Wuttikrai Chaipanha, Ladda Tanwanichkul, and Jumrus Pitaksringkarn, “IMPACT OF MOTORCYCLES AND SHOULDER WIDTH ON TWO- LANE HIGHWAY CAPACITY IN THAILAND USING TRAFFIC MICRO-SIMULATION MODEL”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 17, no. 64, pp. 166–177, Sep. 2019.