摘要：AbstractThe research reported in this paper is an empirical observation and quantification of errors in manual traffic counting. Despite the extensive use of manual count data in the national traffic census and assessment, the accuracy of manual counting appears not to have been well investigated and reported. The issue has been investigated and reported in this paper. It is believed that findings from this research could be very useful for traffic assessment using manual count as ground-truth.
关键词：manual count;traffic information quality;traffic survey
