Cadastral Plans Research Articles

Rates of coastal erosion and accretion in New Zealand

Abstract Rates of coastal erosion and accretion for New Zealand are calculated for the period since early European colonisation. Methods used for calculating rates from cadastral plans, vertical aerial photographs and field measurements are described, evaluated, and illustrated with examples. The most natural reference line for measurements of shoreline changes and for defining the seaward boundary of land is the seaward limit of land vegetation. Measurements made from air photographs and plans at scales larger than 1:4000 have errors less than ± 1 m. As scales become small, errors increase proportionately. Along depositional shorelines, erosion and accretion generally occur at 0.5–4.0 m.y−1. Maximum erosion and accretion rates are 25.4 m.y−1 at North Kaipara Head and 68.9 m.y−1 at Farewell Spit respectively. Cliff recession generally occurs at 0.25 ‐ 1.0 m.y−1 with maximum rates of 2.25 m.y−1 for mudstone cliffs at Cape Tumagain and 3.46 m.y−1 for conglomerate cliffs at Ngapotiki.

SURVEYS FOR A MASS TRANSIT SYSTEM IN HONG KONG

AbstractThis article gives a brief account of the surveys required for the design and planning of a Mass Transit underground railway system in Hong Kong. It describes the control surveys needed for both the setting-out of the tunnels and the control of private development which might frustrate the construction of the routes. It also mentions the preparation of special cadastral plans for buildings affected by the alignment of the railway and the strip plans provided for the engineers designing the system.

THE THREE-MILE SECTIONAL MAPS OF THE CANADIAN WEST

Soon after the Confederation of Canada in 1867, settlement of the Prairies was initially assisted by the preparation of large-scale survey plans. Popular demand for maps at a more convenient scale prompted the Federal Department of the Interior to establish a map series at 6 miles to 1 inch in 1873. By 1891, it became evident that the scale was too small to show necessary map detail and accordingly the Department authorized a new series at 3 miles to 1 inch. This famous sectional map series of the Canadian West eventually increased to 132 sheets covering the great plains, and extending westward to the Pacific, eastward into Ontario and as far north as Dawson City in Yukon Territory. In 1919, a decision was made to convert this series of cadastral plans into topographic maps. The New Series maps remained in production from 1920 to 1955 when they were finally superseded by the 1:250,000 maps of the National Topographic Series.

Mapping a Continent

Abstract Historical. The first surveys in Australia, carried out expressly for the purpose of producing military maps, were commenced in 1908. This task was undertaken by militia officers of the Intelligence Corps. The maps produced were based on the cadastral or parish plans published by the Lands Departments of the various States. Contours and other topographical detail were added to the original plans, but as these were not based on an accurate framework the finished product was far from satisfactory.

The Economic Limits of Aeroplane Photography for Mapping, and Its Applicability to Cadastral Plans

The Economic Limits of Aeroplane Photography for Mapping, and Its Applicability to Cadastral Plans