This research aimed to analysis the accessibility efficiency of the transport network and land use
in the context of Chiang Mai comprehensive plan and existing areas. A combination of theory and Space
Syntax technique with Geographic Information System were used for surveying and document analysis.
It was found that urban planning area increasing from 106.0 km2 in 1984 to 429.0 km2 in 1989 to the
present. Therefore, the transport infrastructure has changed from the center to other areas in Chiang Mai.
In terms of ring road system and patterns of land use in the center of Chiang Mai city, it was found that
space in urban areas was used for commerce and residence densely. On the other hand, space in agriculture
and rural areas were used for residence in average level to low level. The efficiency accessibility of
transport network as measured by Space Syntax models was at average of 0.279821, 0.205415, 0.203256,
and 0.214098 respectively. Also, structural morphology appeared in the center area in 1984. Then, it was
expanded to the south of Chiang Mai in 1989 and to the east along Highway no. 1 and ring road and radial
road in 1999 to the present. The trend of expansion is an important factor for land use control in the future
with law and regulation control, plan for green infrastructure and best practice for preserve the area of
rural and agriculture.