published journal article Calibration of INTRAS for simulation of 30-sec loop detector output Transportation Research Record Publication Date January 1, 1994 Author(s) Kelvin Cheu, Will Recker, Stephen Ritchie Suggested Citation Ruey L. Cheu, Wilfred W. Recker and Stephen G. Ritchie (1994) “Calibration of INTRAS for simulation of 30-sec loop detector output”, Transportation Research Record, (1457), pp. 208–215.