Abstract: Abstract: Disaggregate choice model，especially LOGIT model, have been used widely in development of travel demand model，many practical transportation policy issues are concerned with mode choice,But procedure of development of LOGIT model is difficult，especially model calibration and form of utility function. This paper discuss relational problems on development of LOGIT model，Particular emphasis is placed on practical procedures for selection the correct explanatory variables and on comparing different versions of utility function using statistical methods.

Key words: LOGIT model, parameter estimation, t-test, likelihood test

摘要： 离散选择模型，特别是LOGIT模型在交通需求模型建立过程中，应用非常广泛，许多实际的交通政策问题都涉及到方式选择，然而LOGIT模型的建立非常困难，尤其是效用函数及参数估计.本文重点就LOGIT模型参数估计的有关问题进行讨论，特别是运用统计方法如何对效用函数的变量进行选取及比较不同形式效用函数.

关键词: LOGIT模型, 参数估计, t检验, 似然率检验