during the year; it is hoped that this will be put on sale to the public in 1970. It will be printed in several colours and will be followed by similar maps of popular picnic and walking areas in the New Territories.
7.29. Re-drawing of the many old and distorted survey sheets continued as the staff situation permitted, but most of the effort of the 'basic-mapping' section was directed at amending the large-scale plans as the field revision programme expanded.
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