DSL Coverage Map (2002)

The following map appeared in the article "Independent assessment of Telstra's ADSL rollout", Exchange, Volume 14 No 33, 30 August 2002.

Legend: Each green circle represents the location of the centroid of a DSL-enabled exchange building's postcode. As such, no coverage depth indication should be inferred by the size of each green dot.

Centroid: A notional geographic centre of a specific region, representing the intersection of the two axis that join the region's upper-left/lower-right bounds and lower-left/upper-right bounds.

Acknowledgments:
(i) DSL-enabled exchange list - Request, Telstra Wholesale
(ii) Statistical Local Area boundaries - Australian Bureau of Statistics
(iii) Postcode centroids - Mapinfo Australia