Estimating annual average daily traffic (AADT) data on low-volume roads with the cokriging technique and census/population data

Geostatistical methods such as simple, ordinary, and universal kriging are not multivariate models in the usual statistical function. Notwithstanding, techniques utilize random function that include unlimited variables while modeling one attribute. The cokriging technique is a estimation method can simultaneously model two or more attributes, defined with same domains coregionalization. For successful structural analysis, it necessary to have minimum amount of each domain's measured attributes. assumption data integration may yield reliable because their strength drawn from multiple variables. This study investigates impact population variable on traffic volumes. investigation adopts annual average daily (AADT) Montana, Minnesota, Washington attribute countywide second (or factor controlling volumes). AADT for this research span 2009 2016. cross-validation results types explored successfully used evaluate interpolation technique's performance select optimal state. based confirm model's usefulness. surface maps Montana Minnesota accurately represent states' density. had few exceptions; therefore, did necessarily An indication other factors results. Consequently, worth exploring tourism, shopping, recreation centers, possible transiting patterns throughout state.