Spławińska, Malwina. “Methodology For Determining Reliable Traffic Parameters For Current Analysis Of Performance Of Motorways And Expressways”. The Baltic Journal of Road and Bridge Engineering 14, no. 1 (March 28, 2019): 104–123. Accessed May 1, 2024. https://bjrbe-journals.rtu.lv/bjrbe/article/view/bjrbe.2019-14.435.