Transport Performance and Analytics (TPA) Travel Zone Explorer

Travel Zones (TZs) are the spatial unit of geography defined by Transport Performance and Analytics (TPA), a business unit within Transport for NSW (TfNSW). The TZ spatial layer is applied to data sources used by TfNSW for transport modelling and analysis, including the Household Travel Survey and the Census 2016 Journey to Work data.\r\n\r\nThe Australian Bureau of Statistics (ABS) Statistical Area boundaries form the foundation of the TZ. Generally, a TZ is larger than a Statistical Area Level 1 or Mesh Block, both ABS geography definitions. The ABS Statistical Areas are based on population counts whereas TZ boundaries are defined using population, employment, housing and transport infrastructure.\r\n\r\nTZs are designed to have standardised trip generation levels across all zones. This causes zones to be different sizes across the metropolitan area. As with many other spatial boundaries, TZs tend to be small in areas with high land-use densities and larger in areas of lower density.\r\n出行分区（Travel Zones, TZs）是由新南威尔士州交通局（Transport for NSW, TfNSW）下属业务部门交通绩效与分析部（Transport Performance and Analytics, TPA）所定义的地理空间单元。TZ空间图层被应用于新南威尔士州交通局用于交通建模与分析的各类数据源，包括家庭出行调查（Household Travel Survey）以及2016年人口普查通勤数据（Census 2016 Journey to Work data）。 澳大利亚统计局（Australian Bureau of Statistics, ABS）的统计区域边界构成了TZ的基础框架。通常而言，TZ的规模大于澳大利亚统计局定义的1级统计区域（Statistical Area Level 1）或网格区块（Mesh Block）。澳大利亚统计局的统计区域仅基于人口数量划定，而TZ的边界则综合人口、就业、住房与交通基础设施等多要素确定。 TZ的设计目标是实现各分区的出行生成水平标准化，这使得都会区内各分区的面积存在显著差异。与多数其他空间边界类似，土地利用密度较高的区域TZ面积偏小，而低密度区域的TZ面积则相对更大。