GIS and Remote Sensing in urban transportation planning: A case study of Birkenhead, Auckland

  residential or the commercial land-use are located inside a buffer zone of 300 meters from all routes.

It is assumed that bus stops in the Birkenhead region are adequate if 80 percent or more of the residential land-use or the commercial are located within a buffer zone of 300 meters from all bus stops.

These two assumptions are based on the author抯 judgment which will allow a normal person to walk about eight minutes to catch a bus provided he can walk 40 metres per minute.

1.4 Significance of the Study:
The significance of the study is demonstrated in the following:

1. The practical nature of the study because it deals with a vital aspect of an important region in the North Shore city.
2. The fact that, to the best knowLEDge of the writer, there is no previous study that tried to examine the adequacy of bus routes and bus stops in the Birkenhead region.
3. It is based on recent remote sensing data as well as current information about bus services in the study region.
4. It uses the GIS capabilities of Arcinfo and Arcview in analysing and preparing final maps.

1.5 The Data
The test site is a region in the North Shore City composed of four suburbs, namely Birkenhead, Chatswood, Birkdale, and Beach Haven. These four suburbs are calLED collectively Birkenhead Region because they all appear on one 1994 SPOT image and on one 1999 colour aerial phtograph, both available in the database of the Department of Geography, University of Auckland under the name Birkenhead (Plate 1).

Plate 1: Remote sensing materials used in Birkenhead study: (A) 1994 SPOT images (B) 1999 aerial photograph.
The SP

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