02978nas|a2200409 i 4500 20260817173447.0 221199s1999 th uu m rtt 00| a1eng d .b11764703 AIT Thesis no. TE-98-03 Chumchoke Nanthawichit Comparison of macroscopic parameter estimation techniques Bangkok : Asian Institute of Technology, 1999 86 leaves : ill. Thesis ; no. TE-98-03 Thesis (M.Eng.) - Asian Institute of Technology, 1998 A thesis proposal submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering Macroscopic models of traffic situations, which are able to handle the large size of freeway system with the fast simulation time, are utilized for various purposes in designing and operating freeways. They provide an economical and effective way to evaluate alternative system design and control strategies. The models contain a set of parameters, which have to be estimated according to real traffic data. Model parameters have significant effects on the performance of the model. Various techniques had been used to identify the model parameters. This study focuses on the comparison of parameter estimation techniques. Three . techniques, which are Nonlinear Least Square method, Box Complex method, and Kalman filtering method, were applied to a macroscopic model. Traffic data using in this study were collected from the second stage expressway of Bangkok. The estimation performances of each technique were investigated. Then the results were compared. Finally, the relationships between macroscopic parameters and traffic situation were investigated. Traffic flow Simulation methods Nakatsuji, Takashi, Chairperson Yordphol Tanaboriboon, Examination committee Pannapa Herabat, Examination Committee Japanese Government, Scholarship donor Asian Institute of Technology. Thesis ; no. TE-98-03 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B13194 .b11764703 mnait y 240419 0 991122 m a y 0 mnait mnait mnarc 20 40 Barcode : 30050120810485 CREATED : 1999-12-11 RECORD # : i12162930 LPATRON : 1021914 LCHKIN : 2010-11-30 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 6 TOT RENEW : 2 Barcode : 30050120810493 CREATED : 1999-12-11 RECORD # : i12162942 LPATRON : 1016569 LCHKIN : 2005-04-25 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 7 TOT RENEW : 5 Barcode : 30050160042569 CREATED : 2016-03-23 RECORD # : i12903875 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 19964 19964 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no. TE-98-03 30050120810485 2026-08-17 17:34:47 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no. TE-98-03 30050120810493 2026-08-17 17:34:47 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. TE-98-03 30050160042569 2026-08-17 17:34:47 1 2026-08-17 40