1、Technology 标定;出行分布ms |: U 491. 112 DS M : A cI|: 1008- 5696( 2009) 01- 0106- 03Simple Method and Aplication on Calibration of the Gravity ModelZH ANG Lan, PENG Guo-x io ng( T o ng ji U niver sity, Schoo l o f T r ansport ation Eng ineering , Shanghai 201804, China)Abstract: This peper elaborates the
2、 principle, forms and impedance function of gravity m odel. And it intro-duces a m ethod to calibrat the parameter of the double-restriction gravity mo del, then illustrate w ith an ex-am ple as residents tr ip distribution of a west Metro. The m ethod is simple and it has some actual v alue inthe s
3、tag e of trip distributio n fo rcast in tr ansport planning.Key words: the double-r estriction gr av ity mo del; calibration; trip distributionl : 2008-07-02Te:f ( 1984 ), o, V 3,Z_:Y# e.1 重力模型简介1. 1 Q d E5,sl u 3a l uWYZLy M1b L !:Yl uijWs l ui? 3al uj 1,l uil ujWYE FQ1bE8 I n Ys u69y bWa HWEy , S =Y? PK .CY? M .: Y, 2001. 2 V, z. SZE# J .Y “d, 2003, 3( 2) : 51-56. 3 +,uk, !. ZE5) J . y, 2007, 33( 25) : 65- 67. 4 , a. E s J .y j v:1 S, 2007, 36( 6) : 618-621. 5 .Y M . Z:6v, 1989. 6;, , ,. Z s S# J .Y9 , 2006, 24( 2) : 47-51. 7 d .Y? ZE M .: bv, 1998.3 I : +#108#
