u ▁and ▁Stephen ▁R itch ie ▁developed ▁an ▁incident ▁detection ▁algorithm ▁based ▁on ▁induct ive ▁loop ▁data ▁and ▁an ▁artificial ▁neural ▁network ▁method ▁▁▁▁ 1 9 9 5 ▁– ▁Kenneth ▁Small ▁measured ▁the ▁costs ▁of ▁air ▁poll ution ▁in ▁Los ▁Angeles ▁from ▁motor ▁vehicles ▁▁▁ 1 9 9 5 ▁– ▁Jay ak r ish nan , ▁Wei ▁Ts ai , ▁and ▁Anthony ▁Chen ▁developed ▁a ▁dynamic ▁traffic ▁assignment ▁model ▁with ▁network ▁loading ▁that ▁made ▁use ▁of ▁D Y N AS MA RT , ▁the ▁first ▁mes os cop ic ▁traffic ▁simulation ▁model ▁▁▁▁ 1 9 9 6 ▁– ▁Michael ▁Z hang , ▁Stephen ▁R itch ie , ▁and ▁Will ▁Re cker ▁form ulated ▁the ▁r amp ▁meter ing ▁control ▁as ▁a ▁dynamic ▁optimal ▁control ▁problem ▁and ▁presented ▁solution ▁methods ▁and ▁validation ▁▁▁ 1 9 9 7 ▁– ▁Thomas ▁Gol ob ▁and ▁Michael ▁Mc N ally ▁used ▁a ▁struct ural ▁model ▁to ▁explain ▁interactions ▁between ▁household ▁members ▁▁▁▁ 1 9 9 8 ▁– ▁Rand all ▁C rane ▁empir ically ▁tested ▁the ▁hypothesis ▁that ▁urban ▁design ▁can ▁influence ▁travel , ▁showing ▁that ▁no ▁such ▁evidence ▁could ▁be ▁found ▁from ▁local ▁household ▁travel ▁survey ▁and ▁G IS ▁data ▁▁▁▁ 1 9 9 9 ▁– ▁Carlos ▁Sun , ▁Stephen ▁R itch ie , ▁Kevin ▁Ts ai , ▁and ▁Jay ak r ish nan ▁form ulated ▁the ▁vehicle ▁re ident ification ▁problem ▁as ▁a ▁lex ic ographic ▁optimization ▁problem ▁and ▁demonstrated ▁robust ▁performance ▁▁▁ 2 0 0 0 ▁– ▁David ▁Brown stone ▁expl ored ▁the ▁advantages ▁of ▁mer