The transportation accessibility and land use in the context of Chiang Mai comprehensive plan (4th revision) in 2022

Abstract

This study was conducted to analyze morphological structure of the Chiang Mai city plan (4^th Revision) through value of accessibility of transportation network with the city’s land use in the future. Research methods employed were the following: document analysis; surveying; developing a Geo-Informatics database; spatial model, Space Syntax; and overlay analysis on Geo-Informatics System. The study found that the Chiang Mai City Plan (4^th revision) defines main land use patterns in the future. Land use can be very dense from city centers and sparse in suburban areas. The morphological structure of the transport network is characterized as a grid pattern in the center of Chiang Mai city. It is surrounded by a ring road to deflect traffic from the city center and radius roads connecting the city center with the surrounding urban community. Analysis of the accessibility values of the transportation networks using the Space Syntax model, found that the average global, local and connectivity integration value were 0.147122, 1.01382 and 2.22492 respectively. It has high integration values and relates to the main land use for residential and commercial areas. However, the morphological characteristics of the transportation networks with high accessibility value are super-blocks and surrounded by main roads. There are considerations for development the inter connection of main roads and secondary roads within a block can prevent congestion problems. In addition, the main roads have high value of accessibility that crisscrosses the rural and agriculture land of the city. This may affect the sparse urban development along roads.