关键词: 交通工程, 全息样本, 相似评价体系, 高速公路货运收费流水数据库, 熵权法

Abstract: In order to determine the sample interval that has the highest similarity to the annual highway traffic flow, and provide a reliable sample selection scheme for traffic flow analysis, a similar evaluation index system based on three dimensions of time, space and axis was established based on the oneyear highway truck toll database data in a domestic province. The Euclidean distance, the angle between the plane vector and the entropy weight method are used to calculate the dispersion between each sample and the annual data. The results show that: when considering a certain dimension alone, the results are different and cannot represent the overall characteristics. Under the similar evaluation system, the samples with the lowest dispersion are March, the eighteenth week and Monday.

Key words: traffic engineering, holographic sample, similar evaluation system, highway freight toll flow database, entropy weight method